release: 1.4.0

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "1.3.0"
+  ".": "1.4.0"
 }

.stats.yml

@@ -1,4 +1,4 @@
 configured_endpoints: 97
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/openai%2Fopenai-0205acb1015d29b2312a48526734c0399f93026d4fe2dff5c7768f566e333fd2.yml
-openapi_spec_hash: 1772cc9056c2f6dfb2a4e9cb77ee6343
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/openai%2Fopenai-4865dda2b62927bd141cbc85f81be3d88602f103e2c581e15eb1caded3e3aaa2.yml
+openapi_spec_hash: 7d14a9b23ef4ac93ea46d629601b6f6b
 config_hash: ed1e6b3c5f93d12b80d31167f55c557c

CHANGELOG.md

@@ -1,5 +1,18 @@
 # Changelog
 
+## 1.4.0 (2025-06-09)
+
+Full Changelog: [v1.3.0...v1.4.0](https://github.com/openai/openai-go/compare/v1.3.0...v1.4.0)
+
+### Features
+
+* **client:** allow overriding unions ([27c6299](https://github.com/openai/openai-go/commit/27c6299cb4ac275c6542b5691d81b795e65eeff6))
+
+
+### Bug Fixes
+
+* **client:** cast to raw message when converting to params ([a3282b0](https://github.com/openai/openai-go/commit/a3282b01a8d9a2c0cd04f24b298bf2ffcd160ebd))
+
 ## 1.3.0 (2025-06-03)
 
 Full Changelog: [v1.2.1...v1.3.0](https://github.com/openai/openai-go/compare/v1.2.1...v1.3.0)

README.md

@@ -26,7 +26,7 @@ Or to pin the version:
 <!-- x-release-please-start-version -->
 
 ```sh
-go get -u 'github.com/openai/openai-go@v1.3.0'
+go get -u 'github.com/openai/openai-go@v1.4.0'
 ```
 
 <!-- x-release-please-end -->

audiotranscription.go

@@ -398,7 +398,7 @@ type AudioTranscriptionNewParamsChunkingStrategyUnion struct {
 }
 
 func (u AudioTranscriptionNewParamsChunkingStrategyUnion) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[AudioTranscriptionNewParamsChunkingStrategyUnion](u.OfAuto, u.OfAudioTranscriptionNewsChunkingStrategyVadConfig)
+	return param.MarshalUnion(u, u.OfAuto, u.OfAudioTranscriptionNewsChunkingStrategyVadConfig)
 }
 func (u *AudioTranscriptionNewParamsChunkingStrategyUnion) UnmarshalJSON(data []byte) error {
 	return apijson.UnmarshalRoot(data, u)

betaassistant.go

@@ -1407,7 +1407,7 @@ func (r *AssistantToolUnion) UnmarshalJSON(data []byte) error {
 // be used at the last possible moment before sending a request. Test for this with
 // AssistantToolUnionParam.Overrides()
 func (r AssistantToolUnion) ToParam() AssistantToolUnionParam {
-	return param.Override[AssistantToolUnionParam](r.RawJSON())
+	return param.Override[AssistantToolUnionParam](json.RawMessage(r.RawJSON()))
 }
 
 func AssistantToolParamOfFunction(function shared.FunctionDefinitionParam) AssistantToolUnionParam {
@@ -1427,7 +1427,7 @@ type AssistantToolUnionParam struct {
 }
 
 func (u AssistantToolUnionParam) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[AssistantToolUnionParam](u.OfCodeInterpreter, u.OfFileSearch, u.OfFunction)
+	return param.MarshalUnion(u, u.OfCodeInterpreter, u.OfFileSearch, u.OfFunction)
 }
 func (u *AssistantToolUnionParam) UnmarshalJSON(data []byte) error {
 	return apijson.UnmarshalRoot(data, u)
@@ -1504,7 +1504,7 @@ func (r *CodeInterpreterTool) UnmarshalJSON(data []byte) error {
 // be used at the last possible moment before sending a request. Test for this with
 // CodeInterpreterToolParam.Overrides()
 func (r CodeInterpreterTool) ToParam() CodeInterpreterToolParam {
-	return param.Override[CodeInterpreterToolParam](r.RawJSON())
+	return param.Override[CodeInterpreterToolParam](json.RawMessage(r.RawJSON()))
 }
 
 func NewCodeInterpreterToolParam() CodeInterpreterToolParam {
@@ -1555,7 +1555,7 @@ func (r *FileSearchTool) UnmarshalJSON(data []byte) error {
 // be used at the last possible moment before sending a request. Test for this with
 // FileSearchToolParam.Overrides()
 func (r FileSearchTool) ToParam() FileSearchToolParam {
-	return param.Override[FileSearchToolParam](r.RawJSON())
+	return param.Override[FileSearchToolParam](json.RawMessage(r.RawJSON()))
 }
 
