feat: add reasoning format

feat: add include_reasoning
feat: change repo name
2025-06-15 12:59:44 +00:00 · 2025-06-15 12:59:08 +00:00 · 2025-06-15 12:58:45 +00:00 · 2025-05-29 11:31:35 +01:00 · 2025-05-20 14:45:40 +01:00 · 2025-05-13 12:59:06 +01:00
66 changed files with 1962 additions and 830 deletions
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -8,7 +8,7 @@ assignees: ''
 ---

 Your issue may already be reported!
-Please search on the [issue tracker](https://github.com/sashabaranov/go-openai/issues) before creating one.
+Please search on the [issue tracker](https://git.vaala.cloud/VaalaCat/go-openai/issues) before creating one.

 **Describe the bug**
 A clear and concise description of what the bug is. If it's an API-related bug, please provide relevant endpoint(s).
--- a/.github/ISSUE_TEMPLATE/feature_request.md
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@@ -8,7 +8,7 @@ assignees: ''
 ---

 Your issue may already be reported!
-Please search on the [issue tracker](https://github.com/sashabaranov/go-openai/issues) before creating one.
+Please search on the [issue tracker](https://git.vaala.cloud/VaalaCat/go-openai/issues) before creating one.

 **Is your feature request related to a problem? Please describe.**
 A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -1,5 +1,5 @@
 A similar PR may already be submitted!
-Please search among the [Pull request](https://github.com/sashabaranov/go-openai/pulls) before creating one.
+Please search among the [Pull request](https://git.vaala.cloud/VaalaCat/go-openai/pulls) before creating one.

 If your changes introduce breaking changes, please prefix the title of your pull request with "[BREAKING_CHANGES]". This allows for clear identification of such changes in the 'What's Changed' section on the release page, making it developer-friendly.

--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -13,15 +13,17 @@ jobs:
    - name: Setup Go
      uses: actions/setup-go@v5
      with:
-        go-version: '1.21'
+        go-version: '1.24'
    - name: Run vet
      run: |
        go vet .
    - name: Run golangci-lint
-      uses: golangci/golangci-lint-action@v4
+      uses: golangci/golangci-lint-action@v7
      with:
-        version: latest
+        version: v2.1.5
    - name: Run tests
-      run: go test -race -covermode=atomic -coverprofile=coverage.out -v .
+      run: go test -race -covermode=atomic -coverprofile=coverage.out -v ./...
    - name: Upload coverage reports to Codecov
-      uses: codecov/codecov-action@v4
+      uses: codecov/codecov-action@v5
+      with:
+        token: ${{ secrets.CODECOV_TOKEN }}
--- a/.gitignore
+++ b/.gitignore
@@ -17,3 +17,6 @@
 # Auth token for tests
 .openai-token
 .idea
+
+# Generated by tests
+test.mp3
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -1,272 +1,168 @@
-## Golden config for golangci-lint v1.47.3
-#
-# This is the best config for golangci-lint based on my experience and opinion.
-# It is very strict, but not extremely strict.
-# Feel free to adopt and change it for your needs.
-
-run:
-  # Timeout for analysis, e.g. 30s, 5m.
-  # Default: 1m
-  timeout: 3m
-
-
-# This file contains only configs which differ from defaults.
-# All possible options can be found here https://github.com/golangci/golangci-lint/blob/master/.golangci.reference.yml
-linters-settings:
-  cyclop:
-    # The maximal code complexity to report.
-    # Default: 10
-    max-complexity: 30
-    # The maximal average package complexity.
-    # If it's higher than 0.0 (float) the check is enabled
-    # Default: 0.0
-    package-average: 10.0
-
-  errcheck:
-    # Report about not checking of errors in type assertions: `a := b.(MyStruct)`.
-    # Such cases aren't reported by default.
-    # Default: false
-    check-type-assertions: true
-
-  funlen:
-    # Checks the number of lines in a function.
-    # If lower than 0, disable the check.
-    # Default: 60
-    lines: 100
-    # Checks the number of statements in a function.
-    # If lower than 0, disable the check.
-    # Default: 40
-    statements: 50
-
-  gocognit:
-    # Minimal code complexity to report
-    # Default: 30 (but we recommend 10-20)
-    min-complexity: 20
-
-  gocritic:
-    # Settings passed to gocritic.
-    # The settings key is the name of a supported gocritic checker.
-    # The list of supported checkers can be find in https://go-critic.github.io/overview.
-    settings:
-      captLocal:
-        # Whether to restrict checker to params only.
-        # Default: true
-        paramsOnly: false
-      underef:
-        # Whether to skip (*x).method() calls where x is a pointer receiver.
-        # Default: true
-        skipRecvDeref: false
-
-  mnd:
-    # List of function patterns to exclude from analysis.
-    # Values always ignored: `time.Date`
-    # Default: []
-    ignored-functions:
-      - os.Chmod
-      - os.Mkdir
-      - os.MkdirAll
-      - os.OpenFile
-      - os.WriteFile
-      - prometheus.ExponentialBuckets
-      - prometheus.ExponentialBucketsRange
-      - prometheus.LinearBuckets
-      - strconv.FormatFloat
-      - strconv.FormatInt
-      - strconv.FormatUint
-      - strconv.ParseFloat
-      - strconv.ParseInt
-      - strconv.ParseUint
-
-  gomodguard:
-    blocked:
-      # List of blocked modules.
-      # Default: []
-      modules:
-        - github.com/golang/protobuf:
-            recommendations:
-              - google.golang.org/protobuf
-            reason: "see https://developers.google.com/protocol-buffers/docs/reference/go/faq#modules"
-        - github.com/satori/go.uuid:
-            recommendations:
-              - github.com/google/uuid
-            reason: "satori's package is not maintained"
-        - github.com/gofrs/uuid:
-            recommendations:
-              - github.com/google/uuid
-            reason: "see recommendation from dev-infra team: https://confluence.gtforge.com/x/gQI6Aw"
-
-  govet:
-    # Enable all analyzers.
-    # Default: false
-    enable-all: true
-    # Disable analyzers by name.
-    # Run `go tool vet help` to see all analyzers.
-    # Default: []
-    disable:
-      - fieldalignment # too strict
-    # Settings per analyzer.
-    settings:
-      shadow:
-        # Whether to be strict about shadowing; can be noisy.
-        # Default: false
-        strict: true
-
-  nakedret:
-    # Make an issue if func has more lines of code than this setting, and it has naked returns.
-    # Default: 30
-    max-func-lines: 0
-
-  nolintlint:
-    # Exclude following linters from requiring an explanation.
-    # Default: []
-    allow-no-explanation: [ funlen, gocognit, lll ]
-    # Enable to require an explanation of nonzero length after each nolint directive.
-    # Default: false
-    require-explanation: true
-    # Enable to require nolint directives to mention the specific linter being suppressed.
-    # Default: false
-    require-specific: true
-
-  rowserrcheck:
-    # database/sql is always checked
-    # Default: []
-    packages:
-      - github.com/jmoiron/sqlx
-
-  tenv:
-    # The option `all` will run against whole test files (`_test.go`) regardless of method/function signatures.
-    # Otherwise, only methods that take `*testing.T`, `*testing.B`, and `testing.TB` as arguments are checked.
-    # Default: false
-    all: true
-
-  varcheck:
-    # Check usage of exported fields and variables.
-    # Default: false
-    exported-fields: false # default false # TODO: enable after fixing false positives
-
-
+version: "2"
 linters:
-  disable-all: true
+  default: none
  enable:
-    ## enabled by default
-    - errcheck # Errcheck is a program for checking for unchecked errors in go programs. These unchecked errors can be critical bugs in some cases
-    - gosimple # Linter for Go source code that specializes in simplifying a code
-    - govet # Vet examines Go source code and reports suspicious constructs, such as Printf calls whose arguments do not align with the format string
-    - ineffassign # Detects when assignments to existing variables are not used
-    - staticcheck # Staticcheck is a go vet on steroids, applying a ton of static analysis checks
-    - typecheck # Like the front-end of a Go compiler, parses and type-checks Go code
-    - unused # Checks Go code for unused constants, variables, functions and types
-    ## disabled by default
-    # - asasalint # Check for pass []any as any in variadic func(...any)
-    - asciicheck # Simple linter to check that your code does not contain non-ASCII identifiers
-    - bidichk # Checks for dangerous unicode character sequences
-    - bodyclose # checks whether HTTP response body is closed successfully
-    - contextcheck # check the function whether use a non-inherited context
-    - cyclop # checks function and package cyclomatic complexity
-    - dupl # Tool for code clone detection
-    - durationcheck # check for two durations multiplied together
-    - errname # Checks that sentinel errors are prefixed with the Err and error types are suffixed with the Error.
-    - errorlint # errorlint is a linter for that can be used to find code that will cause problems with the error wrapping scheme introduced in Go 1.13.
-    # Removed execinquery (deprecated). execinquery is a linter about query string checker in Query function which reads your Go src files and warning it finds
-    - exhaustive # check exhaustiveness of enum switch statements
-    - exportloopref # checks for pointers to enclosing loop variables
-    - forbidigo # Forbids identifiers
-    - funlen # Tool for detection of long functions
-    # - gochecknoglobals # check that no global variables exist
-    - gochecknoinits # Checks that no init functions are present in Go code
-    - gocognit # Computes and checks the cognitive complexity of functions
-    - goconst # Finds repeated strings that could be replaced by a constant
-    - gocritic # Provides diagnostics that check for bugs, performance and style issues.
-    - gocyclo # Computes and checks the cyclomatic complexity of functions
-    - godot # Check if comments end in a period
-    - goimports # In addition to fixing imports, goimports also formats your code in the same style as gofmt.
-    - gomoddirectives # Manage the use of 'replace', 'retract', and 'excludes' directives in go.mod.
-    - gomodguard # Allow and block list linter for direct Go module dependencies. This is different from depguard where there are different block types for example version constraints and module recommendations.
-    - goprintffuncname # Checks that printf-like functions are named with f at the end
-    - gosec # Inspects source code for security problems
-    - lll # Reports long lines
-    - makezero # Finds slice declarations with non-zero initial length
-    # - nakedret # Finds naked returns in functions greater than a specified function length
-    - mnd # An analyzer to detect magic numbers.
-    - nestif # Reports deeply nested if statements
-    - nilerr # Finds the code that returns nil even if it checks that the error is not nil.
-    - nilnil # Checks that there is no simultaneous return of nil error and an invalid value.
-    # - noctx # noctx finds sending http request without context.Context
-    - nolintlint # Reports ill-formed or insufficient nolint directives
-    # - nonamedreturns # Reports all named returns
-    - nosprintfhostport # Checks for misuse of Sprintf to construct a host with port in a URL.
-    - predeclared # find code that shadows one of Go's predeclared identifiers
-    - promlinter # Check Prometheus metrics naming via promlint
-    - revive # Fast, configurable, extensible, flexible, and beautiful linter for Go. Drop-in replacement of golint.
-    - rowserrcheck # checks whether Err of rows is checked successfully
-    - sqlclosecheck # Checks that sql.Rows and sql.Stmt are closed.
-    - stylecheck # Stylecheck is a replacement for golint
-    - tenv # tenv is analyzer that detects using os.Setenv instead of t.Setenv since Go1.17
-    - testpackage # linter that makes you use a separate _test package
-    - tparallel # tparallel detects inappropriate usage of t.Parallel() method in your Go test codes
-    - unconvert # Remove unnecessary type conversions
-    - unparam # Reports unused function parameters
-    - wastedassign # wastedassign finds wasted assignment statements.
-    - whitespace # Tool for detection of leading and trailing whitespace
-    ## you may want to enable
-    #- decorder # check declaration order and count of types, constants, variables and functions
-    #- exhaustruct # Checks if all structure fields are initialized
-    #- goheader # Checks is file header matches to pattern
-    #- ireturn # Accept Interfaces, Return Concrete Types
-    #- prealloc # [premature optimization, but can be used in some cases] Finds slice declarations that could potentially be preallocated
-    #- varnamelen # [great idea, but too many false positives] checks that the length of a variable's name matches its scope
-    #- wrapcheck # Checks that errors returned from external packages are wrapped
-    ## disabled
-    #- containedctx # containedctx is a linter that detects struct contained context.Context field
-    #- depguard # [replaced by gomodguard] Go linter that checks if package imports are in a list of acceptable packages
-    #- dogsled # Checks assignments with too many blank identifiers (e.g. x, _, _, _, := f())
-    #- errchkjson # [don't see profit + I'm against of omitting errors like in the first example https://github.com/breml/errchkjson] Checks types passed to the json encoding functions. Reports unsupported types and optionally reports occasions, where the check for the returned error can be omitted.
-    #- forcetypeassert # [replaced by errcheck] finds forced type assertions
-    #- gci # Gci controls golang package import order and makes it always deterministic.
-    #- godox # Tool for detection of FIXME, TODO and other comment keywords
-    #- goerr113 # [too strict] Golang linter to check the errors handling expressions
-    #- gofmt # [replaced by goimports] Gofmt checks whether code was gofmt-ed. By default this tool runs with -s option to check for code simplification
-    #- gofumpt # [replaced by goimports, gofumports is not available yet] Gofumpt checks whether code was gofumpt-ed.
-    #- grouper # An analyzer to analyze expression groups.
-    #- ifshort # Checks that your code uses short syntax for if-statements whenever possible
-    #- importas # Enforces consistent import aliases
-    #- maintidx # maintidx measures the maintainability index of each function.
-    #- misspell # [useless] Finds commonly misspelled English words in comments
-    #- nlreturn # [too strict and mostly code is not more readable] nlreturn checks for a new line before return and branch statements to increase code clarity
-    #- nosnakecase # Detects snake case of variable naming and function name. # TODO: maybe enable after https://github.com/sivchari/nosnakecase/issues/14
-    #- paralleltest # [too many false positives] paralleltest detects missing usage of t.Parallel() method in your Go test
-    #- tagliatelle # Checks the struct tags.
-    #- thelper # thelper detects golang test helpers without t.Helper() call and checks the consistency of test helpers
-    #- wsl # [too strict and mostly code is not more readable] Whitespace Linter - Forces you to use empty lines!
-    ## deprecated
-    #- exhaustivestruct # [deprecated, replaced by exhaustruct] Checks if all struct's fields are initialized
-    #- golint # [deprecated, replaced by revive] Golint differs from gofmt. Gofmt reformats Go source code, whereas golint prints out style mistakes
-    #- interfacer # [deprecated] Linter that suggests narrower interface types
-    #- maligned # [deprecated, replaced by govet fieldalignment] Tool to detect Go structs that would take less memory if their fields were sorted
-    #- scopelint # [deprecated, replaced by exportloopref] Scopelint checks for unpinned variables in go programs
-
-
-issues:
-  # Maximum count of issues with the same text.
-  # Set to 0 to disable.
-  # Default: 3
-  max-same-issues: 50
-
-  exclude-rules:
-    - source: "^//\\s*go:generate\\s"
-      linters: [ lll ]
-    - source: "(noinspection|TODO)"
-      linters: [ godot ]
-    - source: "//noinspection"
-      linters: [ gocritic ]
-    - source: "^\\s+if _, ok := err\\.\\([^.]+\\.InternalError\\); ok {"
-      linters: [ errorlint ]
-    - path: "_test\\.go"
-      linters:
-        - bodyclose
-        - dupl
+    - asciicheck
+    - bidichk
+    - bodyclose
+    - contextcheck
+    - cyclop
+    - dupl
+    - durationcheck
+    - errcheck
+    - errname
+    - errorlint
+    - exhaustive
+    - forbidigo
+    - funlen
+    - gochecknoinits
+    - gocognit
+    - goconst
+    - gocritic
+    - gocyclo
+    - godot
+    - gomoddirectives
+    - gomodguard
+    - goprintffuncname
+    - gosec
+    - govet
+    - ineffassign
+    - lll
+    - makezero
+    - mnd
+    - nestif
+    - nilerr
+    - nilnil
+    - nolintlint
+    - nosprintfhostport
+    - predeclared
+    - promlinter
+    - revive
+    - rowserrcheck
+    - sqlclosecheck
+    - staticcheck
+    - testpackage
+    - tparallel
+    - unconvert
+    - unparam
+    - unused
+    - usetesting
+    - wastedassign
+    - whitespace
+  settings:
+    cyclop:
+      max-complexity: 30
+      package-average: 10
+    errcheck:
+      check-type-assertions: true
+    funlen:
+      lines: 100
+      statements: 50
+    gocognit:
+      min-complexity: 20
+    gocritic:
+      settings:
+        captLocal:
+          paramsOnly: false
+        underef:
+          skipRecvDeref: false
+    gomodguard:
+      blocked:
+        modules:
+          - github.com/golang/protobuf:
+              recommendations:
+                - google.golang.org/protobuf
+              reason: see https://developers.google.com/protocol-buffers/docs/reference/go/faq#modules
+          - github.com/satori/go.uuid:
+              recommendations:
+                - github.com/google/uuid
+              reason: satori's package is not maintained
+          - github.com/gofrs/uuid:
+              recommendations:
+                - github.com/google/uuid
+              reason: 'see recommendation from dev-infra team: https://confluence.gtforge.com/x/gQI6Aw'
+    govet:
+      disable:
+        - fieldalignment
+      enable-all: true
+      settings:
+        shadow:
+          strict: true
+    mnd:
+      ignored-functions:
+        - os.Chmod
+        - os.Mkdir
+        - os.MkdirAll
+        - os.OpenFile
+        - os.WriteFile
+        - prometheus.ExponentialBuckets
+        - prometheus.ExponentialBucketsRange
+        - prometheus.LinearBuckets
+        - strconv.FormatFloat
+        - strconv.FormatInt
+        - strconv.FormatUint
+        - strconv.ParseFloat
+        - strconv.ParseInt
+        - strconv.ParseUint
+    nakedret:
+      max-func-lines: 0
+    nolintlint:
+      require-explanation: true
+      require-specific: true
+      allow-no-explanation:
        - funlen
-        - goconst
-        - gosec
-        - noctx
-        - wrapcheck
+        - gocognit
+        - lll
+    rowserrcheck:
+      packages:
+        - github.com/jmoiron/sqlx
+  exclusions:
+    generated: lax
+    presets:
+      - comments
+      - common-false-positives
+      - legacy
+      - std-error-handling
+    rules:
+      - linters:
+          - forbidigo
+          - mnd
+          - revive
+        path : ^examples/.*\.go$
+      - linters:
+          - lll
+        source: ^//\s*go:generate\s
+      - linters:
+          - godot
+        source: (noinspection|TODO)
+      - linters:
+          - gocritic
+        source: //noinspection
+      - linters:
+          - errorlint
+        source: ^\s+if _, ok := err\.\([^.]+\.InternalError\); ok {
+      - linters:
+          - bodyclose
+          - dupl
+          - funlen
+          - goconst
+          - gosec
+          - noctx
+          - wrapcheck
+          - staticcheck
+        path: _test\.go
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
+issues:
+  max-same-issues: 50
+formatters:
+  enable:
+    - goimports
+  exclusions:
+    generated: lax
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,22 +1,22 @@
 # Contributing Guidelines

 ## Overview
-Thank you for your interest in contributing to the "Go OpenAI" project! By following this guideline, we hope to ensure that your contributions are made smoothly and efficiently. The Go OpenAI project is licensed under the [Apache 2.0 License](https://github.com/sashabaranov/go-openai/blob/master/LICENSE), and we welcome contributions through GitHub pull requests.
+Thank you for your interest in contributing to the "Go OpenAI" project! By following this guideline, we hope to ensure that your contributions are made smoothly and efficiently. The Go OpenAI project is licensed under the [Apache 2.0 License](https://git.vaala.cloud/VaalaCat/go-openai/blob/master/LICENSE), and we welcome contributions through GitHub pull requests.

