diff --git a/betathreadmessage.go b/betathreadmessage.go
index b7eec7d..bc7b418 100644
--- a/betathreadmessage.go
+++ b/betathreadmessage.go
@@ -926,7 +926,7 @@ func (r *MessageAttachment) UnmarshalJSON(data []byte) error {
 }
 
 // MessageAttachmentToolUnion contains all possible properties and values from
-// [CodeInterpreterTool], [MessageAttachmentToolAssistantToolsFileSearchTypeOnly].
+// [CodeInterpreterTool], [MessageAttachmentToolFileSearchTool].
 //
 // Use the methods beginning with 'As' to cast the union to one of its variants.
 type MessageAttachmentToolUnion struct {
@@ -942,7 +942,7 @@ func (u MessageAttachmentToolUnion) AsCodeInterpreterTool() (v CodeInterpreterTo
 	return
 }
 
-func (u MessageAttachmentToolUnion) AsFileSearchTool() (v MessageAttachmentToolAssistantToolsFileSearchTypeOnly) {
+func (u MessageAttachmentToolUnion) AsFileSearchTool() (v MessageAttachmentToolFileSearchTool) {
 	apijson.UnmarshalRoot(json.RawMessage(u.JSON.raw), &v)
 	return
 }
@@ -954,7 +954,7 @@ func (r *MessageAttachmentToolUnion) UnmarshalJSON(data []byte) error {
 	return apijson.UnmarshalRoot(data, r)
 }
 
-type MessageAttachmentToolAssistantToolsFileSearchTypeOnly struct {
+type MessageAttachmentToolFileSearchTool struct {
 	// The type of tool being defined: `file_search`
 	Type constant.FileSearch `json:"type,required"`
 	// Metadata for the response, check the presence of optional fields with the
@@ -967,8 +967,8 @@ type MessageAttachmentToolAssistantToolsFileSearchTypeOnly struct {
 }
 
 // Returns the unmodified JSON received from the API
-func (r MessageAttachmentToolAssistantToolsFileSearchTypeOnly) RawJSON() string { return r.JSON.raw }
-func (r *MessageAttachmentToolAssistantToolsFileSearchTypeOnly) UnmarshalJSON(data []byte) error {
+func (r MessageAttachmentToolFileSearchTool) RawJSON() string { return r.JSON.raw }
+func (r *MessageAttachmentToolFileSearchTool) UnmarshalJSON(data []byte) error {
 	return apijson.UnmarshalRoot(data, r)
 }
 
diff --git a/chatcompletion.go b/chatcompletion.go
index 955fbbd..8dd679d 100644
--- a/chatcompletion.go
+++ b/chatcompletion.go
@@ -2518,8 +2518,8 @@ const (
 //
 // Use [param.IsOmitted] to confirm if a field is set.
 type ChatCompletionNewParamsStopUnion struct {
-	OfString                      param.Opt[string] `json:",omitzero,inline"`
-	OfChatCompletionNewsStopArray []string          `json:",omitzero,inline"`
+	OfString      param.Opt[string] `json:",omitzero,inline"`
+	OfStringArray []string          `json:",omitzero,inline"`
 	paramUnion
 }
 
@@ -2527,14 +2527,14 @@ type ChatCompletionNewParamsStopUnion struct {
 // "null". To check if this field is omitted, use [param.IsOmitted].
 func (u ChatCompletionNewParamsStopUnion) IsPresent() bool { return !param.IsOmitted(u) && !u.IsNull() }
 func (u ChatCompletionNewParamsStopUnion) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[ChatCompletionNewParamsStopUnion](u.OfString, u.OfChatCompletionNewsStopArray)
+	return param.MarshalUnion[ChatCompletionNewParamsStopUnion](u.OfString, u.OfStringArray)
 }
 
 func (u *ChatCompletionNewParamsStopUnion) asAny() any {
 	if !param.IsOmitted(u.OfString) {
 		return &u.OfString.Value
-	} else if !param.IsOmitted(u.OfChatCompletionNewsStopArray) {
-		return &u.OfChatCompletionNewsStopArray
+	} else if !param.IsOmitted(u.OfStringArray) {
+		return &u.OfStringArray
 	}
 	return nil
 }
diff --git a/completion.go b/completion.go
index fb447ee..8482d2d 100644
--- a/completion.go
+++ b/completion.go
@@ -411,8 +411,8 @@ func (u *CompletionNewParamsPromptUnion) asAny() any {
 //
 // Use [param.IsOmitted] to confirm if a field is set.
 type CompletionNewParamsStopUnion struct {
-	OfString                  param.Opt[string] `json:",omitzero,inline"`
-	OfCompletionNewsStopArray []string          `json:",omitzero,inline"`
+	OfString      param.Opt[string] `json:",omitzero,inline"`
+	OfStringArray []string          `json:",omitzero,inline"`
 	paramUnion
 }
 