 // Overrides for the file search tool.
@@ -1728,7 +1728,7 @@ func (r *FunctionTool) UnmarshalJSON(data []byte) error {
 // be used at the last possible moment before sending a request. Test for this with
 // FunctionToolParam.Overrides()
 func (r FunctionTool) ToParam() FunctionToolParam {
-	return param.Override[FunctionToolParam](r.RawJSON())
+	return param.Override[FunctionToolParam](json.RawMessage(r.RawJSON()))
 }
 
 // The properties Function, Type are required.
@@ -1922,7 +1922,7 @@ type BetaAssistantNewParamsToolResourcesFileSearchVectorStoreChunkingStrategyUni
 }
 
 func (u BetaAssistantNewParamsToolResourcesFileSearchVectorStoreChunkingStrategyUnion) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[BetaAssistantNewParamsToolResourcesFileSearchVectorStoreChunkingStrategyUnion](u.OfAuto, u.OfStatic)
+	return param.MarshalUnion(u, u.OfAuto, u.OfStatic)
 }
 func (u *BetaAssistantNewParamsToolResourcesFileSearchVectorStoreChunkingStrategyUnion) UnmarshalJSON(data []byte) error {
 	return apijson.UnmarshalRoot(data, u)

betathread.go

@@ -185,7 +185,7 @@ func (r *AssistantResponseFormatOptionUnion) UnmarshalJSON(data []byte) error {
 // be used at the last possible moment before sending a request. Test for this with
 // AssistantResponseFormatOptionUnionParam.Overrides()
 func (r AssistantResponseFormatOptionUnion) ToParam() AssistantResponseFormatOptionUnionParam {
-	return param.Override[AssistantResponseFormatOptionUnionParam](r.RawJSON())
+	return param.Override[AssistantResponseFormatOptionUnionParam](json.RawMessage(r.RawJSON()))
 }
 
 func AssistantResponseFormatOptionParamOfAuto() AssistantResponseFormatOptionUnionParam {
@@ -211,7 +211,7 @@ type AssistantResponseFormatOptionUnionParam struct {
 }
 
 func (u AssistantResponseFormatOptionUnionParam) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[AssistantResponseFormatOptionUnionParam](u.OfAuto, u.OfText, u.OfJSONObject, u.OfJSONSchema)
+	return param.MarshalUnion(u, u.OfAuto, u.OfText, u.OfJSONObject, u.OfJSONSchema)
 }
 func (u *AssistantResponseFormatOptionUnionParam) UnmarshalJSON(data []byte) error {
 	return apijson.UnmarshalRoot(data, u)
@@ -279,7 +279,7 @@ func (r *AssistantToolChoice) UnmarshalJSON(data []byte) error {
 // be used at the last possible moment before sending a request. Test for this with
 // AssistantToolChoiceParam.Overrides()
 func (r AssistantToolChoice) ToParam() AssistantToolChoiceParam {
-	return param.Override[AssistantToolChoiceParam](r.RawJSON())
+	return param.Override[AssistantToolChoiceParam](json.RawMessage(r.RawJSON()))
 }
 
 // The type of the tool. If type is `function`, the function name must be set
@@ -336,7 +336,7 @@ func (r *AssistantToolChoiceFunction) UnmarshalJSON(data []byte) error {
 // be used at the last possible moment before sending a request. Test for this with
 // AssistantToolChoiceFunctionParam.Overrides()
 func (r AssistantToolChoiceFunction) ToParam() AssistantToolChoiceFunctionParam {
-	return param.Override[AssistantToolChoiceFunctionParam](r.RawJSON())
+	return param.Override[AssistantToolChoiceFunctionParam](json.RawMessage(r.RawJSON()))
 }
 
 // The property Name is required.
@@ -400,7 +400,7 @@ func (r *AssistantToolChoiceOptionUnion) UnmarshalJSON(data []byte) error {
 // be used at the last possible moment before sending a request. Test for this with
 // AssistantToolChoiceOptionUnionParam.Overrides()
 func (r AssistantToolChoiceOptionUnion) ToParam() AssistantToolChoiceOptionUnionParam {
-	return param.Override[AssistantToolChoiceOptionUnionParam](r.RawJSON())
+	return param.Override[AssistantToolChoiceOptionUnionParam](json.RawMessage(r.RawJSON()))
 }
 