 ## Reporting Bugs
-If you discover a bug, first check the [GitHub Issues page](https://github.com/sashabaranov/go-openai/issues) to see if the issue has already been reported. If you're reporting a new issue, please use the "Bug report" template and provide detailed information about the problem, including steps to reproduce it.
+If you discover a bug, first check the [GitHub Issues page](https://git.vaala.cloud/VaalaCat/go-openai/issues) to see if the issue has already been reported. If you're reporting a new issue, please use the "Bug report" template and provide detailed information about the problem, including steps to reproduce it.

 ## Suggesting Features
-If you want to suggest a new feature or improvement, first check the [GitHub Issues page](https://github.com/sashabaranov/go-openai/issues) to ensure a similar suggestion hasn't already been made. Use the "Feature request" template to provide a detailed description of your suggestion.
+If you want to suggest a new feature or improvement, first check the [GitHub Issues page](https://git.vaala.cloud/VaalaCat/go-openai/issues) to ensure a similar suggestion hasn't already been made. Use the "Feature request" template to provide a detailed description of your suggestion.

 ## Reporting Vulnerabilities
-If you identify a security concern, please use the "Report a security vulnerability" template on the [GitHub Issues page](https://github.com/sashabaranov/go-openai/issues) to share the details. This report will only be viewable to repository maintainers. You will be credited if the advisory is published.
+If you identify a security concern, please use the "Report a security vulnerability" template on the [GitHub Issues page](https://git.vaala.cloud/VaalaCat/go-openai/issues) to share the details. This report will only be viewable to repository maintainers. You will be credited if the advisory is published.

 ## Questions for Users
-If you have questions, please utilize [StackOverflow](https://stackoverflow.com/) or the [GitHub Discussions page](https://github.com/sashabaranov/go-openai/discussions).
+If you have questions, please utilize [StackOverflow](https://stackoverflow.com/) or the [GitHub Discussions page](https://git.vaala.cloud/VaalaCat/go-openai/discussions).

 ## Contributing Code
-There might already be a similar pull requests submitted! Please search for [pull requests](https://github.com/sashabaranov/go-openai/pulls) before creating one.
+There might already be a similar pull requests submitted! Please search for [pull requests](https://git.vaala.cloud/VaalaCat/go-openai/pulls) before creating one.

 ### Requirements for Merging a Pull Request

--- a/README.md
+++ b/README.md
@@ -1,19 +1,19 @@
 # Go OpenAI
-[![Go Reference](https://pkg.go.dev/badge/github.com/sashabaranov/go-openai.svg)](https://pkg.go.dev/github.com/sashabaranov/go-openai)
-[![Go Report Card](https://goreportcard.com/badge/github.com/sashabaranov/go-openai)](https://goreportcard.com/report/github.com/sashabaranov/go-openai)
+[![Go Reference](https://pkg.go.dev/badge/git.vaala.cloud/VaalaCat/go-openai.svg)](https://pkg.go.dev/git.vaala.cloud/VaalaCat/go-openai)
+[![Go Report Card](https://goreportcard.com/badge/git.vaala.cloud/VaalaCat/go-openai)](https://goreportcard.com/report/git.vaala.cloud/VaalaCat/go-openai)
 [![codecov](https://codecov.io/gh/sashabaranov/go-openai/branch/master/graph/badge.svg?token=bCbIfHLIsW)](https://codecov.io/gh/sashabaranov/go-openai)

 This library provides unofficial Go clients for [OpenAI API](https://platform.openai.com/). We support: 

 * ChatGPT 4o, o1
 * GPT-3, GPT-4
-* DALL·E 2, DALL·E 3
+* DALL·E 2, DALL·E 3, GPT Image 1
 * Whisper

 ## Installation

 ```
-go get github.com/sashabaranov/go-openai
+go get git.vaala.cloud/VaalaCat/go-openai
 ```
 Currently, go-openai requires Go version 1.18 or greater.

@@ -28,7 +28,7 @@ package main
 import (
 	"context"
 	"fmt"
-	openai "github.com/sashabaranov/go-openai"
+	openai "git.vaala.cloud/VaalaCat/go-openai"
 )

 func main() {
@@ -80,7 +80,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	openai "github.com/sashabaranov/go-openai"
+	openai "git.vaala.cloud/VaalaCat/go-openai"
 )

 func main() {
@@ -133,7 +133,7 @@ package main
 import (
 	"context"
 	"fmt"
-	openai "github.com/sashabaranov/go-openai"
+	openai "git.vaala.cloud/VaalaCat/go-openai"
 )

 func main() {
@@ -166,7 +166,7 @@ import (
 	"context"
 	"fmt"
 	"io"
-	openai "github.com/sashabaranov/go-openai"
+	openai "git.vaala.cloud/VaalaCat/go-openai"
 )

 func main() {
@@ -215,7 +215,7 @@ import (
 	"context"
 	"fmt"

-	openai "github.com/sashabaranov/go-openai"
+	openai "git.vaala.cloud/VaalaCat/go-openai"
 )

 func main() {
@@ -247,7 +247,7 @@ import (
 	"fmt"
 	"os"

-	openai "github.com/sashabaranov/go-openai"
+	openai "git.vaala.cloud/VaalaCat/go-openai"
 )

 func main() {
@@ -288,7 +288,7 @@ import (
 	"context"
 	"encoding/base64"
 	"fmt"
-	openai "github.com/sashabaranov/go-openai"
+	openai "git.vaala.cloud/VaalaCat/go-openai"
 	"image/png"
 	"os"
 )
@@ -357,6 +357,66 @@ func main() {
 ```
 </details>

+<details>
+<summary>GPT Image 1 image generation</summary>
+
+```go
+package main
+
+import (
+	"context"
+	"encoding/base64"
+	"fmt"
+	"os"
+
+	openai "github.com/sashabaranov/go-openai"
+)
+
+func main() {
+	c := openai.NewClient("your token")
+	ctx := context.Background()
+
+	req := openai.ImageRequest{
+		Prompt:            "Parrot on a skateboard performing a trick. Large bold text \"SKATE MASTER\" banner at the bottom of the image. Cartoon style, natural light, high detail, 1:1 aspect ratio.",
+		Background:        openai.CreateImageBackgroundOpaque,
+		Model:             openai.CreateImageModelGptImage1,
+		Size:              openai.CreateImageSize1024x1024,
+		N:                 1,
+		Quality:           openai.CreateImageQualityLow,
+		OutputCompression: 100,
+		OutputFormat:      openai.CreateImageOutputFormatJPEG,
+		// Moderation: 		 openai.CreateImageModerationLow,
+		// User: 					 "",
+	}
+
+	resp, err := c.CreateImage(ctx, req)
+	if err != nil {
+		fmt.Printf("Image creation Image generation with GPT Image 1error: %v\n", err)
+		return
+	}
+
+	fmt.Println("Image Base64:", resp.Data[0].B64JSON)
+
+	// Decode the base64 data
+	imgBytes, err := base64.StdEncoding.DecodeString(resp.Data[0].B64JSON)
+	if err != nil {
+		fmt.Printf("Base64 decode error: %v\n", err)
+		return
+	}
+
+	// Write image to file
+	outputPath := "generated_image.jpg"
+	err = os.WriteFile(outputPath, imgBytes, 0644)
+	if err != nil {
+		fmt.Printf("Failed to write image file: %v\n", err)
+		return
+	}
+
+	fmt.Printf("The image was saved as %s\n", outputPath)
+}
+```
+</details>
+
 <details>
 <summary>Configuring proxy</summary>

@@ -376,7 +436,7 @@ config.HTTPClient = &http.Client{
 c := openai.NewClientWithConfig(config)
 ```

-See also: https://pkg.go.dev/github.com/sashabaranov/go-openai#ClientConfig
+See also: https://pkg.go.dev/git.vaala.cloud/VaalaCat/go-openai#ClientConfig
 </details>

 <details>
@@ -392,7 +452,7 @@ import (
 	"os"
 	"strings"

-	"github.com/sashabaranov/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai"
 )

 func main() {
@@ -446,7 +506,7 @@ import (
 	"context"
 	"fmt"

-	openai "github.com/sashabaranov/go-openai"
+	openai "git.vaala.cloud/VaalaCat/go-openai"
 )

 func main() {
@@ -492,7 +552,7 @@ package main
 import (
 	"context"
 	"log"
-	openai "github.com/sashabaranov/go-openai"
+	openai "git.vaala.cloud/VaalaCat/go-openai"

 )

@@ -549,7 +609,7 @@ import (
 	"context"
 	"fmt"

-	openai "github.com/sashabaranov/go-openai"
+	openai "git.vaala.cloud/VaalaCat/go-openai"
 )

 func main() {
@@ -680,7 +740,7 @@ package main
 import (
 	"context"
 	"fmt"
-	"github.com/sashabaranov/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai"
 )

 func main() {
@@ -755,8 +815,8 @@ import (
 	"fmt"
 	"log"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/jsonschema"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/jsonschema"
 )

 func main() {
@@ -828,7 +888,7 @@ Due to the factors mentioned above, different answers may be returned even for t
 By adopting these strategies, you can expect more consistent results.

 **Related Issues:**  
-[omitempty option of request struct will generate incorrect request when parameter is 0.](https://github.com/sashabaranov/go-openai/issues/9)
+[omitempty option of request struct will generate incorrect request when parameter is 0.](https://git.vaala.cloud/VaalaCat/go-openai/issues/9)

 ### Does Go OpenAI provide a method to count tokens?

@@ -839,15 +899,15 @@ For counting tokens, you might find the following links helpful:
 - [How to count tokens with tiktoken](https://github.com/openai/openai-cookbook/blob/main/examples/How_to_count_tokens_with_tiktoken.ipynb)

 **Related Issues:**  
-[Is it possible to join the implementation of GPT3 Tokenizer](https://github.com/sashabaranov/go-openai/issues/62)
+[Is it possible to join the implementation of GPT3 Tokenizer](https://git.vaala.cloud/VaalaCat/go-openai/issues/62)

 ## Contributing

-By following [Contributing Guidelines](https://github.com/sashabaranov/go-openai/blob/master/CONTRIBUTING.md), we hope to ensure that your contributions are made smoothly and efficiently.
+By following [Contributing Guidelines](https://git.vaala.cloud/VaalaCat/go-openai/blob/master/CONTRIBUTING.md), we hope to ensure that your contributions are made smoothly and efficiently.

 ## Thank you

-We want to take a moment to express our deepest gratitude to the [contributors](https://github.com/sashabaranov/go-openai/graphs/contributors) and sponsors of this project:
+We want to take a moment to express our deepest gratitude to the [contributors](https://git.vaala.cloud/VaalaCat/go-openai/graphs/contributors) and sponsors of this project:
 - [Carson Kahn](https://carsonkahn.com) of [Spindle AI](https://spindleai.com)

 To all of you: thank you. You've helped us achieve more than we ever imagined possible. Can't wait to see where we go next, together!
--- a/api_integration_test.go
+++ b/api_integration_test.go
@@ -10,9 +10,9 @@ import (
 	"os"
 	"testing"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
-	"github.com/sashabaranov/go-openai/jsonschema"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai/jsonschema"
 )

 func TestAPI(t *testing.T) {
--- a/assistant_test.go
+++ b/assistant_test.go
@@ -3,8 +3,8 @@ package openai_test
 import (
 	"context"

-	openai "github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	openai "git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"

 	"encoding/json"
 	"fmt"
--- a/audio.go
+++ b/audio.go
@@ -8,7 +8,7 @@ import (
 	"net/http"
 	"os"

-	utils "github.com/sashabaranov/go-openai/internal"
+	utils "git.vaala.cloud/VaalaCat/go-openai/internal"
 )

 // Whisper Defines the models provided by OpenAI to use when processing audio with OpenAI.
--- a/audio_api_test.go
+++ b/audio_api_test.go
@@ -12,9 +12,9 @@ import (
 	"strings"
 	"testing"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 // TestAudio Tests the transcription and translation endpoints of the API using the mocked server.
@@ -40,12 +40,9 @@ func TestAudio(t *testing.T) {

 	ctx := context.Background()

-	dir, cleanup := test.CreateTestDirectory(t)
-	defer cleanup()
-
 	for _, tc := range testcases {
 		t.Run(tc.name, func(t *testing.T) {
-			path := filepath.Join(dir, "fake.mp3")
+			path := filepath.Join(t.TempDir(), "fake.mp3")
 			test.CreateTestFile(t, path)

 			req := openai.AudioRequest{
@@ -90,12 +87,9 @@ func TestAudioWithOptionalArgs(t *testing.T) {

 	ctx := context.Background()

-	dir, cleanup := test.CreateTestDirectory(t)
-	defer cleanup()
-
 	for _, tc := range testcases {
 		t.Run(tc.name, func(t *testing.T) {
-			path := filepath.Join(dir, "fake.mp3")
+			path := filepath.Join(t.TempDir(), "fake.mp3")
 			test.CreateTestFile(t, path)

 			req := openai.AudioRequest{
--- a/audio_test.go
+++ b/audio_test.go
@@ -2,20 +2,21 @@ package openai //nolint:testpackage // testing private field

 import (
 	"bytes"
+	"context"
+	"errors"
 	"fmt"
 	"io"
+	"net/http"
 	"os"
 	"path/filepath"
 	"testing"

-	"github.com/sashabaranov/go-openai/internal/test"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 func TestAudioWithFailingFormBuilder(t *testing.T) {
-	dir, cleanup := test.CreateTestDirectory(t)
-	defer cleanup()
-	path := filepath.Join(dir, "fake.mp3")
+	path := filepath.Join(t.TempDir(), "fake.mp3")
 	test.CreateTestFile(t, path)

 	req := AudioRequest{
@@ -63,9 +64,7 @@ func TestAudioWithFailingFormBuilder(t *testing.T) {

 func TestCreateFileField(t *testing.T) {
 	t.Run("createFileField failing file", func(t *testing.T) {
-		dir, cleanup := test.CreateTestDirectory(t)
-		defer cleanup()
-		path := filepath.Join(dir, "fake.mp3")
+		path := filepath.Join(t.TempDir(), "fake.mp3")
 		test.CreateTestFile(t, path)

 		req := AudioRequest{
@@ -111,3 +110,131 @@ func TestCreateFileField(t *testing.T) {
 		checks.HasError(t, err, "createFileField using file should return error when open file fails")
 	})
 }
+
+// failingFormBuilder always returns an error when creating form files.
+type failingFormBuilder struct{ err error }
+
+func (f *failingFormBuilder) CreateFormFile(_ string, _ *os.File) error {
+	return f.err
+}
+
+func (f *failingFormBuilder) CreateFormFileReader(_ string, _ io.Reader, _ string) error {
+	return f.err
+}
+
+func (f *failingFormBuilder) WriteField(_, _ string) error {
+	return nil
+}
+
+func (f *failingFormBuilder) Close() error {
+	return nil
+}
+
+func (f *failingFormBuilder) FormDataContentType() string {
+	return "multipart/form-data"
+}
+
+// failingAudioRequestBuilder simulates an error during HTTP request construction.
+type failingAudioRequestBuilder struct{ err error }
+
+func (f *failingAudioRequestBuilder) Build(
+	_ context.Context,
+	_, _ string,
+	_ any,
+	_ http.Header,
+) (*http.Request, error) {
+	return nil, f.err
+}
+
+// errorHTTPClient always returns an error when making HTTP calls.
+type errorHTTPClient struct{ err error }
+
+func (e *errorHTTPClient) Do(_ *http.Request) (*http.Response, error) {
+	return nil, e.err
+}
+
+func TestCallAudioAPIMultipartFormError(t *testing.T) {
+	client := NewClient("test-token")
+	errForm := errors.New("mock create form file failure")
+	// Override form builder to force an error during multipart form creation.
+	client.createFormBuilder = func(_ io.Writer) utils.FormBuilder {
+		return &failingFormBuilder{err: errForm}
+	}
+
+	// Provide a reader so createFileField uses the reader path (no file open).
+	req := AudioRequest{FilePath: "fake.mp3", Reader: bytes.NewBuffer([]byte("dummy")), Model: Whisper1}
+	_, err := client.callAudioAPI(context.Background(), req, "transcriptions")
+	if err == nil {
+		t.Fatal("expected error but got none")
+	}
+	if !errors.Is(err, errForm) {
+		t.Errorf("expected error %v, got %v", errForm, err)
+	}
+}
+
+func TestCallAudioAPINewRequestError(t *testing.T) {
+	client := NewClient("test-token")
+	// Create a real temp file so multipart form succeeds.
+	tmp := t.TempDir()
+	path := filepath.Join(tmp, "file.mp3")
+	if err := os.WriteFile(path, []byte("content"), 0644); err != nil {
+		t.Fatalf("failed to write temp file: %v", err)
+	}
+
+	errBuild := errors.New("mock build failure")
+	client.requestBuilder = &failingAudioRequestBuilder{err: errBuild}
+
+	req := AudioRequest{FilePath: path, Model: Whisper1}
+	_, err := client.callAudioAPI(context.Background(), req, "translations")
+	if err == nil {
+		t.Fatal("expected error but got none")
+	}
+	if !errors.Is(err, errBuild) {
+		t.Errorf("expected error %v, got %v", errBuild, err)
+	}
+}
+
+func TestCallAudioAPISendRequestErrorJSON(t *testing.T) {
+	client := NewClient("test-token")
+	// Create a real temp file so multipart form succeeds.
+	tmp := t.TempDir()
+	path := filepath.Join(tmp, "file.mp3")
+	if err := os.WriteFile(path, []byte("content"), 0644); err != nil {
+		t.Fatalf("failed to write temp file: %v", err)
+	}
+
+	errHTTP := errors.New("mock HTTPClient failure")
+	// Override HTTP client to simulate a network error.
+	client.config.HTTPClient = &errorHTTPClient{err: errHTTP}
+
+	req := AudioRequest{FilePath: path, Model: Whisper1}
+	_, err := client.callAudioAPI(context.Background(), req, "transcriptions")
+	if err == nil {
+		t.Fatal("expected error but got none")
+	}
+	if !errors.Is(err, errHTTP) {
+		t.Errorf("expected error %v, got %v", errHTTP, err)
+	}
+}
+
+func TestCallAudioAPISendRequestErrorText(t *testing.T) {
+	client := NewClient("test-token")
+	tmp := t.TempDir()
+	path := filepath.Join(tmp, "file.mp3")
+	if err := os.WriteFile(path, []byte("content"), 0644); err != nil {
+		t.Fatalf("failed to write temp file: %v", err)
+	}
+
+	errHTTP := errors.New("mock HTTPClient failure")
+	client.config.HTTPClient = &errorHTTPClient{err: errHTTP}
+
+	// Use a non-JSON response format to exercise the text path.
+	req := AudioRequest{FilePath: path, Model: Whisper1, Format: AudioResponseFormatText}
+	_, err := client.callAudioAPI(context.Background(), req, "translations")
+	if err == nil {
+		t.Fatal("expected error but got none")
+	}
+	if !errors.Is(err, errHTTP) {
+		t.Errorf("expected error %v, got %v", errHTTP, err)
+	}
+}
--- a/batch_test.go
+++ b/batch_test.go
@@ -7,8 +7,8 @@ import (
 	"reflect"
 	"testing"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 func TestUploadBatchFile(t *testing.T) {
--- a/chat.go
+++ b/chat.go
@@ -14,6 +14,7 @@ const (
 	ChatMessageRoleAssistant = "assistant"
 	ChatMessageRoleFunction  = "function"
 	ChatMessageRoleTool      = "tool"
+	ChatMessageRoleDeveloper = "developer"
 )

 const chatCompletionsSuffix = "/chat/completions"
@@ -93,7 +94,7 @@ type ChatMessagePart struct {

 type ChatCompletionMessage struct {
 	Role         string `json:"role"`
-	Content      string `json:"content"`
+	Content      string `json:"content,omitempty"`
 	Refusal      string `json:"refusal,omitempty"`
 	MultiContent []ChatMessagePart