@@ -420,14 +420,14 @@ type CompletionNewParamsStopUnion struct {
 // "null". To check if this field is omitted, use [param.IsOmitted].
 func (u CompletionNewParamsStopUnion) IsPresent() bool { return !param.IsOmitted(u) && !u.IsNull() }
 func (u CompletionNewParamsStopUnion) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[CompletionNewParamsStopUnion](u.OfString, u.OfCompletionNewsStopArray)
+	return param.MarshalUnion[CompletionNewParamsStopUnion](u.OfString, u.OfStringArray)
 }
 
 func (u *CompletionNewParamsStopUnion) asAny() any {
 	if !param.IsOmitted(u.OfString) {
 		return &u.OfString.Value
-	} else if !param.IsOmitted(u.OfCompletionNewsStopArray) {
-		return &u.OfCompletionNewsStopArray
+	} else if !param.IsOmitted(u.OfStringArray) {
+		return &u.OfStringArray
 	}
 	return nil
 }
diff --git a/image.go b/image.go
index 41e0a2d..db39b8b 100644
--- a/image.go
+++ b/image.go
@@ -309,8 +309,8 @@ func (r ImageEditParams) MarshalMultipart() (data []byte, contentType string, er
 //
 // Use [param.IsOmitted] to confirm if a field is set.
 type ImageEditParamsImageUnion struct {
-	OfFile                 io.Reader   `json:",omitzero,inline"`
-	OfImageEditsImageArray []io.Reader `json:",omitzero,inline"`
+	OfFile        io.Reader   `json:",omitzero,inline"`
+	OfBinaryArray []io.Reader `json:",omitzero,inline"`
 	paramUnion
 }
 
@@ -318,14 +318,14 @@ type ImageEditParamsImageUnion struct {
 // "null". To check if this field is omitted, use [param.IsOmitted].
 func (u ImageEditParamsImageUnion) IsPresent() bool { return !param.IsOmitted(u) && !u.IsNull() }
 func (u ImageEditParamsImageUnion) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[ImageEditParamsImageUnion](u.OfFile, u.OfImageEditsImageArray)
+	return param.MarshalUnion[ImageEditParamsImageUnion](u.OfFile, u.OfBinaryArray)
 }
 
 func (u *ImageEditParamsImageUnion) asAny() any {
 	if !param.IsOmitted(u.OfFile) {
 		return &u.OfFile
-	} else if !param.IsOmitted(u.OfImageEditsImageArray) {
-		return &u.OfImageEditsImageArray
+	} else if !param.IsOmitted(u.OfBinaryArray) {
+		return &u.OfBinaryArray
 	}
 	return nil
 }
diff --git a/moderation.go b/moderation.go
index 54ff7b8..2837e38 100644
--- a/moderation.go
+++ b/moderation.go
@@ -481,7 +481,7 @@ func (r ModerationNewParams) MarshalJSON() (data []byte, err error) {
 // Use [param.IsOmitted] to confirm if a field is set.
 type ModerationNewParamsInputUnion struct {
 	OfString                    param.Opt[string]                     `json:",omitzero,inline"`
-	OfModerationNewsInputArray  []string                              `json:",omitzero,inline"`
+	OfStringArray               []string                              `json:",omitzero,inline"`
 	OfModerationMultiModalArray []ModerationMultiModalInputUnionParam `json:",omitzero,inline"`
 	paramUnion
 }
@@ -490,14 +490,14 @@ type ModerationNewParamsInputUnion struct {
 // "null". To check if this field is omitted, use [param.IsOmitted].
 func (u ModerationNewParamsInputUnion) IsPresent() bool { return !param.IsOmitted(u) && !u.IsNull() }
 func (u ModerationNewParamsInputUnion) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[ModerationNewParamsInputUnion](u.OfString, u.OfModerationNewsInputArray, u.OfModerationMultiModalArray)
+	return param.MarshalUnion[ModerationNewParamsInputUnion](u.OfString, u.OfStringArray, u.OfModerationMultiModalArray)
 }
 
 func (u *ModerationNewParamsInputUnion) asAny() any {
 	if !param.IsOmitted(u.OfString) {
 		return &u.OfString.Value
-	} else if !param.IsOmitted(u.OfModerationNewsInputArray) {
-		return &u.OfModerationNewsInputArray
+	} else if !param.IsOmitted(u.OfStringArray) {
+		return &u.OfStringArray
 	} else if !param.IsOmitted(u.OfModerationMultiModalArray) {
 		return &u.OfModerationMultiModalArray
 	}
diff --git a/vectorstore.go b/vectorstore.go
index ede9651..7ec13f0 100644
--- a/vectorstore.go
+++ b/vectorstore.go
@@ -832,8 +832,8 @@ func (r VectorStoreSearchParams) MarshalJSON() (data []byte, err error) {
 //
 // Use [param.IsOmitted] to confirm if a field is set.
 type VectorStoreSearchParamsQueryUnion struct {
-	OfString                       param.Opt[string] `json:",omitzero,inline"`
-	OfVectorStoreSearchsQueryArray []string          `json:",omitzero,inline"`
+	OfString      param.Opt[string] `json:",omitzero,inline"`
+	OfStringArray []string          `json:",omitzero,inline"`
 	paramUnion
 }
 
@@ -843,14 +843,14 @@ func (u VectorStoreSearchParamsQueryUnion) IsPresent() bool {
 	return !param.IsOmitted(u) && !u.IsNull()
 }
 func (u VectorStoreSearchParamsQueryUnion) MarshalJSON() ([]byte, error) {
-	return param.MarshalUnion[VectorStoreSearchParamsQueryUnion](u.OfString, u.OfVectorStoreSearchsQueryArray)
+	return param.MarshalUnion[VectorStoreSearchParamsQueryUnion](u.OfString, u.OfStringArray)
 }
 
 func (u *VectorStoreSearchParamsQueryUnion) asAny() any {
 	if !param.IsOmitted(u.OfString) {
 		return &u.OfString.Value
-	} else if !param.IsOmitted(u.OfVectorStoreSearchsQueryArray) {
-		return &u.OfVectorStoreSearchsQueryArray
+	} else if !param.IsOmitted(u.OfStringArray) {
+		return &u.OfStringArray
 	}
 	return nil
 }