 // `none` means the model will not call any tools and instead generates a message.
@@ -432,7 +432,7 @@ type AssistantToolChoiceOptionUnionParam struct {
 }
 
 func (u AssistantToolChoiceOptionUnionParam) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[AssistantToolChoiceOptionUnionParam](u.OfAuto, u.OfAssistantToolChoice)
+	return param.MarshalUnion(u, u.OfAuto, u.OfAssistantToolChoice)
 }
 func (u *AssistantToolChoiceOptionUnionParam) UnmarshalJSON(data []byte) error {
 	return apijson.UnmarshalRoot(data, u)
@@ -643,7 +643,7 @@ type BetaThreadNewParamsMessageContentUnion struct {
 }
 
 func (u BetaThreadNewParamsMessageContentUnion) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[BetaThreadNewParamsMessageContentUnion](u.OfString, u.OfArrayOfContentParts)
+	return param.MarshalUnion(u, u.OfString, u.OfArrayOfContentParts)
 }
 func (u *BetaThreadNewParamsMessageContentUnion) UnmarshalJSON(data []byte) error {
 	return apijson.UnmarshalRoot(data, u)
@@ -684,7 +684,7 @@ type BetaThreadNewParamsMessageAttachmentToolUnion struct {
 }
 
 func (u BetaThreadNewParamsMessageAttachmentToolUnion) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[BetaThreadNewParamsMessageAttachmentToolUnion](u.OfCodeInterpreter, u.OfFileSearch)
+	return param.MarshalUnion(u, u.OfCodeInterpreter, u.OfFileSearch)
 }
 func (u *BetaThreadNewParamsMessageAttachmentToolUnion) UnmarshalJSON(data []byte) error {
 	return apijson.UnmarshalRoot(data, u)
@@ -831,7 +831,7 @@ type BetaThreadNewParamsToolResourcesFileSearchVectorStoreChunkingStrategyUnion
 }
 
 func (u BetaThreadNewParamsToolResourcesFileSearchVectorStoreChunkingStrategyUnion) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[BetaThreadNewParamsToolResourcesFileSearchVectorStoreChunkingStrategyUnion](u.OfAuto, u.OfStatic)
+	return param.MarshalUnion(u, u.OfAuto, u.OfStatic)
 }
 func (u *BetaThreadNewParamsToolResourcesFileSearchVectorStoreChunkingStrategyUnion) UnmarshalJSON(data []byte) error {
 	return apijson.UnmarshalRoot(data, u)
@@ -1188,7 +1188,7 @@ type BetaThreadNewAndRunParamsThreadMessageContentUnion struct {
 }
 
 func (u BetaThreadNewAndRunParamsThreadMessageContentUnion) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[BetaThreadNewAndRunParamsThreadMessageContentUnion](u.OfString, u.OfArrayOfContentParts)
+	return param.MarshalUnion(u, u.OfString, u.OfArrayOfContentParts)
 }
 func (u *BetaThreadNewAndRunParamsThreadMessageContentUnion) UnmarshalJSON(data []byte) error {
 	return apijson.UnmarshalRoot(data, u)
@@ -1229,7 +1229,7 @@ type BetaThreadNewAndRunParamsThreadMessageAttachmentToolUnion struct {
 }
 
 func (u BetaThreadNewAndRunParamsThreadMessageAttachmentToolUnion) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[BetaThreadNewAndRunParamsThreadMessageAttachmentToolUnion](u.OfCodeInterpreter, u.OfFileSearch)
+	return param.MarshalUnion(u, u.OfCodeInterpreter, u.OfFileSearch)
 }
 func (u *BetaThreadNewAndRunParamsThreadMessageAttachmentToolUnion) UnmarshalJSON(data []byte) error {
 	return apijson.UnmarshalRoot(data, u)
@@ -1376,7 +1376,7 @@ type BetaThreadNewAndRunParamsThreadToolResourcesFileSearchVectorStoreChunkingSt
 }
 
 func (u BetaThreadNewAndRunParamsThreadToolResourcesFileSearchVectorStoreChunkingStrategyUnion) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[BetaThreadNewAndRunParamsThreadToolResourcesFileSearchVectorStoreChunkingStrategyUnion](u.OfAuto, u.OfStatic)
+	return param.MarshalUnion(u, u.OfAuto, u.OfStatic)
 }
 func (u *BetaThreadNewAndRunParamsThreadToolResourcesFileSearchVectorStoreChunkingStrategyUnion) UnmarshalJSON(data []byte) error {
 	return apijson.UnmarshalRoot(data, u)

betathreadmessage.go

@@ -511,7 +511,7 @@ func (r *ImageFile) UnmarshalJSON(data []byte) error {
 // be used at the last possible moment before sending a request. Test for this with
 // ImageFileParam.Overrides()
 func (r ImageFile) ToParam() ImageFileParam {
-	return param.Override[ImageFileParam](r.RawJSON())
+	return param.Override[ImageFileParam](json.RawMessage(r.RawJSON()))
 }
 