@@ -103,6 +104,12 @@ type ChatCompletionMessage struct {
 	// - https://github.com/openai/openai-cookbook/blob/main/examples/How_to_count_tokens_with_tiktoken.ipynb
 	Name string `json:"name,omitempty"`

+	// This property is used for the "reasoning" feature supported by deepseek-reasoner
+	// which is not in the official documentation.
+	// the doc from deepseek:
+	// - https://api-docs.deepseek.com/api/create-chat-completion#responses
+	ReasoningContent string `json:"reasoning_content,omitempty"`
+
 	FunctionCall *FunctionCall `json:"function_call,omitempty"`

 	// For Role=assistant prompts this may be set to the tool calls generated by the model, such as function calls.
@@ -118,41 +125,44 @@ func (m ChatCompletionMessage) MarshalJSON() ([]byte, error) {
 	}
 	if len(m.MultiContent) > 0 {
 		msg := struct {
-			Role         string            `json:"role"`
-			Content      string            `json:"-"`
-			Refusal      string            `json:"refusal,omitempty"`
-			MultiContent []ChatMessagePart `json:"content,omitempty"`
-			Name         string            `json:"name,omitempty"`
-			FunctionCall *FunctionCall     `json:"function_call,omitempty"`
-			ToolCalls    []ToolCall        `json:"tool_calls,omitempty"`
-			ToolCallID   string            `json:"tool_call_id,omitempty"`
+			Role             string            `json:"role"`
+			Content          string            `json:"-"`
+			Refusal          string            `json:"refusal,omitempty"`
+			MultiContent     []ChatMessagePart `json:"content,omitempty"`
+			Name             string            `json:"name,omitempty"`
+			ReasoningContent string            `json:"reasoning_content,omitempty"`
+			FunctionCall     *FunctionCall     `json:"function_call,omitempty"`
+			ToolCalls        []ToolCall        `json:"tool_calls,omitempty"`
+			ToolCallID       string            `json:"tool_call_id,omitempty"`
 		}(m)
 		return json.Marshal(msg)
 	}

 	msg := struct {
-		Role         string            `json:"role"`
-		Content      string            `json:"content"`
-		Refusal      string            `json:"refusal,omitempty"`
-		MultiContent []ChatMessagePart `json:"-"`
-		Name         string            `json:"name,omitempty"`
-		FunctionCall *FunctionCall     `json:"function_call,omitempty"`
-		ToolCalls    []ToolCall        `json:"tool_calls,omitempty"`
-		ToolCallID   string            `json:"tool_call_id,omitempty"`
+		Role             string            `json:"role"`
+		Content          string            `json:"content,omitempty"`
+		Refusal          string            `json:"refusal,omitempty"`
+		MultiContent     []ChatMessagePart `json:"-"`
+		Name             string            `json:"name,omitempty"`
+		ReasoningContent string            `json:"reasoning_content,omitempty"`
+		FunctionCall     *FunctionCall     `json:"function_call,omitempty"`
+		ToolCalls        []ToolCall        `json:"tool_calls,omitempty"`
+		ToolCallID       string            `json:"tool_call_id,omitempty"`
 	}(m)
 	return json.Marshal(msg)
 }

 func (m *ChatCompletionMessage) UnmarshalJSON(bs []byte) error {
 	msg := struct {
-		Role         string `json:"role"`
-		Content      string `json:"content"`
-		Refusal      string `json:"refusal,omitempty"`
-		MultiContent []ChatMessagePart
-		Name         string        `json:"name,omitempty"`
-		FunctionCall *FunctionCall `json:"function_call,omitempty"`
-		ToolCalls    []ToolCall    `json:"tool_calls,omitempty"`
-		ToolCallID   string        `json:"tool_call_id,omitempty"`
+		Role             string `json:"role"`
+		Content          string `json:"content"`
+		Refusal          string `json:"refusal,omitempty"`
+		MultiContent     []ChatMessagePart
+		Name             string        `json:"name,omitempty"`
+		ReasoningContent string        `json:"reasoning_content,omitempty"`
+		FunctionCall     *FunctionCall `json:"function_call,omitempty"`
+		ToolCalls        []ToolCall    `json:"tool_calls,omitempty"`
+		ToolCallID       string        `json:"tool_call_id,omitempty"`
 	}{}

 	if err := json.Unmarshal(bs, &msg); err == nil {
@@ -160,14 +170,15 @@ func (m *ChatCompletionMessage) UnmarshalJSON(bs []byte) error {
 		return nil
 	}
 	multiMsg := struct {
-		Role         string `json:"role"`
-		Content      string
-		Refusal      string            `json:"refusal,omitempty"`
-		MultiContent []ChatMessagePart `json:"content"`
-		Name         string            `json:"name,omitempty"`
-		FunctionCall *FunctionCall     `json:"function_call,omitempty"`
-		ToolCalls    []ToolCall        `json:"tool_calls,omitempty"`
-		ToolCallID   string            `json:"tool_call_id,omitempty"`
+		Role             string `json:"role"`
+		Content          string
+		Refusal          string            `json:"refusal,omitempty"`
+		MultiContent     []ChatMessagePart `json:"content"`
+		Name             string            `json:"name,omitempty"`
+		ReasoningContent string            `json:"reasoning_content,omitempty"`
+		FunctionCall     *FunctionCall     `json:"function_call,omitempty"`
+		ToolCalls        []ToolCall        `json:"tool_calls,omitempty"`
+		ToolCallID       string            `json:"tool_call_id,omitempty"`
 	}{}
 	if err := json.Unmarshal(bs, &multiMsg); err != nil {
 		return err
@@ -179,7 +190,7 @@ func (m *ChatCompletionMessage) UnmarshalJSON(bs []byte) error {
 type ToolCall struct {
 	// Index is not nil only in chat completion chunk object
 	Index    *int         `json:"index,omitempty"`
-	ID       string       `json:"id"`
+	ID       string       `json:"id,omitempty"`
 	Type     ToolType     `json:"type"`
 	Function FunctionCall `json:"function"`
 }
@@ -258,8 +269,19 @@ type ChatCompletionRequest struct {
 	// Store can be set to true to store the output of this completion request for use in distillations and evals.
 	// https://platform.openai.com/docs/api-reference/chat/create#chat-create-store
 	Store bool `json:"store,omitempty"`
+	// Controls effort on reasoning for reasoning models. It can be set to "low", "medium", or "high".
+	ReasoningEffort string `json:"reasoning_effort,omitempty"`
 	// Metadata to store with the completion.
-	Metadata map[string]string `json:"metadata,omitempty"`
+	Metadata         map[string]string `json:"metadata,omitempty"`
+	IncludeReasoning *bool             `json:"include_reasoning,omitempty"`
+	ReasoningFormat  *string           `json:"reasoning_format,omitempty"`
+	// Configuration for a predicted output.
+	Prediction *Prediction `json:"prediction,omitempty"`
+	// ChatTemplateKwargs provides a way to add non-standard parameters to the request body.
+	// Additional kwargs to pass to the template renderer. Will be accessible by the chat template.
+	// Such as think mode for qwen3. "chat_template_kwargs": {"enable_thinking": false}
+	// https://qwen.readthedocs.io/en/latest/deployment/vllm.html#thinking-non-thinking-modes
+	ChatTemplateKwargs map[string]any `json:"chat_template_kwargs,omitempty"`
 }

 type StreamOptions struct {
@@ -327,6 +349,11 @@ type LogProbs struct {
 	Content []LogProb `json:"content"`
 }

+type Prediction struct {
+	Content string `json:"content"`
+	Type    string `json:"type"`
+}
+
 type FinishReason string

 const (
@@ -390,7 +417,8 @@ func (c *Client) CreateChatCompletion(
 		return
 	}

-	if err = validateRequestForO1Models(request); err != nil {
+	reasoningValidator := NewReasoningValidator()
+	if err = reasoningValidator.Validate(request); err != nil {
 		return
 	}

--- a/chat_stream.go
+++ b/chat_stream.go
@@ -11,6 +11,12 @@ type ChatCompletionStreamChoiceDelta struct {
 	FunctionCall *FunctionCall `json:"function_call,omitempty"`
 	ToolCalls    []ToolCall    `json:"tool_calls,omitempty"`
 	Refusal      string        `json:"refusal,omitempty"`
+
+	// This property is used for the "reasoning" feature supported by deepseek-reasoner
+	// which is not in the official documentation.
+	// the doc from deepseek:
+	// - https://api-docs.deepseek.com/api/create-chat-completion#responses
+	ReasoningContent string `json:"reasoning_content,omitempty"`
 }

 type ChatCompletionStreamChoiceLogprobs struct {
@@ -80,7 +86,8 @@ func (c *Client) CreateChatCompletionStream(
 	}

 	request.Stream = true
-	if err = validateRequestForO1Models(request); err != nil {
+	reasoningValidator := NewReasoningValidator()
+	if err = reasoningValidator.Validate(request); err != nil {
 		return
 	}

--- a/chat_stream_test.go
+++ b/chat_stream_test.go
@@ -10,8 +10,8 @@ import (
 	"strconv"
 	"testing"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 func TestChatCompletionsStreamWrongModel(t *testing.T) {
@@ -792,6 +792,223 @@ func compareChatResponses(r1, r2 openai.ChatCompletionStreamResponse) bool {
 	return true
 }

+func TestCreateChatCompletionStreamWithReasoningModel(t *testing.T) {
+	client, server, teardown := setupOpenAITestServer()
+	defer teardown()
+	server.RegisterHandler("/v1/chat/completions", func(w http.ResponseWriter, _ *http.Request) {
+		w.Header().Set("Content-Type", "text/event-stream")
+
+		dataBytes := []byte{}
+
+		//nolint:lll
+		dataBytes = append(dataBytes, []byte(`data: {"id":"1","object":"chat.completion.chunk","created":1729585728,"model":"o3-mini-2025-01-31","system_fingerprint":"fp_mini","choices":[{"index":0,"delta":{"role":"assistant","content":""},"finish_reason":null}]}`)...)
+		dataBytes = append(dataBytes, []byte("\n\n")...)
+
+		//nolint:lll
+		dataBytes = append(dataBytes, []byte(`data: {"id":"2","object":"chat.completion.chunk","created":1729585728,"model":"o3-mini-2025-01-31","system_fingerprint":"fp_mini","choices":[{"index":0,"delta":{"content":"Hello"},"finish_reason":null}]}`)...)
+		dataBytes = append(dataBytes, []byte("\n\n")...)
+
+		//nolint:lll
+		dataBytes = append(dataBytes, []byte(`data: {"id":"3","object":"chat.completion.chunk","created":1729585728,"model":"o3-mini-2025-01-31","system_fingerprint":"fp_mini","choices":[{"index":0,"delta":{"content":" from"},"finish_reason":null}]}`)...)
+		dataBytes = append(dataBytes, []byte("\n\n")...)
+
+		//nolint:lll
+		dataBytes = append(dataBytes, []byte(`data: {"id":"4","object":"chat.completion.chunk","created":1729585728,"model":"o3-mini-2025-01-31","system_fingerprint":"fp_mini","choices":[{"index":0,"delta":{"content":" O3Mini"},"finish_reason":null}]}`)...)
+		dataBytes = append(dataBytes, []byte("\n\n")...)
+
+		//nolint:lll
+		dataBytes = append(dataBytes, []byte(`data: {"id":"5","object":"chat.completion.chunk","created":1729585728,"model":"o3-mini-2025-01-31","system_fingerprint":"fp_mini","choices":[{"index":0,"delta":{},"finish_reason":"stop"}]}`)...)
+		dataBytes = append(dataBytes, []byte("\n\n")...)
+
+		dataBytes = append(dataBytes, []byte("data: [DONE]\n\n")...)
+
+		_, err := w.Write(dataBytes)
+		checks.NoError(t, err, "Write error")
+	})
+
+	stream, err := client.CreateChatCompletionStream(context.Background(), openai.ChatCompletionRequest{
+		MaxCompletionTokens: 2000,
+		Model:               openai.O3Mini20250131,
+		Messages: []openai.ChatCompletionMessage{
+			{
+				Role:    openai.ChatMessageRoleUser,
+				Content: "Hello!",
+			},
+		},
+		Stream: true,
+	})
+	checks.NoError(t, err, "CreateCompletionStream returned error")
+	defer stream.Close()
+
+	expectedResponses := []openai.ChatCompletionStreamResponse{
+		{
+			ID:                "1",
+			Object:            "chat.completion.chunk",
+			Created:           1729585728,
+			Model:             openai.O3Mini20250131,
+			SystemFingerprint: "fp_mini",
+			Choices: []openai.ChatCompletionStreamChoice{
+				{
+					Index: 0,
+					Delta: openai.ChatCompletionStreamChoiceDelta{
+						Role: "assistant",
+					},
+				},
+			},
+		},
+		{
+			ID:                "2",
+			Object:            "chat.completion.chunk",
+			Created:           1729585728,
+			Model:             openai.O3Mini20250131,
+			SystemFingerprint: "fp_mini",
+			Choices: []openai.ChatCompletionStreamChoice{
+				{
+					Index: 0,
+					Delta: openai.ChatCompletionStreamChoiceDelta{
+						Content: "Hello",
+					},
+				},
+			},
+		},
+		{
+			ID:                "3",
+			Object:            "chat.completion.chunk",
+			Created:           1729585728,
+			Model:             openai.O3Mini20250131,
+			SystemFingerprint: "fp_mini",
+			Choices: []openai.ChatCompletionStreamChoice{
+				{
+					Index: 0,
+					Delta: openai.ChatCompletionStreamChoiceDelta{
+						Content: " from",
+					},
+				},
+			},
+		},
+		{
+			ID:                "4",
+			Object:            "chat.completion.chunk",
+			Created:           1729585728,
+			Model:             openai.O3Mini20250131,
+			SystemFingerprint: "fp_mini",
+			Choices: []openai.ChatCompletionStreamChoice{
+				{
+					Index: 0,
+					Delta: openai.ChatCompletionStreamChoiceDelta{
+						Content: " O3Mini",
+					},
+				},
+			},
+		},
+		{
+			ID:                "5",
+			Object:            "chat.completion.chunk",
+			Created:           1729585728,
+			Model:             openai.O3Mini20250131,
+			SystemFingerprint: "fp_mini",
+			Choices: []openai.ChatCompletionStreamChoice{
+				{
+					Index:        0,
+					Delta:        openai.ChatCompletionStreamChoiceDelta{},
+					FinishReason: "stop",
+				},
+			},
+		},
+	}
+
+	for ix, expectedResponse := range expectedResponses {
+		b, _ := json.Marshal(expectedResponse)
+		t.Logf("%d: %s", ix, string(b))
+
+		receivedResponse, streamErr := stream.Recv()
+		checks.NoError(t, streamErr, "stream.Recv() failed")
+		if !compareChatResponses(expectedResponse, receivedResponse) {
+			t.Errorf("Stream response %v is %v, expected %v", ix, receivedResponse, expectedResponse)
+		}
+	}
+
+	_, streamErr := stream.Recv()
+	if !errors.Is(streamErr, io.EOF) {
+		t.Errorf("stream.Recv() did not return EOF in the end: %v", streamErr)
+	}
+}
+
+func TestCreateChatCompletionStreamReasoningValidatorFails(t *testing.T) {
+	client, _, _ := setupOpenAITestServer()
+
+	stream, err := client.CreateChatCompletionStream(context.Background(), openai.ChatCompletionRequest{
+		MaxTokens: 100, // This will trigger the validator to fail
+		Model:     openai.O3Mini,
+		Messages: []openai.ChatCompletionMessage{
+			{
+				Role:    openai.ChatMessageRoleUser,
+				Content: "Hello!",
+			},
+		},
+		Stream: true,
+	})
+
+	if stream != nil {
+		t.Error("Expected nil stream when validation fails")
+		stream.Close()
+	}
+
+	if !errors.Is(err, openai.ErrReasoningModelMaxTokensDeprecated) {
+		t.Errorf("Expected ErrReasoningModelMaxTokensDeprecated, got: %v", err)
+	}
+}
+
+func TestCreateChatCompletionStreamO3ReasoningValidatorFails(t *testing.T) {
+	client, _, _ := setupOpenAITestServer()
+
+	stream, err := client.CreateChatCompletionStream(context.Background(), openai.ChatCompletionRequest{
+		MaxTokens: 100, // This will trigger the validator to fail
+		Model:     openai.O3,
+		Messages: []openai.ChatCompletionMessage{
+			{
+				Role:    openai.ChatMessageRoleUser,
+				Content: "Hello!",
+			},
+		},
+		Stream: true,
+	})
+
+	if stream != nil {
+		t.Error("Expected nil stream when validation fails")
+		stream.Close()
+	}
+
+	if !errors.Is(err, openai.ErrReasoningModelMaxTokensDeprecated) {
+		t.Errorf("Expected ErrReasoningModelMaxTokensDeprecated for O3, got: %v", err)
+	}
+}
+
+func TestCreateChatCompletionStreamO4MiniReasoningValidatorFails(t *testing.T) {
+	client, _, _ := setupOpenAITestServer()
+
+	stream, err := client.CreateChatCompletionStream(context.Background(), openai.ChatCompletionRequest{
+		MaxTokens: 100, // This will trigger the validator to fail
+		Model:     openai.O4Mini,
+		Messages: []openai.ChatCompletionMessage{
+			{
+				Role:    openai.ChatMessageRoleUser,
+				Content: "Hello!",
+			},
+		},
+		Stream: true,
+	})
+
+	if stream != nil {
+		t.Error("Expected nil stream when validation fails")
+		stream.Close()
+	}
+
+	if !errors.Is(err, openai.ErrReasoningModelMaxTokensDeprecated) {
+		t.Errorf("Expected ErrReasoningModelMaxTokensDeprecated for O4Mini, got: %v", err)
+	}
+}
+
 func compareChatStreamResponseChoices(c1, c2 openai.ChatCompletionStreamChoice) bool {
 	if c1.Index != c2.Index {
 		return false
--- a/chat_test.go
+++ b/chat_test.go
@@ -12,9 +12,9 @@ import (
 	"testing"
 	"time"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
-	"github.com/sashabaranov/go-openai/jsonschema"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai/jsonschema"
 )

 const (
@@ -64,7 +64,7 @@ func TestO1ModelsChatCompletionsDeprecatedFields(t *testing.T) {
 				MaxTokens: 5,
 				Model:     openai.O1Preview,
 			},
-			expectedError: openai.ErrO1MaxTokensDeprecated,
+			expectedError: openai.ErrReasoningModelMaxTokensDeprecated,
 		},
 		{
 			name: "o1-mini_MaxTokens_deprecated",
@@ -72,7 +72,7 @@ func TestO1ModelsChatCompletionsDeprecatedFields(t *testing.T) {
 				MaxTokens: 5,
 				Model:     openai.O1Mini,
 			},
-			expectedError: openai.ErrO1MaxTokensDeprecated,
+			expectedError: openai.ErrReasoningModelMaxTokensDeprecated,
 		},
 	}

@@ -104,41 +104,7 @@ func TestO1ModelsChatCompletionsBetaLimitations(t *testing.T) {
 				LogProbs:            true,
 				Model:               openai.O1Preview,
 			},
-			expectedError: openai.ErrO1BetaLimitationsLogprobs,
-		},
-		{
-			name: "message_type_unsupported",
-			in: openai.ChatCompletionRequest{
-				MaxCompletionTokens: 1000,
-				Model:               openai.O1Mini,
-				Messages: []openai.ChatCompletionMessage{
-					{
-						Role: openai.ChatMessageRoleSystem,
-					},
-				},
-			},
-			expectedError: openai.ErrO1BetaLimitationsMessageTypes,
-		},
-		{
-			name: "tool_unsupported",
-			in: openai.ChatCompletionRequest{
-				MaxCompletionTokens: 1000,
-				Model:               openai.O1Mini,
-				Messages: []openai.ChatCompletionMessage{
-					{
-						Role: openai.ChatMessageRoleUser,
-					},
-					{
-						Role: openai.ChatMessageRoleAssistant,
-					},
-				},
-				Tools: []openai.Tool{
-					{
-						Type: openai.ToolTypeFunction,
-					},
-				},
-			},
-			expectedError: openai.ErrO1BetaLimitationsTools,
+			expectedError: openai.ErrReasoningModelLimitationsLogprobs,
 		},
 		{
 			name: "set_temperature_unsupported",
@@ -155,7 +121,7 @@ func TestO1ModelsChatCompletionsBetaLimitations(t *testing.T) {
 				},
 				Temperature: float32(2),
 			},
-			expectedError: openai.ErrO1BetaLimitationsOther,
+			expectedError: openai.ErrReasoningModelLimitationsOther,
 		},
 		{
 			name: "set_top_unsupported",
@@ -173,7 +139,7 @@ func TestO1ModelsChatCompletionsBetaLimitations(t *testing.T) {
 				Temperature: float32(1),
 				TopP:        float32(0.1),
 			},
-			expectedError: openai.ErrO1BetaLimitationsOther,
+			expectedError: openai.ErrReasoningModelLimitationsOther,
 		},
 		{
 			name: "set_n_unsupported",
@@ -192,7 +158,7 @@ func TestO1ModelsChatCompletionsBetaLimitations(t *testing.T) {
 				TopP:        float32(1),
 				N:           2,
 			},
-			expectedError: openai.ErrO1BetaLimitationsOther,
+			expectedError: openai.ErrReasoningModelLimitationsOther,
 		},
 		{
 			name: "set_presence_penalty_unsupported",
@@ -209,7 +175,7 @@ func TestO1ModelsChatCompletionsBetaLimitations(t *testing.T) {
 				},
 				PresencePenalty: float32(1),
 			},
-			expectedError: openai.ErrO1BetaLimitationsOther,
+			expectedError: openai.ErrReasoningModelLimitationsOther,
 		},
 		{
 			name: "set_frequency_penalty_unsupported",
@@ -226,7 +192,127 @@ func TestO1ModelsChatCompletionsBetaLimitations(t *testing.T) {
 				},
 				FrequencyPenalty: float32(0.1),
 			},
-			expectedError: openai.ErrO1BetaLimitationsOther,
+			expectedError: openai.ErrReasoningModelLimitationsOther,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			config := openai.DefaultConfig("whatever")
+			config.BaseURL = "http://localhost/v1"
+			client := openai.NewClientWithConfig(config)
+			ctx := context.Background()
+
+			_, err := client.CreateChatCompletion(ctx, tt.in)
+			checks.HasError(t, err)
+			msg := fmt.Sprintf("CreateChatCompletion should return wrong model error, returned: %s", err)
+			checks.ErrorIs(t, err, tt.expectedError, msg)
+		})
+	}
+}
+
+func TestO3ModelsChatCompletionsBetaLimitations(t *testing.T) {
+	tests := []struct {
+		name          string
+		in            openai.ChatCompletionRequest
+		expectedError error
+	}{
+		{
+			name: "log_probs_unsupported",
+			in: openai.ChatCompletionRequest{
+				MaxCompletionTokens: 1000,
+				LogProbs:            true,
+				Model:               openai.O3Mini,
+			},
+			expectedError: openai.ErrReasoningModelLimitationsLogprobs,
+		},
+		{
+			name: "set_temperature_unsupported",
+			in: openai.ChatCompletionRequest{
+				MaxCompletionTokens: 1000,
+				Model:               openai.O3Mini,
+				Messages: []openai.ChatCompletionMessage{
+					{
+						Role: openai.ChatMessageRoleUser,
+					},
+					{
+						Role: openai.ChatMessageRoleAssistant,
+					},
+				},
+				Temperature: float32(2),
+			},
+			expectedError: openai.ErrReasoningModelLimitationsOther,
+		},
+		{
+			name: "set_top_unsupported",
+			in: openai.ChatCompletionRequest{
+				MaxCompletionTokens: 1000,
+				Model:               openai.O3Mini,
+				Messages: []openai.ChatCompletionMessage{
+					{
+						Role: openai.ChatMessageRoleUser,
+					},
+					{
+						Role: openai.ChatMessageRoleAssistant,
+					},
+				},
+				Temperature: float32(1),
+				TopP:        float32(0.1),
+			},
+			expectedError: openai.ErrReasoningModelLimitationsOther,
+		},
+		{
+			name: "set_n_unsupported",
+			in: openai.ChatCompletionRequest{
+				MaxCompletionTokens: 1000,
+				Model:               openai.O3Mini,
+				Messages: []openai.ChatCompletionMessage{
+					{
+						Role: openai.ChatMessageRoleUser,
+					},
+					{
+						Role: openai.ChatMessageRoleAssistant,
+					},
+				},
+				Temperature: float32(1),
+				TopP:        float32(1),
+				N:           2,
+			},
+			expectedError: openai.ErrReasoningModelLimitationsOther,
+		},
+		{
+			name: "set_presence_penalty_unsupported",
+			in: openai.ChatCompletionRequest{
+				MaxCompletionTokens: 1000,
+				Model:               openai.O3Mini,
+				Messages: []openai.ChatCompletionMessage{
+					{
+						Role: openai.ChatMessageRoleUser,
+					},
+					{
+						Role: openai.ChatMessageRoleAssistant,
+					},
+				},
+				PresencePenalty: float32(1),
+			},
+			expectedError: openai.ErrReasoningModelLimitationsOther,
+		},
+		{
+			name: "set_frequency_penalty_unsupported",
+			in: openai.ChatCompletionRequest{
+				MaxCompletionTokens: 1000,
+				Model:               openai.O3Mini,
+				Messages: []openai.ChatCompletionMessage{
+					{
+						Role: openai.ChatMessageRoleUser,
+					},
+					{
+						Role: openai.ChatMessageRoleAssistant,
+					},
+				},
+				FrequencyPenalty: float32(0.1),
+			},
+			expectedError: openai.ErrReasoningModelLimitationsOther,
 		},
 	}

@@ -308,6 +394,40 @@ func TestO1ModelChatCompletions(t *testing.T) {
 	checks.NoError(t, err, "CreateChatCompletion error")
 }

+func TestO3ModelChatCompletions(t *testing.T) {
+	client, server, teardown := setupOpenAITestServer()
+	defer teardown()
+	server.RegisterHandler("/v1/chat/completions", handleChatCompletionEndpoint)
+	_, err := client.CreateChatCompletion(context.Background(), openai.ChatCompletionRequest{
+		Model:               openai.O3Mini,
+		MaxCompletionTokens: 1000,
+		Messages: []openai.ChatCompletionMessage{
+			{
+				Role:    openai.ChatMessageRoleUser,
+				Content: "Hello!",
+			},
+		},
+	})
+	checks.NoError(t, err, "CreateChatCompletion error")
+}
+
+func TestDeepseekR1ModelChatCompletions(t *testing.T) {
+	client, server, teardown := setupOpenAITestServer()
+	defer teardown()
+	server.RegisterHandler("/v1/chat/completions", handleDeepseekR1ChatCompletionEndpoint)
+	_, err := client.CreateChatCompletion(context.Background(), openai.ChatCompletionRequest{
+		Model:               "deepseek-reasoner",
+		MaxCompletionTokens: 100,
+		Messages: []openai.ChatCompletionMessage{
+			{
+				Role:    openai.ChatMessageRoleUser,
+				Content: "Hello!",
+			},
+		},
+	})
+	checks.NoError(t, err, "CreateChatCompletion error")
+}
+
 // TestCompletions Tests the completions endpoint of the API using the mocked server.
 func TestChatCompletionsWithHeaders(t *testing.T) {
 	client, server, teardown := setupOpenAITestServer()
@@ -631,7 +751,7 @@ func TestMultipartChatMessageSerialization(t *testing.T) {
 		t.Fatalf("Unexpected error")
 	}
 	res = strings.ReplaceAll(string(s), " ", "")
-	if res != `{"role":"user","content":""}` {
+	if res != `{"role":"user"}` {
 		t.Fatalf("invalid message: %s", string(s))
 	}
 }
@@ -719,6 +839,68 @@ func handleChatCompletionEndpoint(w http.ResponseWriter, r *http.Request) {
 	fmt.Fprintln(w, string(resBytes))
 }

+func handleDeepseekR1ChatCompletionEndpoint(w http.ResponseWriter, r *http.Request) {
+	var err error
+	var resBytes []byte
+
+	// completions only accepts POST requests
+	if r.Method != "POST" {
+		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+	}
+	var completionReq openai.ChatCompletionRequest
+	if completionReq, err = getChatCompletionBody(r); err != nil {
+		http.Error(w, "could not read request", http.StatusInternalServerError)
+		return
+	}
+	res := openai.ChatCompletionResponse{
+		ID:      strconv.Itoa(int(time.Now().Unix())),
+		Object:  "test-object",
+		Created: time.Now().Unix(),
+		// would be nice to validate Model during testing, but
+		// this may not be possible with how much upkeep
+		// would be required / wouldn't make much sense
+		Model: completionReq.Model,
+	}
+	// create completions
+	n := completionReq.N
+	if n == 0 {
+		n = 1
+	}
+	if completionReq.MaxCompletionTokens == 0 {
+		completionReq.MaxCompletionTokens = 1000
+	}
+	for i := 0; i < n; i++ {
+		reasoningContent := "User says hello! And I need to reply"
+		completionStr := strings.Repeat("a", completionReq.MaxCompletionTokens-numTokens(reasoningContent))
+		res.Choices = append(res.Choices, openai.ChatCompletionChoice{
+			Message: openai.ChatCompletionMessage{
+				Role:             openai.ChatMessageRoleAssistant,
+				ReasoningContent: reasoningContent,
+				Content:          completionStr,
+			},
+			Index: i,
+		})
+	}
+	inputTokens := numTokens(completionReq.Messages[0].Content) * n
+	completionTokens := completionReq.MaxTokens * n
+	res.Usage = openai.Usage{
+		PromptTokens:     inputTokens,
+		CompletionTokens: completionTokens,
+		TotalTokens:      inputTokens + completionTokens,
+	}
+	resBytes, _ = json.Marshal(res)
+	w.Header().Set(xCustomHeader, xCustomHeaderValue)
+	for k, v := range rateLimitHeaders {
+		switch val := v.(type) {
+		case int:
+			w.Header().Set(k, strconv.Itoa(val))
+		default:
+			w.Header().Set(k, fmt.Sprintf("%s", v))
+		}
+	}
+	fmt.Fprintln(w, string(resBytes))
+}
+
 // getChatCompletionBody Returns the body of the request to create a completion.
 func getChatCompletionBody(r *http.Request) (openai.ChatCompletionRequest, error) {
 	completion := openai.ChatCompletionRequest{}
--- a/client.go
+++ b/client.go
@@ -10,7 +10,7 @@ import (
 	"net/url"
 	"strings"

-	utils "github.com/sashabaranov/go-openai/internal"
+	utils "git.vaala.cloud/VaalaCat/go-openai/internal"
 )

 // Client is OpenAI GPT-3 API client.
@@ -182,13 +182,21 @@ func sendRequestStream[T streamable](client *Client, req *http.Request) (*stream

 func (c *Client) setCommonHeaders(req *http.Request) {
 	// https://learn.microsoft.com/en-us/azure/cognitive-services/openai/reference#authentication
-	// Azure API Key authentication
-	if c.config.APIType == APITypeAzure || c.config.APIType == APITypeCloudflareAzure {
+	switch c.config.APIType {
+	case APITypeAzure, APITypeCloudflareAzure:
+		// Azure API Key authentication
 		req.Header.Set(AzureAPIKeyHeader, c.config.authToken)
-	} else if c.config.authToken != "" {
-		// OpenAI or Azure AD authentication
-		req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", c.config.authToken))
+	case APITypeAnthropic:
+		// https://docs.anthropic.com/en/api/versioning
+		req.Header.Set("anthropic-version", c.config.APIVersion)
+	case APITypeOpenAI, APITypeAzureAD:
+		fallthrough
+	default:
+		if c.config.authToken != "" {
+			req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", c.config.authToken))
+		}
 	}
+
 	if c.config.OrgID != "" {
 		req.Header.Set("OpenAI-Organization", c.config.OrgID)
 	}
--- a/client_test.go
+++ b/client_test.go
@@ -10,8 +10,8 @@ import (
 	"reflect"
 	"testing"

-	"github.com/sashabaranov/go-openai/internal/test"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 var errTestRequestBuilderFailed = errors.New("test request builder failed")
@@ -39,6 +39,21 @@ func TestClient(t *testing.T) {
 	}
 }

+func TestSetCommonHeadersAnthropic(t *testing.T) {
+	config := DefaultAnthropicConfig("mock-token", "")
+	client := NewClientWithConfig(config)
+	req, err := http.NewRequest("GET", "http://example.com", nil)
+	if err != nil {
+		t.Fatalf("Failed to create request: %v", err)
+	}
+
+	client.setCommonHeaders(req)
+
+	if got := req.Header.Get("anthropic-version"); got != AnthropicAPIVersion {
+		t.Errorf("Expected anthropic-version header to be %q, got %q", AnthropicAPIVersion, got)
+	}
+}
+
 func TestDecodeResponse(t *testing.T) {
 	stringInput := ""

--- a/common.go
+++ b/common.go
@@ -13,8 +13,10 @@ type Usage struct {

 // CompletionTokensDetails Breakdown of tokens used in a completion.
 type CompletionTokensDetails struct {
-	AudioTokens     int `json:"audio_tokens"`
-	ReasoningTokens int `json:"reasoning_tokens"`
+	AudioTokens              int `json:"audio_tokens"`
+	ReasoningTokens          int `json:"reasoning_tokens"`
+	AcceptedPredictionTokens int `json:"accepted_prediction_tokens"`
+	RejectedPredictionTokens int `json:"rejected_prediction_tokens"`
 }

 // PromptTokensDetails Breakdown of tokens used in the prompt.
--- a/completion.go
+++ b/completion.go
@@ -2,59 +2,61 @@ package openai

 import (
 	"context"
-	"errors"
 	"net/http"
 )