 // Specifies the detail level of the image if specified by the user. `low` uses
@@ -573,7 +573,7 @@ func (r *ImageFileContentBlock) UnmarshalJSON(data []byte) error {
 // be used at the last possible moment before sending a request. Test for this with
 // ImageFileContentBlockParam.Overrides()
 func (r ImageFileContentBlock) ToParam() ImageFileContentBlockParam {
-	return param.Override[ImageFileContentBlockParam](r.RawJSON())
+	return param.Override[ImageFileContentBlockParam](json.RawMessage(r.RawJSON()))
 }
 
 // References an image [File](https://platform.openai.com/docs/api-reference/files)
@@ -686,7 +686,7 @@ func (r *ImageURL) UnmarshalJSON(data []byte) error {
 // be used at the last possible moment before sending a request. Test for this with
 // ImageURLParam.Overrides()
 func (r ImageURL) ToParam() ImageURLParam {
-	return param.Override[ImageURLParam](r.RawJSON())
+	return param.Override[ImageURLParam](json.RawMessage(r.RawJSON()))
 }
 
 // Specifies the detail level of the image. `low` uses fewer tokens, you can opt in
@@ -746,7 +746,7 @@ func (r *ImageURLContentBlock) UnmarshalJSON(data []byte) error {
 // be used at the last possible moment before sending a request. Test for this with
 // ImageURLContentBlockParam.Overrides()
 func (r ImageURLContentBlock) ToParam() ImageURLContentBlockParam {
-	return param.Override[ImageURLContentBlockParam](r.RawJSON())
+	return param.Override[ImageURLContentBlockParam](json.RawMessage(r.RawJSON()))
 }
 
 // References an image URL in the content of a message.
@@ -1216,7 +1216,7 @@ type MessageContentPartParamUnion struct {
 }
 
 func (u MessageContentPartParamUnion) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[MessageContentPartParamUnion](u.OfImageFile, u.OfImageURL, u.OfText)
+	return param.MarshalUnion(u, u.OfImageFile, u.OfImageURL, u.OfText)
 }
 func (u *MessageContentPartParamUnion) UnmarshalJSON(data []byte) error {
 	return apijson.UnmarshalRoot(data, u)
@@ -1541,7 +1541,7 @@ type BetaThreadMessageNewParamsContentUnion struct {
 }
 
 func (u BetaThreadMessageNewParamsContentUnion) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[BetaThreadMessageNewParamsContentUnion](u.OfString, u.OfArrayOfContentParts)
+	return param.MarshalUnion(u, u.OfString, u.OfArrayOfContentParts)
 }
 func (u *BetaThreadMessageNewParamsContentUnion) UnmarshalJSON(data []byte) error {
 	return apijson.UnmarshalRoot(data, u)
@@ -1595,7 +1595,7 @@ type BetaThreadMessageNewParamsAttachmentToolUnion struct {
 }
 
 func (u BetaThreadMessageNewParamsAttachmentToolUnion) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[BetaThreadMessageNewParamsAttachmentToolUnion](u.OfCodeInterpreter, u.OfFileSearch)
+	return param.MarshalUnion(u, u.OfCodeInterpreter, u.OfFileSearch)
 }
 func (u *BetaThreadMessageNewParamsAttachmentToolUnion) UnmarshalJSON(data []byte) error {
 	return apijson.UnmarshalRoot(data, u)

betathreadrun.go

@@ -741,7 +741,7 @@ type BetaThreadRunNewParamsAdditionalMessageContentUnion struct {
 }
 
 func (u BetaThreadRunNewParamsAdditionalMessageContentUnion) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[BetaThreadRunNewParamsAdditionalMessageContentUnion](u.OfString, u.OfArrayOfContentParts)
+	return param.MarshalUnion(u, u.OfString, u.OfArrayOfContentParts)
 }
 func (u *BetaThreadRunNewParamsAdditionalMessageContentUnion) UnmarshalJSON(data []byte) error {
 	return apijson.UnmarshalRoot(data, u)
@@ -782,7 +782,7 @@ type BetaThreadRunNewParamsAdditionalMessageAttachmentToolUnion struct {
 }
 
 func (u BetaThreadRunNewParamsAdditionalMessageAttachmentToolUnion) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[BetaThreadRunNewParamsAdditionalMessageAttachmentToolUnion](u.OfCodeInterpreter, u.OfFileSearch)
+	return param.MarshalUnion(u, u.OfCodeInterpreter, u.OfFileSearch)
 }
 func (u *BetaThreadRunNewParamsAdditionalMessageAttachmentToolUnion) UnmarshalJSON(data []byte) error {
 	return apijson.UnmarshalRoot(data, u)