-var (
-	ErrO1MaxTokensDeprecated                   = errors.New("this model is not supported MaxTokens, please use MaxCompletionTokens")                               //nolint:lll
-	ErrCompletionUnsupportedModel              = errors.New("this model is not supported with this method, please use CreateChatCompletion client method instead") //nolint:lll
-	ErrCompletionStreamNotSupported            = errors.New("streaming is not supported with this method, please use CreateCompletionStream")                      //nolint:lll
-	ErrCompletionRequestPromptTypeNotSupported = errors.New("the type of CompletionRequest.Prompt only supports string and []string")                              //nolint:lll
-)
-
-var (
-	ErrO1BetaLimitationsMessageTypes = errors.New("this model has beta-limitations, user and assistant messages only, system messages are not supported")                                  //nolint:lll
-	ErrO1BetaLimitationsTools        = errors.New("this model has beta-limitations, tools, function calling, and response format parameters are not supported")                            //nolint:lll
-	ErrO1BetaLimitationsLogprobs     = errors.New("this model has beta-limitations, logprobs not supported")                                                                               //nolint:lll
-	ErrO1BetaLimitationsOther        = errors.New("this model has beta-limitations, temperature, top_p and n are fixed at 1, while presence_penalty and frequency_penalty are fixed at 0") //nolint:lll
-)
-
 // GPT3 Defines the models provided by OpenAI to use when generating
 // completions from OpenAI.
 // GPT3 Models are designed for text-based tasks. For code-specific
 // tasks, please refer to the Codex series of models.
 const (
-	O1Mini                = "o1-mini"
-	O1Mini20240912        = "o1-mini-2024-09-12"
-	O1Preview             = "o1-preview"
-	O1Preview20240912     = "o1-preview-2024-09-12"
-	GPT432K0613           = "gpt-4-32k-0613"
-	GPT432K0314           = "gpt-4-32k-0314"
-	GPT432K               = "gpt-4-32k"
-	GPT40613              = "gpt-4-0613"
-	GPT40314              = "gpt-4-0314"
-	GPT4o                 = "gpt-4o"
-	GPT4o20240513         = "gpt-4o-2024-05-13"
-	GPT4o20240806         = "gpt-4o-2024-08-06"
-	GPT4oLatest           = "chatgpt-4o-latest"
-	GPT4oMini             = "gpt-4o-mini"
-	GPT4oMini20240718     = "gpt-4o-mini-2024-07-18"
-	GPT4Turbo             = "gpt-4-turbo"
-	GPT4Turbo20240409     = "gpt-4-turbo-2024-04-09"
-	GPT4Turbo0125         = "gpt-4-0125-preview"
-	GPT4Turbo1106         = "gpt-4-1106-preview"
-	GPT4TurboPreview      = "gpt-4-turbo-preview"
-	GPT4VisionPreview     = "gpt-4-vision-preview"
-	GPT4                  = "gpt-4"
-	GPT3Dot5Turbo0125     = "gpt-3.5-turbo-0125"
-	GPT3Dot5Turbo1106     = "gpt-3.5-turbo-1106"
-	GPT3Dot5Turbo0613     = "gpt-3.5-turbo-0613"
-	GPT3Dot5Turbo0301     = "gpt-3.5-turbo-0301"
-	GPT3Dot5Turbo16K      = "gpt-3.5-turbo-16k"
-	GPT3Dot5Turbo16K0613  = "gpt-3.5-turbo-16k-0613"
-	GPT3Dot5Turbo         = "gpt-3.5-turbo"
-	GPT3Dot5TurboInstruct = "gpt-3.5-turbo-instruct"
+	O1Mini                  = "o1-mini"
+	O1Mini20240912          = "o1-mini-2024-09-12"
+	O1Preview               = "o1-preview"
+	O1Preview20240912       = "o1-preview-2024-09-12"
+	O1                      = "o1"
+	O120241217              = "o1-2024-12-17"
+	O3                      = "o3"
+	O320250416              = "o3-2025-04-16"
+	O3Mini                  = "o3-mini"
+	O3Mini20250131          = "o3-mini-2025-01-31"
+	O4Mini                  = "o4-mini"
+	O4Mini20250416          = "o4-mini-2025-04-16"
+	GPT432K0613             = "gpt-4-32k-0613"
+	GPT432K0314             = "gpt-4-32k-0314"
+	GPT432K                 = "gpt-4-32k"
+	GPT40613                = "gpt-4-0613"
+	GPT40314                = "gpt-4-0314"
+	GPT4o                   = "gpt-4o"
+	GPT4o20240513           = "gpt-4o-2024-05-13"
+	GPT4o20240806           = "gpt-4o-2024-08-06"
+	GPT4o20241120           = "gpt-4o-2024-11-20"
+	GPT4oLatest             = "chatgpt-4o-latest"
+	GPT4oMini               = "gpt-4o-mini"
+	GPT4oMini20240718       = "gpt-4o-mini-2024-07-18"
+	GPT4Turbo               = "gpt-4-turbo"
+	GPT4Turbo20240409       = "gpt-4-turbo-2024-04-09"
+	GPT4Turbo0125           = "gpt-4-0125-preview"
+	GPT4Turbo1106           = "gpt-4-1106-preview"
+	GPT4TurboPreview        = "gpt-4-turbo-preview"
+	GPT4VisionPreview       = "gpt-4-vision-preview"
+	GPT4                    = "gpt-4"
+	GPT4Dot1                = "gpt-4.1"
+	GPT4Dot120250414        = "gpt-4.1-2025-04-14"
+	GPT4Dot1Mini            = "gpt-4.1-mini"
+	GPT4Dot1Mini20250414    = "gpt-4.1-mini-2025-04-14"
+	GPT4Dot1Nano            = "gpt-4.1-nano"
+	GPT4Dot1Nano20250414    = "gpt-4.1-nano-2025-04-14"
+	GPT4Dot5Preview         = "gpt-4.5-preview"
+	GPT4Dot5Preview20250227 = "gpt-4.5-preview-2025-02-27"
+	GPT3Dot5Turbo0125       = "gpt-3.5-turbo-0125"
+	GPT3Dot5Turbo1106       = "gpt-3.5-turbo-1106"
+	GPT3Dot5Turbo0613       = "gpt-3.5-turbo-0613"
+	GPT3Dot5Turbo0301       = "gpt-3.5-turbo-0301"
+	GPT3Dot5Turbo16K        = "gpt-3.5-turbo-16k"
+	GPT3Dot5Turbo16K0613    = "gpt-3.5-turbo-16k-0613"
+	GPT3Dot5Turbo           = "gpt-3.5-turbo"
+	GPT3Dot5TurboInstruct   = "gpt-3.5-turbo-instruct"
 	// Deprecated: Model is shutdown. Use gpt-3.5-turbo-instruct instead.
 	GPT3TextDavinci003 = "text-davinci-003"
 	// Deprecated: Model is shutdown. Use gpt-3.5-turbo-instruct instead.
@@ -93,46 +95,53 @@ const (
 	CodexCodeDavinci001 = "code-davinci-001"
 )

-// O1SeriesModels List of new Series of OpenAI models.
-// Some old api attributes not supported.
-var O1SeriesModels = map[string]struct{}{
-	O1Mini:            {},
-	O1Mini20240912:    {},
-	O1Preview:         {},
-	O1Preview20240912: {},
-}
-
 var disabledModelsForEndpoints = map[string]map[string]bool{
 	"/completions": {
-		O1Mini:               true,
-		O1Mini20240912:       true,
-		O1Preview:            true,
-		O1Preview20240912:    true,
-		GPT3Dot5Turbo:        true,
-		GPT3Dot5Turbo0301:    true,
-		GPT3Dot5Turbo0613:    true,
-		GPT3Dot5Turbo1106:    true,
-		GPT3Dot5Turbo0125:    true,
-		GPT3Dot5Turbo16K:     true,
-		GPT3Dot5Turbo16K0613: true,
-		GPT4:                 true,
-		GPT4o:                true,
-		GPT4o20240513:        true,
-		GPT4o20240806:        true,
-		GPT4oLatest:          true,
-		GPT4oMini:            true,
-		GPT4oMini20240718:    true,
-		GPT4TurboPreview:     true,
-		GPT4VisionPreview:    true,
-		GPT4Turbo1106:        true,
-		GPT4Turbo0125:        true,
-		GPT4Turbo:            true,
-		GPT4Turbo20240409:    true,
-		GPT40314:             true,
-		GPT40613:             true,
-		GPT432K:              true,
-		GPT432K0314:          true,
-		GPT432K0613:          true,
+		O1Mini:                  true,
+		O1Mini20240912:          true,
+		O1Preview:               true,
+		O1Preview20240912:       true,
+		O3Mini:                  true,
+		O3Mini20250131:          true,
+		O4Mini:                  true,
+		O4Mini20250416:          true,
+		O3:                      true,
+		O320250416:              true,
+		GPT3Dot5Turbo:           true,
+		GPT3Dot5Turbo0301:       true,
+		GPT3Dot5Turbo0613:       true,
+		GPT3Dot5Turbo1106:       true,
+		GPT3Dot5Turbo0125:       true,
+		GPT3Dot5Turbo16K:        true,
+		GPT3Dot5Turbo16K0613:    true,
+		GPT4:                    true,
+		GPT4Dot5Preview:         true,
+		GPT4Dot5Preview20250227: true,
+		GPT4o:                   true,
+		GPT4o20240513:           true,
+		GPT4o20240806:           true,
+		GPT4o20241120:           true,
+		GPT4oLatest:             true,
+		GPT4oMini:               true,
+		GPT4oMini20240718:       true,
+		GPT4TurboPreview:        true,
+		GPT4VisionPreview:       true,
+		GPT4Turbo1106:           true,
+		GPT4Turbo0125:           true,
+		GPT4Turbo:               true,
+		GPT4Turbo20240409:       true,
+		GPT40314:                true,
+		GPT40613:                true,
+		GPT432K:                 true,
+		GPT432K0314:             true,
+		GPT432K0613:             true,
+		O1:                      true,
+		GPT4Dot1:                true,
+		GPT4Dot120250414:        true,
+		GPT4Dot1Mini:            true,
+		GPT4Dot1Mini20250414:    true,
+		GPT4Dot1Nano:            true,
+		GPT4Dot1Nano20250414:    true,
 	},
 	chatCompletionsSuffix: {
 		CodexCodeDavinci002:     true,
@@ -179,64 +188,6 @@ func checkPromptType(prompt any) bool {
 	return true // all items in the slice are string, so it is []string
 }

-var unsupportedToolsForO1Models = map[ToolType]struct{}{
-	ToolTypeFunction: {},
-}
-
-var availableMessageRoleForO1Models = map[string]struct{}{
-	ChatMessageRoleUser:      {},
-	ChatMessageRoleAssistant: {},
-}
-
-// validateRequestForO1Models checks for deprecated fields of OpenAI models.
-func validateRequestForO1Models(request ChatCompletionRequest) error {
-	if _, found := O1SeriesModels[request.Model]; !found {
-		return nil
-	}
-
-	if request.MaxTokens > 0 {
-		return ErrO1MaxTokensDeprecated
-	}
-
-	// Logprobs: not supported.
-	if request.LogProbs {
-		return ErrO1BetaLimitationsLogprobs
-	}
-
-	// Message types: user and assistant messages only, system messages are not supported.
-	for _, m := range request.Messages {
-		if _, found := availableMessageRoleForO1Models[m.Role]; !found {
-			return ErrO1BetaLimitationsMessageTypes
-		}
-	}
-
-	// Tools: tools, function calling, and response format parameters are not supported
-	for _, t := range request.Tools {
-		if _, found := unsupportedToolsForO1Models[t.Type]; found {
-			return ErrO1BetaLimitationsTools
-		}
-	}
-
-	// Other: temperature, top_p and n are fixed at 1, while presence_penalty and frequency_penalty are fixed at 0.
-	if request.Temperature > 0 && request.Temperature != 1 {
-		return ErrO1BetaLimitationsOther
-	}
-	if request.TopP > 0 && request.TopP != 1 {
-		return ErrO1BetaLimitationsOther
-	}
-	if request.N > 0 && request.N != 1 {
-		return ErrO1BetaLimitationsOther
-	}
-	if request.PresencePenalty > 0 {
-		return ErrO1BetaLimitationsOther
-	}
-	if request.FrequencyPenalty > 0 {
-		return ErrO1BetaLimitationsOther
-	}
-
-	return nil
-}
-
 // CompletionRequest represents a request structure for completion API.
 type CompletionRequest struct {
 	Model            string  `json:"model"`
@@ -264,6 +215,8 @@ type CompletionRequest struct {
 	Temperature     float32           `json:"temperature,omitempty"`
 	TopP            float32           `json:"top_p,omitempty"`
 	User            string            `json:"user,omitempty"`
+	// Options for streaming response. Only set this when you set stream: true.
+	StreamOptions *StreamOptions `json:"stream_options,omitempty"`
 }

 // CompletionChoice represents one of possible completions.
--- a/completion_test.go
+++ b/completion_test.go
@@ -12,8 +12,8 @@ import (
 	"testing"
 	"time"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 func TestCompletionsWrongModel(t *testing.T) {
@@ -33,6 +33,42 @@ func TestCompletionsWrongModel(t *testing.T) {
 	}
 }

+// TestCompletionsWrongModelO3 Tests the completions endpoint with O3 model which is not supported.
+func TestCompletionsWrongModelO3(t *testing.T) {
+	config := openai.DefaultConfig("whatever")
+	config.BaseURL = "http://localhost/v1"
+	client := openai.NewClientWithConfig(config)
+
+	_, err := client.CreateCompletion(
+		context.Background(),
+		openai.CompletionRequest{
+			MaxTokens: 5,
+			Model:     openai.O3,
+		},
+	)
+	if !errors.Is(err, openai.ErrCompletionUnsupportedModel) {
+		t.Fatalf("CreateCompletion should return ErrCompletionUnsupportedModel for O3, but returned: %v", err)
+	}
+}
+
+// TestCompletionsWrongModelO4Mini Tests the completions endpoint with O4Mini model which is not supported.
+func TestCompletionsWrongModelO4Mini(t *testing.T) {
+	config := openai.DefaultConfig("whatever")
+	config.BaseURL = "http://localhost/v1"
+	client := openai.NewClientWithConfig(config)
+
+	_, err := client.CreateCompletion(
+		context.Background(),
+		openai.CompletionRequest{
+			MaxTokens: 5,
+			Model:     openai.O4Mini,
+		},
+	)
+	if !errors.Is(err, openai.ErrCompletionUnsupportedModel) {
+		t.Fatalf("CreateCompletion should return ErrCompletionUnsupportedModel for O4Mini, but returned: %v", err)
+	}
+}
+
 func TestCompletionWithStream(t *testing.T) {
 	config := openai.DefaultConfig("whatever")
 	client := openai.NewClientWithConfig(config)
@@ -181,3 +217,86 @@ func getCompletionBody(r *http.Request) (openai.CompletionRequest, error) {
 	}
 	return completion, nil
 }
+
+// TestCompletionWithO1Model Tests that O1 model is not supported for completion endpoint.
+func TestCompletionWithO1Model(t *testing.T) {
+	config := openai.DefaultConfig("whatever")
+	config.BaseURL = "http://localhost/v1"
+	client := openai.NewClientWithConfig(config)
+
+	_, err := client.CreateCompletion(
+		context.Background(),
+		openai.CompletionRequest{
+			MaxTokens: 5,
+			Model:     openai.O1,
+		},
+	)
+	if !errors.Is(err, openai.ErrCompletionUnsupportedModel) {
+		t.Fatalf("CreateCompletion should return ErrCompletionUnsupportedModel for O1 model, but returned: %v", err)
+	}
+}
+
+// TestCompletionWithGPT4DotModels Tests that newer GPT4 models are not supported for completion endpoint.
+func TestCompletionWithGPT4DotModels(t *testing.T) {
+	config := openai.DefaultConfig("whatever")
+	config.BaseURL = "http://localhost/v1"
+	client := openai.NewClientWithConfig(config)
+
+	models := []string{
+		openai.GPT4Dot1,
+		openai.GPT4Dot120250414,
+		openai.GPT4Dot1Mini,
+		openai.GPT4Dot1Mini20250414,
+		openai.GPT4Dot1Nano,
+		openai.GPT4Dot1Nano20250414,
+		openai.GPT4Dot5Preview,
+		openai.GPT4Dot5Preview20250227,
+	}
+
+	for _, model := range models {
+		t.Run(model, func(t *testing.T) {
+			_, err := client.CreateCompletion(
+				context.Background(),
+				openai.CompletionRequest{
+					MaxTokens: 5,
+					Model:     model,
+				},
+			)
+			if !errors.Is(err, openai.ErrCompletionUnsupportedModel) {
+				t.Fatalf("CreateCompletion should return ErrCompletionUnsupportedModel for %s model, but returned: %v", model, err)
+			}
+		})
+	}
+}
+
+// TestCompletionWithGPT4oModels Tests that GPT4o models are not supported for completion endpoint.
+func TestCompletionWithGPT4oModels(t *testing.T) {
+	config := openai.DefaultConfig("whatever")
+	config.BaseURL = "http://localhost/v1"
+	client := openai.NewClientWithConfig(config)
+
+	models := []string{
+		openai.GPT4o,
+		openai.GPT4o20240513,
+		openai.GPT4o20240806,
+		openai.GPT4o20241120,
+		openai.GPT4oLatest,
+		openai.GPT4oMini,
+		openai.GPT4oMini20240718,
+	}
+
+	for _, model := range models {
+		t.Run(model, func(t *testing.T) {
+			_, err := client.CreateCompletion(
+				context.Background(),
+				openai.CompletionRequest{
+					MaxTokens: 5,
+					Model:     model,
+				},
+			)
+			if !errors.Is(err, openai.ErrCompletionUnsupportedModel) {
+				t.Fatalf("CreateCompletion should return ErrCompletionUnsupportedModel for %s model, but returned: %v", model, err)
+			}
+		})
+	}
+}
--- a/config.go
+++ b/config.go
@@ -11,6 +11,8 @@ const (

 	azureAPIPrefix         = "openai"
 	azureDeploymentsPrefix = "deployments"
+
+	AnthropicAPIVersion = "2023-06-01"
 )

 type APIType string
@@ -20,6 +22,7 @@ const (
 	APITypeAzure           APIType = "AZURE"
 	APITypeAzureAD         APIType = "AZURE_AD"
 	APITypeCloudflareAzure APIType = "CLOUDFLARE_AZURE"
+	APITypeAnthropic       APIType = "ANTHROPIC"
 )

 const AzureAPIKeyHeader = "api-key"
@@ -37,7 +40,7 @@ type ClientConfig struct {
 	BaseURL              string
 	OrgID                string
 	APIType              APIType
-	APIVersion           string // required when APIType is APITypeAzure or APITypeAzureAD
+	APIVersion           string // required when APIType is APITypeAzure or APITypeAzureAD or APITypeAnthropic
 	AssistantVersion     string
 	AzureModelMapperFunc func(model string) string // replace model to azure deployment name func
 	HTTPClient           HTTPDoer
@@ -76,6 +79,23 @@ func DefaultAzureConfig(apiKey, baseURL string) ClientConfig {
 	}
 }

+func DefaultAnthropicConfig(apiKey, baseURL string) ClientConfig {
+	if baseURL == "" {
+		baseURL = "https://api.anthropic.com/v1"
+	}
+	return ClientConfig{
+		authToken:  apiKey,
+		BaseURL:    baseURL,
+		OrgID:      "",
+		APIType:    APITypeAnthropic,
+		APIVersion: AnthropicAPIVersion,
+
+		HTTPClient: &http.Client{},
+
+		EmptyMessagesLimit: defaultEmptyMessagesLimit,
+	}
+}
+
 func (ClientConfig) String() string {
 	return "<OpenAI API ClientConfig>"
 }
--- a/config_test.go
+++ b/config_test.go
@@ -3,7 +3,7 @@ package openai_test
 import (
 	"testing"

-	"github.com/sashabaranov/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai"
 )

 func TestGetAzureDeploymentByModel(t *testing.T) {
@@ -60,3 +60,64 @@ func TestGetAzureDeploymentByModel(t *testing.T) {
 		})
 	}
 }
+
+func TestDefaultAnthropicConfig(t *testing.T) {
+	apiKey := "test-key"
+	baseURL := "https://api.anthropic.com/v1"
+
+	config := openai.DefaultAnthropicConfig(apiKey, baseURL)
+
+	if config.APIType != openai.APITypeAnthropic {
+		t.Errorf("Expected APIType to be %v, got %v", openai.APITypeAnthropic, config.APIType)
+	}
+
+	if config.APIVersion != openai.AnthropicAPIVersion {
+		t.Errorf("Expected APIVersion to be 2023-06-01, got %v", config.APIVersion)
+	}
+
+	if config.BaseURL != baseURL {
+		t.Errorf("Expected BaseURL to be %v, got %v", baseURL, config.BaseURL)
+	}
+
+	if config.EmptyMessagesLimit != 300 {
+		t.Errorf("Expected EmptyMessagesLimit to be 300, got %v", config.EmptyMessagesLimit)
+	}
+}
+
+func TestDefaultAnthropicConfigWithEmptyValues(t *testing.T) {
+	config := openai.DefaultAnthropicConfig("", "")
+
+	if config.APIType != openai.APITypeAnthropic {
+		t.Errorf("Expected APIType to be %v, got %v", openai.APITypeAnthropic, config.APIType)
+	}
+
+	if config.APIVersion != openai.AnthropicAPIVersion {
+		t.Errorf("Expected APIVersion to be %s, got %v", openai.AnthropicAPIVersion, config.APIVersion)
+	}
+
+	expectedBaseURL := "https://api.anthropic.com/v1"
+	if config.BaseURL != expectedBaseURL {
+		t.Errorf("Expected BaseURL to be %v, got %v", expectedBaseURL, config.BaseURL)
+	}
+}
+
+func TestClientConfigString(t *testing.T) {
+	// String() should always return the constant value
+	conf := openai.DefaultConfig("dummy-token")
+	expected := "<OpenAI API ClientConfig>"
+	got := conf.String()
+	if got != expected {
+		t.Errorf("ClientConfig.String() = %q; want %q", got, expected)
+	}
+}
+
+func TestGetAzureDeploymentByModel_NoMapper(t *testing.T) {
+	// On a zero-value or DefaultConfig, AzureModelMapperFunc is nil,
+	// so GetAzureDeploymentByModel should just return the input model.
+	conf := openai.DefaultConfig("dummy-token")
+	model := "some-model"
+	got := conf.GetAzureDeploymentByModel(model)
+	if got != model {
+		t.Errorf("GetAzureDeploymentByModel(%q) = %q; want %q", model, got, model)
+	}
+}
--- a/edits_test.go
+++ b/edits_test.go
@@ -9,8 +9,8 @@ import (
 	"testing"
 	"time"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 // TestEdits Tests the edits endpoint of the API using the mocked server.
--- a/embeddings_test.go
+++ b/embeddings_test.go
@@ -11,8 +11,8 @@ import (
 	"reflect"
 	"testing"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 func TestEmbedding(t *testing.T) {
--- a/engines_test.go
+++ b/engines_test.go
@@ -7,8 +7,8 @@ import (
 	"net/http"
 	"testing"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 // TestGetEngine Tests the retrieve engine endpoint of the API using the mocked server.
--- a/error.go
+++ b/error.go
@@ -54,7 +54,7 @@ func (e *APIError) UnmarshalJSON(data []byte) (err error) {
 	err = json.Unmarshal(rawMap["message"], &e.Message)
 	if err != nil {
 		// If the parameter field of a function call is invalid as a JSON schema
-		// refs: https://github.com/sashabaranov/go-openai/issues/381
+		// refs: https://git.vaala.cloud/VaalaCat/go-openai/issues/381
 		var messages []string
 		err = json.Unmarshal(rawMap["message"], &messages)
 		if err != nil {
@@ -64,7 +64,7 @@ func (e *APIError) UnmarshalJSON(data []byte) (err error) {
 	}

 	// optional fields for azure openai
-	// refs: https://github.com/sashabaranov/go-openai/issues/343
+	// refs: https://git.vaala.cloud/VaalaCat/go-openai/issues/343
 	if _, ok := rawMap["type"]; ok {
 		err = json.Unmarshal(rawMap["type"], &e.Type)
 		if err != nil {
--- a/error_test.go
+++ b/error_test.go
@@ -6,7 +6,7 @@ import (
 	"reflect"
 	"testing"

-	"github.com/sashabaranov/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai"
 )

 func TestAPIErrorUnmarshalJSON(t *testing.T) {
--- a/example_test.go
+++ b/example_test.go
@@ -11,7 +11,7 @@ import (
 	"net/url"
 	"os"

-	"github.com/sashabaranov/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai"
 )

 func Example() {
--- a/examples/chatbot/main.go
+++ b/examples/chatbot/main.go
@@ -6,7 +6,7 @@ import (
 	"fmt"
 	"os"

-	"github.com/sashabaranov/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai"
 )

 func main() {
--- a/examples/completion-with-tool/main.go
+++ b/examples/completion-with-tool/main.go
@@ -5,8 +5,8 @@ import (
 	"fmt"
 	"os"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/jsonschema"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/jsonschema"
 )

 func main() {
--- a/examples/completion/main.go
+++ b/examples/completion/main.go
@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"os"

-	"github.com/sashabaranov/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai"
 )

 func main() {
--- a/examples/images/main.go
+++ b/examples/images/main.go
@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"os"

-	"github.com/sashabaranov/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai"
 )

 func main() {
--- a/examples/voice-to-text/main.go
+++ b/examples/voice-to-text/main.go
@@ -6,7 +6,7 @@ import (
 	"fmt"
 	"os"

-	"github.com/sashabaranov/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai"
 )

 func main() {
--- a/files_api_test.go
+++ b/files_api_test.go
@@ -12,8 +12,8 @@ import (
 	"testing"
 	"time"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 func TestFileBytesUpload(t *testing.T) {
--- a/files_test.go
+++ b/files_test.go
@@ -7,8 +7,8 @@ import (
 	"os"
 	"testing"

-	utils "github.com/sashabaranov/go-openai/internal"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	utils "git.vaala.cloud/VaalaCat/go-openai/internal"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 func TestFileBytesUploadWithFailingFormBuilder(t *testing.T) {
--- a/fine_tunes_test.go
+++ b/fine_tunes_test.go
@@ -7,8 +7,8 @@ import (
 	"net/http"
 	"testing"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 const testFineTuneID = "fine-tune-id"
--- a/fine_tuning_job_test.go
+++ b/fine_tuning_job_test.go
@@ -7,8 +7,8 @@ import (
 	"net/http"
 	"testing"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 const testFineTuninigJobID = "fine-tuning-job-id"
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,3 @@
-module github.com/sashabaranov/go-openai
+module git.vaala.cloud/VaalaCat/go-openai

 go 1.18
--- a/image.go
+++ b/image.go
@@ -3,8 +3,8 @@ package openai
 import (
 	"bytes"
 	"context"
+	"io"
 	"net/http"
-	"os"
 	"strconv"
 )

@@ -13,51 +13,101 @@ const (
 	CreateImageSize256x256   = "256x256"
 	CreateImageSize512x512   = "512x512"
 	CreateImageSize1024x1024 = "1024x1024"
+
 	// dall-e-3 supported only.
 	CreateImageSize1792x1024 = "1792x1024"
 	CreateImageSize1024x1792 = "1024x1792"
+
+	// gpt-image-1 supported only.
+	CreateImageSize1536x1024 = "1536x1024" // Landscape
+	CreateImageSize1024x1536 = "1024x1536" // Portrait
 )

 const (
-	CreateImageResponseFormatURL     = "url"
+	// dall-e-2 and dall-e-3 only.
 	CreateImageResponseFormatB64JSON = "b64_json"
+	CreateImageResponseFormatURL     = "url"
 )

 const (
-	CreateImageModelDallE2 = "dall-e-2"
-	CreateImageModelDallE3 = "dall-e-3"
+	CreateImageModelDallE2    = "dall-e-2"
+	CreateImageModelDallE3    = "dall-e-3"
+	CreateImageModelGptImage1 = "gpt-image-1"
 )

 const (
 	CreateImageQualityHD       = "hd"
 	CreateImageQualityStandard = "standard"
+
+	// gpt-image-1 only.
+	CreateImageQualityHigh   = "high"
+	CreateImageQualityMedium = "medium"
+	CreateImageQualityLow    = "low"
 )

 const (
+	// dall-e-3 only.
 	CreateImageStyleVivid   = "vivid"
 	CreateImageStyleNatural = "natural"
 )

+const (
+	// gpt-image-1 only.
+	CreateImageBackgroundTransparent = "transparent"
+	CreateImageBackgroundOpaque      = "opaque"
+)
+
+const (
+	// gpt-image-1 only.
+	CreateImageModerationLow = "low"
+)
+
+const (
+	// gpt-image-1 only.
+	CreateImageOutputFormatPNG  = "png"
+	CreateImageOutputFormatJPEG = "jpeg"
+	CreateImageOutputFormatWEBP = "webp"
+)
+
 // ImageRequest represents the request structure for the image API.
 type ImageRequest struct {
-	Prompt         string `json:"prompt,omitempty"`
-	Model          string `json:"model,omitempty"`
-	N              int    `json:"n,omitempty"`
-	Quality        string `json:"quality,omitempty"`
-	Size           string `json:"size,omitempty"`
-	Style          string `json:"style,omitempty"`
-	ResponseFormat string `json:"response_format,omitempty"`
-	User           string `json:"user,omitempty"`
+	Prompt            string `json:"prompt,omitempty"`
+	Model             string `json:"model,omitempty"`
+	N                 int    `json:"n,omitempty"`
+	Quality           string `json:"quality,omitempty"`
+	Size              string `json:"size,omitempty"`
+	Style             string `json:"style,omitempty"`
+	ResponseFormat    string `json:"response_format,omitempty"`
+	User              string `json:"user,omitempty"`
+	Background        string `json:"background,omitempty"`
+	Moderation        string `json:"moderation,omitempty"`
+	OutputCompression int    `json:"output_compression,omitempty"`
+	OutputFormat      string `json:"output_format,omitempty"`
 }

 // ImageResponse represents a response structure for image API.
 type ImageResponse struct {
 	Created int64                    `json:"created,omitempty"`
 	Data    []ImageResponseDataInner `json:"data,omitempty"`
+	Usage   ImageResponseUsage       `json:"usage,omitempty"`

 	httpHeader
 }

+// ImageResponseInputTokensDetails represents the token breakdown for input tokens.
+type ImageResponseInputTokensDetails struct {
+	TextTokens  int `json:"text_tokens,omitempty"`
+	ImageTokens int `json:"image_tokens,omitempty"`
+}
+
+// ImageResponseUsage represents the token usage information for image API.
+type ImageResponseUsage struct {
+	TotalTokens        int                             `json:"total_tokens,omitempty"`
+	InputTokens        int                             `json:"input_tokens,omitempty"`
+	OutputTokens       int                             `json:"output_tokens,omitempty"`
+	InputTokensDetails ImageResponseInputTokensDetails `json:"input_tokens_details,omitempty"`
+}
+
 // ImageResponseDataInner represents a response data structure for image API.
 type ImageResponseDataInner struct {
 	URL           string `json:"url,omitempty"`
@@ -84,13 +134,15 @@ func (c *Client) CreateImage(ctx context.Context, request ImageRequest) (respons

 // ImageEditRequest represents the request structure for the image API.
 type ImageEditRequest struct {
-	Image          *os.File `json:"image,omitempty"`
-	Mask           *os.File `json:"mask,omitempty"`
-	Prompt         string   `json:"prompt,omitempty"`
-	Model          string   `json:"model,omitempty"`
-	N              int      `json:"n,omitempty"`
-	Size           string   `json:"size,omitempty"`
-	ResponseFormat string   `json:"response_format,omitempty"`
+	Image          io.Reader `json:"image,omitempty"`
+	Mask           io.Reader `json:"mask,omitempty"`
+	Prompt         string    `json:"prompt,omitempty"`
+	Model          string    `json:"model,omitempty"`
+	N              int       `json:"n,omitempty"`
+	Size           string    `json:"size,omitempty"`
+	ResponseFormat string    `json:"response_format,omitempty"`
+	Quality        string    `json:"quality,omitempty"`
+	User           string    `json:"user,omitempty"`
 }

 // CreateEditImage - API call to create an image. This is the main endpoint of the DALL-E API.
@@ -98,15 +150,16 @@ func (c *Client) CreateEditImage(ctx context.Context, request ImageEditRequest)
 	body := &bytes.Buffer{}
 	builder := c.createFormBuilder(body)

-	// image
-	err = builder.CreateFormFile("image", request.Image)
+	// image, filename is not required
+	err = builder.CreateFormFileReader("image", request.Image, "")
 	if err != nil {
 		return
 	}

 	// mask, it is optional
 	if request.Mask != nil {
-		err = builder.CreateFormFile("mask", request.Mask)
+		// mask, filename is not required
+		err = builder.CreateFormFileReader("mask", request.Mask, "")
 		if err != nil {
 			return
 		}
@@ -154,11 +207,12 @@ func (c *Client) CreateEditImage(ctx context.Context, request ImageEditRequest)

 // ImageVariRequest represents the request structure for the image API.
 type ImageVariRequest struct {
-	Image          *os.File `json:"image,omitempty"`
-	Model          string   `json:"model,omitempty"`
-	N              int      `json:"n,omitempty"`
-	Size           string   `json:"size,omitempty"`
-	ResponseFormat string   `json:"response_format,omitempty"`
+	Image          io.Reader `json:"image,omitempty"`
+	Model          string    `json:"model,omitempty"`
+	N              int       `json:"n,omitempty"`
+	Size           string    `json:"size,omitempty"`
+	ResponseFormat string    `json:"response_format,omitempty"`
+	User           string    `json:"user,omitempty"`
 }

 // CreateVariImage - API call to create an image variation. This is the main endpoint of the DALL-E API.
@@ -167,8 +221,8 @@ func (c *Client) CreateVariImage(ctx context.Context, request ImageVariRequest)
 	body := &bytes.Buffer{}
 	builder := c.createFormBuilder(body)

-	// image
-	err = builder.CreateFormFile("image", request.Image)
+	// image, filename is not required
+	err = builder.CreateFormFileReader("image", request.Image, "")
 	if err != nil {
 		return
 	}
--- a/image_api_test.go
+++ b/image_api_test.go
@@ -7,11 +7,12 @@ import (
 	"io"
 	"net/http"
 	"os"
+	"path/filepath"
 	"testing"
 	"time"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 func TestImages(t *testing.T) {
@@ -86,24 +87,17 @@ func TestImageEdit(t *testing.T) {
 	defer teardown()
 	server.RegisterHandler("/v1/images/edits", handleEditImageEndpoint)

-	origin, err := os.Create("image.png")
+	origin, err := os.Create(filepath.Join(t.TempDir(), "image.png"))
 	if err != nil {
-		t.Error("open origin file error")
-		return
+		t.Fatalf("open origin file error: %v", err)
 	}
+	defer origin.Close()

-	mask, err := os.Create("mask.png")
+	mask, err := os.Create(filepath.Join(t.TempDir(), "mask.png"))
 	if err != nil {
-		t.Error("open mask file error")
-		return
+		t.Fatalf("open mask file error: %v", err)
 	}
-
-	defer func() {
-		mask.Close()
-		origin.Close()
-		os.Remove("mask.png")
-		os.Remove("image.png")
-	}()
+	defer mask.Close()

 	_, err = client.CreateEditImage(context.Background(), openai.ImageEditRequest{
 		Image:          origin,
@@ -121,16 +115,11 @@ func TestImageEditWithoutMask(t *testing.T) {
 	defer teardown()
 	server.RegisterHandler("/v1/images/edits", handleEditImageEndpoint)

-	origin, err := os.Create("image.png")
+	origin, err := os.Create(filepath.Join(t.TempDir(), "image.png"))
 	if err != nil {
-		t.Error("open origin file error")
-		return
+		t.Fatalf("open origin file error: %v", err)
 	}
-
-	defer func() {
-		origin.Close()
-		os.Remove("image.png")
-	}()
+	defer origin.Close()

 	_, err = client.CreateEditImage(context.Background(), openai.ImageEditRequest{
 		Image:          origin,
@@ -178,16 +167,11 @@ func TestImageVariation(t *testing.T) {
 	defer teardown()
 	server.RegisterHandler("/v1/images/variations", handleVariateImageEndpoint)

-	origin, err := os.Create("image.png")
+	origin, err := os.Create(filepath.Join(t.TempDir(), "image.png"))
 	if err != nil {
-		t.Error("open origin file error")
-		return
+		t.Fatalf("open origin file error: %v", err)
 	}
-
-	defer func() {
-		origin.Close()
-		os.Remove("image.png")
-	}()
+	defer origin.Close()

 	_, err = client.CreateVariImage(context.Background(), openai.ImageVariRequest{
 		Image:          origin,
--- a/image_test.go
+++ b/image_test.go
@@ -1,8 +1,8 @@
 package openai //nolint:testpackage // testing private field

 import (
-	utils "github.com/sashabaranov/go-openai/internal"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	utils "git.vaala.cloud/VaalaCat/go-openai/internal"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"

 	"context"
 	"fmt"
@@ -54,13 +54,13 @@ func TestImageFormBuilderFailures(t *testing.T) {
 	}

 	mockFailedErr := fmt.Errorf("mock form builder fail")
-	mockBuilder.mockCreateFormFile = func(string, *os.File) error {
+	mockBuilder.mockCreateFormFileReader = func(string, io.Reader, string) error {
 		return mockFailedErr
 	}
 	_, err := client.CreateEditImage(ctx, req)
 	checks.ErrorIs(t, err, mockFailedErr, "CreateImage should return error if form builder fails")

-	mockBuilder.mockCreateFormFile = func(name string, _ *os.File) error {
+	mockBuilder.mockCreateFormFileReader = func(name string, _ io.Reader, _ string) error {
 		if name == "mask" {
 			return mockFailedErr
 		}
@@ -119,13 +119,13 @@ func TestVariImageFormBuilderFailures(t *testing.T) {
 	req := ImageVariRequest{}

 	mockFailedErr := fmt.Errorf("mock form builder fail")
-	mockBuilder.mockCreateFormFile = func(string, *os.File) error {
+	mockBuilder.mockCreateFormFileReader = func(string, io.Reader, string) error {
 		return mockFailedErr
 	}
 	_, err := client.CreateVariImage(ctx, req)
 	checks.ErrorIs(t, err, mockFailedErr, "CreateVariImage should return error if form builder fails")

-	mockBuilder.mockCreateFormFile = func(string, *os.File) error {
+	mockBuilder.mockCreateFormFileReader = func(string, io.Reader, string) error {
 		return nil
 	}

--- a/internal/error_accumulator_test.go
+++ b/internal/error_accumulator_test.go
@@ -5,8 +5,8 @@ import (
 	"errors"
 	"testing"

-	utils "github.com/sashabaranov/go-openai/internal"
-	"github.com/sashabaranov/go-openai/internal/test"
+	utils "git.vaala.cloud/VaalaCat/go-openai/internal"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test"
 )

 func TestErrorAccumulatorBytes(t *testing.T) {
--- a/internal/form_builder.go
+++ b/internal/form_builder.go
@@ -4,8 +4,10 @@ import (
 	"fmt"
 	"io"
 	"mime/multipart"
+	"net/textproto"
 	"os"
-	"path"
+	"path/filepath"
+	"strings"
 )

 type FormBuilder interface {
@@ -30,8 +32,37 @@ func (fb *DefaultFormBuilder) CreateFormFile(fieldname string, file *os.File) er
 	return fb.createFormFile(fieldname, file, file.Name())
 }

+var quoteEscaper = strings.NewReplacer("\\", "\\\\", `"`, "\\\"")
+
+func escapeQuotes(s string) string {
+	return quoteEscaper.Replace(s)
+}
+
+// CreateFormFileReader creates a form field with a file reader.
+// The filename in parameters can be an empty string.
+// The filename in Content-Disposition is required, But it can be an empty string.
 func (fb *DefaultFormBuilder) CreateFormFileReader(fieldname string, r io.Reader, filename string) error {
-	return fb.createFormFile(fieldname, r, path.Base(filename))
+	h := make(textproto.MIMEHeader)
+	h.Set(
+		"Content-Disposition",
+		fmt.Sprintf(
+			`form-data; name="%s"; filename="%s"`,
+			escapeQuotes(fieldname),
+			escapeQuotes(filepath.Base(filename)),
+		),
+	)
+
+	fieldWriter, err := fb.writer.CreatePart(h)
+	if err != nil {
+		return err
+	}
+
+	_, err = io.Copy(fieldWriter, r)
+	if err != nil {
+		return err
+	}
+
+	return nil
 }

 func (fb *DefaultFormBuilder) createFormFile(fieldname string, r io.Reader, filename string) error {
--- a/internal/form_builder_test.go
+++ b/internal/form_builder_test.go
@@ -1,8 +1,7 @@
 package openai //nolint:testpackage // testing private field

 import (
-	"github.com/sashabaranov/go-openai/internal/test"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"

 	"bytes"
 	"errors"
@@ -20,15 +19,11 @@ func (*failingWriter) Write([]byte) (int, error) {
 }

 func TestFormBuilderWithFailingWriter(t *testing.T) {
-	dir, cleanup := test.CreateTestDirectory(t)
-	defer cleanup()
-
-	file, err := os.CreateTemp(dir, "")
+	file, err := os.CreateTemp(t.TempDir(), "")
 	if err != nil {
-		t.Errorf("Error creating tmp file: %v", err)
+		t.Fatalf("Error creating tmp file: %v", err)
 	}
 	defer file.Close()
-	defer os.Remove(file.Name())

 	builder := NewFormBuilder(&failingWriter{})
 	err = builder.CreateFormFile("file", file)
@@ -36,15 +31,11 @@ func TestFormBuilderWithFailingWriter(t *testing.T) {
 }

 func TestFormBuilderWithClosedFile(t *testing.T) {
-	dir, cleanup := test.CreateTestDirectory(t)
-	defer cleanup()
-
-	file, err := os.CreateTemp(dir, "")
+	file, err := os.CreateTemp(t.TempDir(), "")
 	if err != nil {
-		t.Errorf("Error creating tmp file: %v", err)
+		t.Fatalf("Error creating tmp file: %v", err)
 	}
 	file.Close()
-	defer os.Remove(file.Name())

 	body := &bytes.Buffer{}
 	builder := NewFormBuilder(body)
@@ -52,3 +43,32 @@ func TestFormBuilderWithClosedFile(t *testing.T) {
 	checks.HasError(t, err, "formbuilder should return error if file is closed")
 	checks.ErrorIs(t, err, os.ErrClosed, "formbuilder should return error if file is closed")
 }
+
+type failingReader struct {
+}
+
+var errMockFailingReaderError = errors.New("mock reader failed")
+
+func (*failingReader) Read([]byte) (int, error) {
+	return 0, errMockFailingReaderError
+}
+
+func TestFormBuilderWithReader(t *testing.T) {
+	file, err := os.CreateTemp(t.TempDir(), "")
+	if err != nil {
+		t.Fatalf("Error creating tmp file: %v", err)
+	}
+	defer file.Close()
+	builder := NewFormBuilder(&failingWriter{})
+	err = builder.CreateFormFileReader("file", file, file.Name())
+	checks.ErrorIs(t, err, errMockFailingWriterError, "formbuilder should return error if writer fails")
+
+	builder = NewFormBuilder(&bytes.Buffer{})
+	reader := &failingReader{}
+	err = builder.CreateFormFileReader("file", reader, "")
+	checks.ErrorIs(t, err, errMockFailingReaderError, "formbuilder should return error if copy reader fails")
+
+	successReader := &bytes.Buffer{}
+	err = builder.CreateFormFileReader("file", successReader, "")
+	checks.NoError(t, err, "formbuilder should not return error")
+}
--- a/internal/test/helpers.go
+++ b/internal/test/helpers.go
@@ -1,7 +1,7 @@
 package test

 import (
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"

 	"net/http"
 	"os"
@@ -19,16 +19,6 @@ func CreateTestFile(t *testing.T, path string) {
 	file.Close()
 }

-// CreateTestDirectory creates a temporary folder which will be deleted when cleanup is called.
-func CreateTestDirectory(t *testing.T) (path string, cleanup func()) {
-	t.Helper()
-
-	path, err := os.MkdirTemp(os.TempDir(), "")
-	checks.NoError(t, err)
-
-	return path, func() { os.RemoveAll(path) }
-}
-
 // TokenRoundTripper is a struct that implements the RoundTripper
 // interface, specifically to handle the authentication token by adding a token
 // to the request header. We need this because the API requires that each
--- a/jsonschema/json.go
+++ b/jsonschema/json.go
@@ -46,6 +46,8 @@ type Definition struct {
 	// additionalProperties: false
 	// additionalProperties: jsonschema.Definition{Type: jsonschema.String}
 	AdditionalProperties any `json:"additionalProperties,omitempty"`
+	// Whether the schema is nullable or not.
+	Nullable bool `json:"nullable,omitempty"`
 }

 func (d *Definition) MarshalJSON() ([]byte, error) {
@@ -124,9 +126,12 @@ func reflectSchemaObject(t reflect.Type) (*Definition, error) {
 		}
 		jsonTag := field.Tag.Get("json")
 		var required = true
-		if jsonTag == "" {
+		switch {
+		case jsonTag == "-":
+			continue
+		case jsonTag == "":
 			jsonTag = field.Name
-		} else if strings.HasSuffix(jsonTag, ",omitempty") {
+		case strings.HasSuffix(jsonTag, ",omitempty"):
 			jsonTag = strings.TrimSuffix(jsonTag, ",omitempty")
 			required = false
 		}
@@ -139,6 +144,16 @@ func reflectSchemaObject(t reflect.Type) (*Definition, error) {
 		if description != "" {
 			item.Description = description
 		}
+		enum := field.Tag.Get("enum")
+		if enum != "" {
+			item.Enum = strings.Split(enum, ",")
+		}
+
+		if n := field.Tag.Get("nullable"); n != "" {
+			nullable, _ := strconv.ParseBool(n)
+			item.Nullable = nullable
+		}
+
 		properties[jsonTag] = *item

 		if s := field.Tag.Get("required"); s != "" {
--- a/jsonschema/json_test.go
+++ b/jsonschema/json_test.go
@@ -5,7 +5,7 @@ import (
 	"reflect"
 	"testing"

-	"github.com/sashabaranov/go-openai/jsonschema"
+	"git.vaala.cloud/VaalaCat/go-openai/jsonschema"
 )

 func TestDefinition_MarshalJSON(t *testing.T) {
@@ -17,7 +17,7 @@ func TestDefinition_MarshalJSON(t *testing.T) {
 		{
 			name: "Test with empty Definition",
 			def:  jsonschema.Definition{},
-			want: `{"properties":{}}`,
+			want: `{}`,
 		},
 		{
 			name: "Test with Definition properties set",
@@ -31,15 +31,14 @@ func TestDefinition_MarshalJSON(t *testing.T) {
 				},
 			},
 			want: `{
-   "type":"string",
-   "description":"A string type",
-   "properties":{
-      "name":{
-         "type":"string",
-         "properties":{}
-      }
-   }
-}`,
+				"type":"string",
+				"description":"A string type",
+				"properties":{
+						"name":{
+							"type":"string"
+						}
+				}
+			}`,
 		},
 		{
 			name: "Test with nested Definition properties",
@@ -60,23 +59,21 @@ func TestDefinition_MarshalJSON(t *testing.T) {
 				},
 			},
 			want: `{
-   "type":"object",
-   "properties":{
-      "user":{
-         "type":"object",
-         "properties":{
-            "name":{
-               "type":"string",
-               "properties":{}
-            },
-            "age":{
-               "type":"integer",
-               "properties":{}
-            }
-         }
-      }
-   }
-}`,
+				"type":"object",
+				"properties":{
+						"user":{
+							"type":"object",
+							"properties":{
+									"name":{
+										"type":"string"
+									},
+									"age":{
+										"type":"integer"
+									}
+							}
+						}
+				}
+			}`,
 		},
 		{
 			name: "Test with complex nested Definition",
@@ -108,36 +105,32 @@ func TestDefinition_MarshalJSON(t *testing.T) {
 				},
 			},
 			want: `{
-   "type":"object",
-   "properties":{
-      "user":{
-         "type":"object",
-         "properties":{
-            "name":{
-               "type":"string",
-               "properties":{}
-            },
-            "age":{
-               "type":"integer",
-               "properties":{}
-            },
-            "address":{
-               "type":"object",
-               "properties":{
-                  "city":{
-                     "type":"string",
-                     "properties":{}
-                  },
-                  "country":{
-                     "type":"string",
-                     "properties":{}
-                  }
-               }
-            }
-         }
-      }
-   }
-}`,
+				"type":"object",
+				"properties":{
+						"user":{
+							"type":"object",
+							"properties":{
+									"name":{
+										"type":"string"
+									},
+									"age":{
+										"type":"integer"
+									},
+									"address":{
+										"type":"object",
+										"properties":{
+												"city":{
+													"type":"string"
+												},
+												"country":{
+													"type":"string"
+												}
+										}
+									}
+							}
+						}
+				}
+			}`,
 		},
 		{
 			name: "Test with Array type Definition",
@@ -153,20 +146,16 @@ func TestDefinition_MarshalJSON(t *testing.T) {
 				},
 			},
 			want: `{
-   "type":"array",
-   "items":{
-      "type":"string",
-      "properties":{
-         
-      }
-   },
-   "properties":{
-      "name":{
-         "type":"string",
-         "properties":{}
-      }
-   }
-}`,
+				"type":"array",
+				"items":{
+						"type":"string"
+				},
+				"properties":{
+						"name":{
+							"type":"string"
+						}
+				}
+			}`,
 		},
 	}

@@ -193,6 +182,232 @@ func TestDefinition_MarshalJSON(t *testing.T) {
 	}
 }

+func TestStructToSchema(t *testing.T) {
+	tests := []struct {
+		name string
+		in   any
+		want string
+	}{
+		{
+			name: "Test with empty struct",
+			in:   struct{}{},
+			want: `{
+				"type":"object",
+				"additionalProperties":false
+			}`,
+		},
+		{
+			name: "Test with struct containing many fields",
+			in: struct {
+				Name   string  `json:"name"`
+				Age    int     `json:"age"`
+				Active bool    `json:"active"`
+				Height float64 `json:"height"`
+				Cities []struct {
+					Name  string `json:"name"`
+					State string `json:"state"`
+				} `json:"cities"`
+			}{
+				Name: "John Doe",
+				Age:  30,
+				Cities: []struct {
+					Name  string `json:"name"`
+					State string `json:"state"`
+				}{
+					{Name: "New York", State: "NY"},
+					{Name: "Los Angeles", State: "CA"},
+				},
+			},
+			want: `{
+				"type":"object",
+				"properties":{
+					"name":{
+						"type":"string"
+					},
+					"age":{
+						"type":"integer"
+					},
+					"active":{
+						"type":"boolean"
+					},
+					"height":{
+						"type":"number"
+					},
+					"cities":{
+						"type":"array",
+						"items":{
+							"additionalProperties":false,
+							"type":"object",
+							"properties":{
+								"name":{
+									"type":"string"
+								},
+								"state":{
+									"type":"string"
+								}
+							},
+							"required":["name","state"]
+						}
+					}
+				},
+				"required":["name","age","active","height","cities"],
+				"additionalProperties":false
+			}`,
+		},
+		{
+			name: "Test with description tag",
+			in: struct {
+				Name string `json:"name" description:"The name of the person"`
+			}{
+				Name: "John Doe",
+			},
+			want: `{
+				"type":"object",
+				"properties":{
+					"name":{
+						"type":"string",
+						"description":"The name of the person"
+					}
+				},
+				"required":["name"],
+				"additionalProperties":false
+			}`,
+		},
+		{
+			name: "Test with required tag",
+			in: struct {
+				Name string `json:"name" required:"false"`
+			}{
+				Name: "John Doe",
+			},
+			want: `{
+				"type":"object",
+				"properties":{
+					"name":{
+						"type":"string"
+					}
+				},
+				"additionalProperties":false
+			}`,
+		},
+		{
+			name: "Test with enum tag",
+			in: struct {
+				Color string `json:"color" enum:"red,green,blue"`
+			}{
+				Color: "red",
+			},
+			want: `{
+				"type":"object",
+				"properties":{
+					"color":{
+						"type":"string",
+						"enum":["red","green","blue"]
+					}
+				},
+				"required":["color"],
+				"additionalProperties":false
+			}`,
+		},
+		{
+			name: "Test with nullable tag",
+			in: struct {
+				Name *string `json:"name" nullable:"true"`
+			}{
+				Name: nil,
+			},
+			want: `{
+
+				"type":"object",
+				"properties":{
+					"name":{
+						"type":"string",
+						"nullable":true
+					}
+				},
+				"required":["name"],
+				"additionalProperties":false
+			}`,
+		},
+		{
+			name: "Test with exclude mark",
+			in: struct {
+				Name string `json:"-"`
+			}{
+				Name: "Name",
+			},
+			want: `{
+				"type":"object",
+				"additionalProperties":false
+			}`,
+		},
+		{
+			name: "Test with no json tag",
+			in: struct {
+				Name string
+			}{
+				Name: "",
+			},
+			want: `{
+				"type":"object",
+				"properties":{
+					"Name":{
+						"type":"string"
+					}
+				},
+				"required":["Name"],
+				"additionalProperties":false
+			}`,
+		},
+		{
+			name: "Test with omitempty tag",
+			in: struct {
+				Name string `json:"name,omitempty"`
+			}{
+				Name: "",
+			},
+			want: `{
+				"type":"object",
+				"properties":{
+					"name":{
+						"type":"string"
+					}
+				},
+				"additionalProperties":false
+			}`,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			wantBytes := []byte(tt.want)
+
+			schema, err := jsonschema.GenerateSchemaForType(tt.in)
+			if err != nil {
+				t.Errorf("Failed to generate schema: error = %v", err)
+				return
+			}
+
+			var want map[string]interface{}
+			err = json.Unmarshal(wantBytes, &want)
+			if err != nil {
+				t.Errorf("Failed to Unmarshal JSON: error = %v", err)
+				return
+			}
+
+			got := structToMap(t, schema)
+			gotPtr := structToMap(t, &schema)
+
+			if !reflect.DeepEqual(got, want) {
+				t.Errorf("MarshalJSON() got = %v, want %v", got, want)
+			}
+			if !reflect.DeepEqual(gotPtr, want) {
+				t.Errorf("MarshalJSON() gotPtr = %v, want %v", gotPtr, want)
+			}
+		})
+	}
+}
+
 func structToMap(t *testing.T, v any) map[string]any {
 	t.Helper()
 	gotBytes, err := json.Marshal(v)
--- a/jsonschema/validate_test.go
+++ b/jsonschema/validate_test.go
@@ -3,7 +3,7 @@ package jsonschema_test
 import (
 	"testing"

-	"github.com/sashabaranov/go-openai/jsonschema"
+	"git.vaala.cloud/VaalaCat/go-openai/jsonschema"
 )

 func Test_Validate(t *testing.T) {
--- a/messages.go
+++ b/messages.go
@@ -41,6 +41,7 @@ type MessageContent struct {
 	Type      string       `json:"type"`
 	Text      *MessageText `json:"text,omitempty"`
 	ImageFile *ImageFile   `json:"image_file,omitempty"`
+	ImageURL  *ImageURL    `json:"image_url,omitempty"`
 }
 type MessageText struct {
 	Value       string `json:"value"`
@@ -51,6 +52,11 @@ type ImageFile struct {
 	FileID string `json:"file_id"`
 }

+type ImageURL struct {
+	URL    string `json:"url"`
+	Detail string `json:"detail"`
+}
+
 type MessageRequest struct {
 	Role        string             `json:"role"`
 	Content     string             `json:"content"`
--- a/messages_test.go
+++ b/messages_test.go
@@ -7,9 +7,9 @@ import (
 	"net/http"
 	"testing"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 var emptyStr = ""
--- a/models_test.go
+++ b/models_test.go
@@ -9,8 +9,8 @@ import (
 	"testing"
 	"time"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 const testFineTuneModelID = "fine-tune-model-id"
@@ -47,6 +47,24 @@ func TestGetModel(t *testing.T) {
 	checks.NoError(t, err, "GetModel error")
 }

+// TestGetModelO3 Tests the retrieve O3 model endpoint of the API using the mocked server.
+func TestGetModelO3(t *testing.T) {
+	client, server, teardown := setupOpenAITestServer()
+	defer teardown()
+	server.RegisterHandler("/v1/models/o3", handleGetModelEndpoint)
+	_, err := client.GetModel(context.Background(), "o3")
+	checks.NoError(t, err, "GetModel error for O3")
+}
+
+// TestGetModelO4Mini Tests the retrieve O4Mini model endpoint of the API using the mocked server.
+func TestGetModelO4Mini(t *testing.T) {
+	client, server, teardown := setupOpenAITestServer()
+	defer teardown()
+	server.RegisterHandler("/v1/models/o4-mini", handleGetModelEndpoint)
+	_, err := client.GetModel(context.Background(), "o4-mini")
+	checks.NoError(t, err, "GetModel error for O4Mini")
+}
+
 func TestAzureGetModel(t *testing.T) {
 	client, server, teardown := setupAzureTestServer()
 	defer teardown()
--- a/moderation_test.go
+++ b/moderation_test.go
@@ -11,8 +11,8 @@ import (
 	"testing"
 	"time"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 // TestModeration Tests the moderations endpoint of the API using the mocked server.
--- a/openai_test.go
+++ b/openai_test.go
@@ -1,8 +1,8 @@
 package openai_test

 import (
-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test"
 )

 func setupOpenAITestServer() (client *openai.Client, server *test.ServerTest, teardown func()) {
@@ -29,9 +29,9 @@ func setupAzureTestServer() (client *openai.Client, server *test.ServerTest, tea

 // numTokens Returns the number of GPT-3 encoded tokens in the given text.
 // This function approximates based on the rule of thumb stated by OpenAI:
-// https://beta.openai.com/tokenizer
+// https://beta.openai.com/tokenizer.
 //
-// TODO: implement an actual tokenizer for GPT-3 and Codex (once available)
+// TODO: implement an actual tokenizer for GPT-3 and Codex (once available).
 func numTokens(s string) int {
 	return int(float32(len(s)) / 4)
 }
--- a/reasoning_validator.go
+++ b/reasoning_validator.go
@@ -0,0 +1,81 @@
+package openai
+
+import (
+	"errors"
+	"strings"
+)
+
+var (
+	// Deprecated: use ErrReasoningModelMaxTokensDeprecated instead.
+	ErrO1MaxTokensDeprecated                   = errors.New("this model is not supported MaxTokens, please use MaxCompletionTokens")                               //nolint:lll
+	ErrCompletionUnsupportedModel              = errors.New("this model is not supported with this method, please use CreateChatCompletion client method instead") //nolint:lll
+	ErrCompletionStreamNotSupported            = errors.New("streaming is not supported with this method, please use CreateCompletionStream")                      //nolint:lll
+	ErrCompletionRequestPromptTypeNotSupported = errors.New("the type of CompletionRequest.Prompt only supports string and []string")                              //nolint:lll
+)
+
+var (
+	ErrO1BetaLimitationsMessageTypes = errors.New("this model has beta-limitations, user and assistant messages only, system messages are not supported")       //nolint:lll
+	ErrO1BetaLimitationsTools        = errors.New("this model has beta-limitations, tools, function calling, and response format parameters are not supported") //nolint:lll
+	// Deprecated: use ErrReasoningModelLimitations* instead.
+	ErrO1BetaLimitationsLogprobs = errors.New("this model has beta-limitations, logprobs not supported")                                                                               //nolint:lll
+	ErrO1BetaLimitationsOther    = errors.New("this model has beta-limitations, temperature, top_p and n are fixed at 1, while presence_penalty and frequency_penalty are fixed at 0") //nolint:lll
+)
+
+var (
+	//nolint:lll
+	ErrReasoningModelMaxTokensDeprecated = errors.New("this model is not supported MaxTokens, please use MaxCompletionTokens")
+	ErrReasoningModelLimitationsLogprobs = errors.New("this model has beta-limitations, logprobs not supported")                                                                               //nolint:lll
+	ErrReasoningModelLimitationsOther    = errors.New("this model has beta-limitations, temperature, top_p and n are fixed at 1, while presence_penalty and frequency_penalty are fixed at 0") //nolint:lll
+)
+
+// ReasoningValidator handles validation for o-series model requests.
+type ReasoningValidator struct{}
+
+// NewReasoningValidator creates a new validator for o-series models.
+func NewReasoningValidator() *ReasoningValidator {
+	return &ReasoningValidator{}
+}
+
+// Validate performs all validation checks for o-series models.
+func (v *ReasoningValidator) Validate(request ChatCompletionRequest) error {
+	o1Series := strings.HasPrefix(request.Model, "o1")
+	o3Series := strings.HasPrefix(request.Model, "o3")
+	o4Series := strings.HasPrefix(request.Model, "o4")
+
+	if !o1Series && !o3Series && !o4Series {
+		return nil
+	}
+
+	if err := v.validateReasoningModelParams(request); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// validateReasoningModelParams checks reasoning model parameters.
+func (v *ReasoningValidator) validateReasoningModelParams(request ChatCompletionRequest) error {
+	if request.MaxTokens > 0 {
+		return ErrReasoningModelMaxTokensDeprecated
+	}
+	if request.LogProbs {
+		return ErrReasoningModelLimitationsLogprobs
+	}
+	if request.Temperature > 0 && request.Temperature != 1 {
+		return ErrReasoningModelLimitationsOther
+	}
+	if request.TopP > 0 && request.TopP != 1 {
+		return ErrReasoningModelLimitationsOther
+	}
+	if request.N > 0 && request.N != 1 {
+		return ErrReasoningModelLimitationsOther
+	}
+	if request.PresencePenalty > 0 {
+		return ErrReasoningModelLimitationsOther
+	}
+	if request.FrequencyPenalty > 0 {
+		return ErrReasoningModelLimitationsOther
+	}
+
+	return nil
+}
--- a/run.go
+++ b/run.go
@@ -83,12 +83,13 @@ const (
 )

 type RunRequest struct {
-	AssistantID            string         `json:"assistant_id"`
-	Model                  string         `json:"model,omitempty"`
-	Instructions           string         `json:"instructions,omitempty"`
-	AdditionalInstructions string         `json:"additional_instructions,omitempty"`
-	Tools                  []Tool         `json:"tools,omitempty"`
-	Metadata               map[string]any `json:"metadata,omitempty"`
+	AssistantID            string          `json:"assistant_id"`
+	Model                  string          `json:"model,omitempty"`
+	Instructions           string          `json:"instructions,omitempty"`
+	AdditionalInstructions string          `json:"additional_instructions,omitempty"`
+	AdditionalMessages     []ThreadMessage `json:"additional_messages,omitempty"`
+	Tools                  []Tool          `json:"tools,omitempty"`
+	Metadata               map[string]any  `json:"metadata,omitempty"`

 	// Sampling temperature between 0 and 2. Higher values like 0.8 are  more random.
 	// lower values are more focused and deterministic.
--- a/run_test.go
+++ b/run_test.go
@@ -3,8 +3,8 @@ package openai_test
 import (
 	"context"

-	openai "github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	openai "git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"

 	"encoding/json"
 	"fmt"
--- a/speech.go
+++ b/speech.go
@@ -8,20 +8,25 @@ import (
 type SpeechModel string

 const (
-	TTSModel1      SpeechModel = "tts-1"
-	TTSModel1HD    SpeechModel = "tts-1-hd"
-	TTSModelCanary SpeechModel = "canary-tts"
+	TTSModel1         SpeechModel = "tts-1"
+	TTSModel1HD       SpeechModel = "tts-1-hd"
+	TTSModelCanary    SpeechModel = "canary-tts"
+	TTSModelGPT4oMini SpeechModel = "gpt-4o-mini-tts"
 )

 type SpeechVoice string

 const (
 	VoiceAlloy   SpeechVoice = "alloy"
+	VoiceAsh     SpeechVoice = "ash"
+	VoiceBallad  SpeechVoice = "ballad"
+	VoiceCoral   SpeechVoice = "coral"
 	VoiceEcho    SpeechVoice = "echo"
 	VoiceFable   SpeechVoice = "fable"
 	VoiceOnyx    SpeechVoice = "onyx"
 	VoiceNova    SpeechVoice = "nova"
 	VoiceShimmer SpeechVoice = "shimmer"
+	VoiceVerse   SpeechVoice = "verse"
 )

 type SpeechResponseFormat string
@@ -39,6 +44,7 @@ type CreateSpeechRequest struct {
 	Model          SpeechModel          `json:"model"`
 	Input          string               `json:"input"`
 	Voice          SpeechVoice          `json:"voice"`
+	Instructions   string               `json:"instructions,omitempty"`    // Optional, Doesnt work with tts-1 or tts-1-hd.
 	ResponseFormat SpeechResponseFormat `json:"response_format,omitempty"` // Optional, default to mp3
 	Speed          float64              `json:"speed,omitempty"`           // Optional, default to 1.0
 }
--- a/speech_test.go
+++ b/speech_test.go
@@ -11,9 +11,9 @@ import (
 	"path/filepath"
 	"testing"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 func TestSpeechIntegration(t *testing.T) {
@@ -21,10 +21,8 @@ func TestSpeechIntegration(t *testing.T) {
 	defer teardown()

 	server.RegisterHandler("/v1/audio/speech", func(w http.ResponseWriter, r *http.Request) {
-		dir, cleanup := test.CreateTestDirectory(t)
-		path := filepath.Join(dir, "fake.mp3")
+		path := filepath.Join(t.TempDir(), "fake.mp3")
 		test.CreateTestFile(t, path)
-		defer cleanup()

 		// audio endpoints only accept POST requests
 		if r.Method != "POST" {
--- a/stream_reader.go
+++ b/stream_reader.go
@@ -6,13 +6,14 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"regexp"

-	utils "github.com/sashabaranov/go-openai/internal"
+	utils "git.vaala.cloud/VaalaCat/go-openai/internal"
 )

 var (
-	headerData  = []byte("data: ")
-	errorPrefix = []byte(`data: {"error":`)
+	headerData  = regexp.MustCompile(`^data:\s*`)
+	errorPrefix = regexp.MustCompile(`^data:\s*{"error":`)
 )

 type streamable interface {
@@ -32,17 +33,28 @@ type streamReader[T streamable] struct {
 }

 func (stream *streamReader[T]) Recv() (response T, err error) {
-	if stream.isFinished {
-		err = io.EOF
+	rawLine, err := stream.RecvRaw()
+	if err != nil {
 		return
 	}

-	response, err = stream.processLines()
-	return
+	err = stream.unmarshaler.Unmarshal(rawLine, &response)
+	if err != nil {
+		return
+	}
+	return response, nil
+}
+
+func (stream *streamReader[T]) RecvRaw() ([]byte, error) {
+	if stream.isFinished {
+		return nil, io.EOF
+	}
+
+	return stream.processLines()
 }

 //nolint:gocognit
-func (stream *streamReader[T]) processLines() (T, error) {
+func (stream *streamReader[T]) processLines() ([]byte, error) {
 	var (
 		emptyMessagesCount uint
 		hasErrorPrefix     bool
@@ -53,44 +65,38 @@ func (stream *streamReader[T]) processLines() (T, error) {
 		if readErr != nil || hasErrorPrefix {
 			respErr := stream.unmarshalError()
 			if respErr != nil {
-				return *new(T), fmt.Errorf("error, %w", respErr.Error)
+				return nil, fmt.Errorf("error, %w", respErr.Error)
 			}
-			return *new(T), readErr
+			return nil, readErr
 		}

 		noSpaceLine := bytes.TrimSpace(rawLine)
-		if bytes.HasPrefix(noSpaceLine, errorPrefix) {
+		if errorPrefix.Match(noSpaceLine) {
 			hasErrorPrefix = true
 		}
-		if !bytes.HasPrefix(noSpaceLine, headerData) || hasErrorPrefix {
+		if !headerData.Match(noSpaceLine) || hasErrorPrefix {
 			if hasErrorPrefix {
-				noSpaceLine = bytes.TrimPrefix(noSpaceLine, headerData)
+				noSpaceLine = headerData.ReplaceAll(noSpaceLine, nil)
 			}
 			writeErr := stream.errAccumulator.Write(noSpaceLine)
 			if writeErr != nil {
-				return *new(T), writeErr
+				return nil, writeErr
 			}
 			emptyMessagesCount++
 			if emptyMessagesCount > stream.emptyMessagesLimit {
-				return *new(T), ErrTooManyEmptyStreamMessages
+				return nil, ErrTooManyEmptyStreamMessages
 			}

 			continue
 		}

-		noPrefixLine := bytes.TrimPrefix(noSpaceLine, headerData)
+		noPrefixLine := headerData.ReplaceAll(noSpaceLine, nil)
 		if string(noPrefixLine) == "[DONE]" {
 			stream.isFinished = true
-			return *new(T), io.EOF
+			return nil, io.EOF
 		}

-		var response T
-		unmarshalErr := stream.unmarshaler.Unmarshal(noPrefixLine, &response)
-		if unmarshalErr != nil {
-			return *new(T), unmarshalErr
-		}
-
-		return response, nil
+		return noPrefixLine, nil
 	}
 }

--- a/stream_reader_test.go
+++ b/stream_reader_test.go
@@ -6,9 +6,9 @@ import (
 	"errors"
 	"testing"

-	utils "github.com/sashabaranov/go-openai/internal"
-	"github.com/sashabaranov/go-openai/internal/test"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	utils "git.vaala.cloud/VaalaCat/go-openai/internal"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 var errTestUnmarshalerFailed = errors.New("test unmarshaler failed")
@@ -63,3 +63,16 @@ func TestStreamReaderReturnsErrTestErrorAccumulatorWriteFailed(t *testing.T) {
 	_, err := stream.Recv()
 	checks.ErrorIs(t, err, test.ErrTestErrorAccumulatorWriteFailed, "Did not return error when write failed", err.Error())
 }
+
+func TestStreamReaderRecvRaw(t *testing.T) {
+	stream := &streamReader[ChatCompletionStreamResponse]{
+		reader: bufio.NewReader(bytes.NewReader([]byte("data: {\"key\": \"value\"}\n"))),
+	}
+	rawLine, err := stream.RecvRaw()
+	if err != nil {
+		t.Fatalf("Did not return raw line: %v", err)
+	}
+	if !bytes.Equal(rawLine, []byte("{\"key\": \"value\"}")) {
+		t.Fatalf("Did not return raw line: %v", string(rawLine))
+	}
+}
--- a/stream_test.go
+++ b/stream_test.go
@@ -10,8 +10,8 @@ import (
 	"testing"
 	"time"

-	"github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	"git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 func TestCompletionsStreamWrongModel(t *testing.T) {
--- a/thread_test.go
+++ b/thread_test.go
@@ -7,8 +7,8 @@ import (
 	"net/http"
 	"testing"

-	openai "github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	openai "git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"
 )

 // TestThread Tests the thread endpoint of the API using the mocked server.
--- a/vector_store_test.go
+++ b/vector_store_test.go
@@ -3,8 +3,8 @@ package openai_test
 import (
 	"context"

-	openai "github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
+	openai "git.vaala.cloud/VaalaCat/go-openai"
+	"git.vaala.cloud/VaalaCat/go-openai/internal/test/checks"

 	"encoding/json"
 	"fmt"
Author	SHA1	Message	Date
VaalaCat	2436e7afb8	feat: add reasoning format	2025-06-15 12:59:44 +00:00
VaalaCat	67f3b169df	feat: add include_reasoning	2025-06-15 12:59:08 +00:00
VaalaCat	3640274cd1	feat: change repo name	2025-06-15 12:58:45 +00:00
JT A.	ff9d83a485	skip json field (#1009 ) * skip json field * backfill some coverage and tests	2025-05-29 11:31:35 +01:00
Axb12	8c65b35c57	update image api os.File to io.Reader (#994 ) update image api os.File to io.Reader update code style * add reader test * supplementary reader test * update the reader in the form builder test * add commnet * update comment * update code style	2025-05-20 14:45:40 +01:00
Alex Baranov	4d2e7ab29d	fix lint (#998 )	2025-05-13 12:59:06 +01:00
Justa	6aaa732296	add ChatTemplateKwargs to ChatCompletionRequest (#980 ) Co-authored-by: Justa <justa.cai@akuvox.com>	2025-05-13 12:52:44 +01:00
Pedro Chaparro	0116f2994d	feat: add support for image generation using `gpt-image-1` (#971 ) * feat: add gpt-image-1 support * feat: add example to generate image using gpt-image-1 model * style: missing period in comments * feat: add missing fields to example * docs: add GPT Image 1 to README * revert: keep `examples/images/main.go` unchanged * docs: remove unnecessary newline from example in README file	2025-05-13 12:51:08 +01:00
Alex Baranov	8ba38f6ba1	remove backup file (#996 )	2025-05-13 12:44:16 +01:00
Alex Baranov	6181facea7	update codecov action, pass token (#987 )	2025-05-04 15:45:40 +01:00
Alex Baranov	77ccac8d34	Upgrade golangci-lint to 2.1.5 (#986 ) * Upgrade golangci-lint to 2.1.5 * update action	2025-05-03 22:39:47 +01:00
Alex Baranov	5ea214a188	Improve unit test coverage (#984 ) * add tests for config * add audio tests * lint * lint * lint	2025-05-03 22:25:14 +01:00
Ben Katz	d65f0cb54e	Fix: Corrected typo in O4Mini20250416 model name and endpoint map. (#981 )	2025-05-03 21:44:48 +01:00
Daniel Peng	93a611cf4f	Add Prediction field (#970 ) * Add Prediction field to ChatCompletionRequest * Include prediction tokens in response	2025-04-29 14:38:27 +01:00
Oleksandr Redko	6836cf6a6f	Remove redundant typecheck linter (#955 )	2025-04-29 14:36:38 +01:00
Sean McGinnis	da5f9bc9bc	Add CompletionRequest.StreamOptions (#959 ) The legacy completion API supports a `stream_options` object when `stream` is set to true [0]. This adds a StreamOptions property to the CompletionRequest struct to support this setting. [0] https://platform.openai.com/docs/api-reference/completions/create#completions-create-stream_options Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>	2025-04-29 14:35:26 +01:00
rory malcolm	bb5bc27567	Add support for `4o-mini` and `3o` (#968 ) - This adds supports, and tests, for the 3o and 4o-mini class of models	2025-04-29 14:34:33 +01:00
Zhongxian Pan	4cccc6c934	Adapt different stream data prefix, with or without space (#945 )	2025-04-29 14:29:15 +01:00
goodenough	306fbbbe6f	Add support for reasoning_content field in chat completion messages for DeepSeek R1 (#925 ) * support deepseek field "reasoning_content" * support deepseek field "reasoning_content" * Comment ends in a period (godot) * add comment on field reasoning_content * fix go lint error * chore: trigger CI * make field "content" in MarshalJSON function omitempty * remove reasoning_content in TestO1ModelChatCompletions func * feat: Add test and handler for deepseek-reasoner chat model completions, including support for reasoning content in responses. * feat: Add test and handler for deepseek-reasoner chat model completions, including support for reasoning content in responses. * feat: Add test and handler for deepseek-reasoner chat model completions, including support for reasoning content in responses.	2025-04-29 14:24:45 +01:00
netr	658beda2ba	feat: Add missing TTS models and voices (#958 ) * feat: Add missing TTS models and voices * feat: Add new instruction field to create speech request - From docs: Control the voice of your generated audio with additional instructions. Does not work with tts-1 or tts-1-hd. * fix: add canary-tts back to SpeechModel	2025-04-26 11:13:43 +01:00
Takahiro Ikeuchi	d68a683815	feat: add new GPT-4.1 model variants to completion.go (#966 ) * feat: add new GPT-4.1 model variants to completion.go * feat: add tests for unsupported models in completion endpoint * fix: add missing periods to test function comments in completion_test.go	2025-04-23 22:50:47 +01:00
JT A.	e99eb54c9d	add enum tag to jsonschema (#962 ) * fix jsonschema tests * ensure all run during PR Github Action * add test for struct to schema * add support for enum tag * support nullable tag	2025-04-13 19:00:48 +01:00
Liu Shuang	74d6449f22	feat: add gpt-4.5-preview models (#947 )	2025-03-04 08:26:59 +00:00
Alex Baranov	261721bfdb	Fix linter (#943 ) * fix lint * remove linters	2025-02-25 16:56:35 +00:00
Dan Ackerson	be2e2387d4	feat: add Anthropic API support with custom version header (#934 ) * feat: add Anthropic API support with custom version header * refactor: use switch statement for API type header handling * refactor: add OpenAI & AzureAD types to be exhaustive * Update client.go need explicit fallthrough in empty case statements * constant for APIVersion; addtl tests	2025-02-25 11:03:38 +00:00
Liu Shuang	85f578b865	fix: remove validateO1Specific (#939 ) * fix: remove validateO1Specific * update golangci-lint-action version * fix actions * fix actions * fix actions * fix actions * remove some o1 test	2025-02-17 11:29:18 +00:00
Liu Shuang	c0a9a75fe0	feat: add developer role (#936 )	2025-02-12 15:05:44 +00:00
Mazyar Yousefiniyae shad	a62919e8c6	ref: add image url support to messages (#933 ) Some checks failed Integration tests / Run integration tests (push) Has been cancelled Sanity check / Sanity check (push) Has been cancelled * ref: add image url support to messages * fix linter error * fix linter error	2025-02-09 18:36:44 +00:00
rory malcolm	2054db016c	Add support for O3-mini (#930 ) * Add support for O3-mini - Add support for the o3 mini set of models, including tests that match the constraints in OpenAI's API docs (https://platform.openai.com/docs/models#o3-mini). * Deprecate and refactor - Deprecate `ErrO1BetaLimitationsLogprobs` and `ErrO1BetaLimitationsOther` - Implement `validationRequestForReasoningModels`, which works on both o1 & o3, and has per-model-type restrictions on functionality (eg, o3 class are allowed function calls and system messages, o1 isn't) * Move reasoning validation to `reasoning_validator.go` - Add a `NewReasoningValidator` which exposes a `Validate()` method for a given request - Also adds a test for chat streams * Final nits	2025-02-06 14:53:19 +00:00
saileshd1402	45aa99607b	Make "Content" field in "ChatCompletionMessage" omitempty (#926 )	2025-01-31 19:05:29 +00:00
Trevor Creech	9823a8bbbd	Chat Completion API: add ReasoningEffort and new o1 models (#928 ) * add reasoning_effort param * add o1 model * fix lint	2025-01-31 18:57:57 +00:00
Oleksandr Redko	7a2915a37d	Simplify tests with T.TempDir (#929 )	2025-01-31 18:55:41 +00:00
Sabuhi Gurbani	2a0ff5ac63	Added additional_messages (#914 )	2024-12-27 10:01:16 +00:00
Alex Baranov	56a9acf86f	Ignore test.mp3 (#913 )	2024-12-08 13:16:48 +00:00
Tim Misiak	af5355f5b1	Fix ID field to be optional (#911 ) The ID field is not always present for streaming responses. Without omitempty, the entire ToolCall struct will be missing.	2024-12-08 13:12:05 +00:00
Qiying Wang	c203ca001f	feat: add RecvRaw (#896 )	2024-11-30 10:29:05 +00:00
Liu Shuang	21fa42c18d	feat: add gpt-4o-2024-11-20 model (#905 )	2024-11-30 09:39:47 +00:00