diff --git a/.stats.yml b/.stats.yml
index 9a2cd3b2..a411158d 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,2 +1,2 @@
 configured_endpoints: 68
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/openai-6204952a29973265b9c0d66fc67ffaf53c6a90ae4d75cdacf9d147676f5274c9.yml
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/openai-fc5dbc19505b0035f9e7f88868619f4fb519b048bde011f6154f3132d4be71fb.yml
diff --git a/chatcompletion.go b/chatcompletion.go
index 8d9f6c49..5c276679 100644
--- a/chatcompletion.go
+++ b/chatcompletion.go
@@ -614,6 +614,7 @@ func (r chatCompletionChunkChoicesDeltaFunctionCallJSON) RawJSON() string {
 type ChatCompletionChunkChoicesDeltaRole string
 
 const (
+	ChatCompletionChunkChoicesDeltaRoleDeveloper ChatCompletionChunkChoicesDeltaRole = "developer"
 	ChatCompletionChunkChoicesDeltaRoleSystem    ChatCompletionChunkChoicesDeltaRole = "system"
 	ChatCompletionChunkChoicesDeltaRoleUser      ChatCompletionChunkChoicesDeltaRole = "user"
 	ChatCompletionChunkChoicesDeltaRoleAssistant ChatCompletionChunkChoicesDeltaRole = "assistant"
@@ -622,7 +623,7 @@ const (
 
 func (r ChatCompletionChunkChoicesDeltaRole) IsKnown() bool {
 	switch r {
-	case ChatCompletionChunkChoicesDeltaRoleSystem, ChatCompletionChunkChoicesDeltaRoleUser, ChatCompletionChunkChoicesDeltaRoleAssistant, ChatCompletionChunkChoicesDeltaRoleTool:
+	case ChatCompletionChunkChoicesDeltaRoleDeveloper, ChatCompletionChunkChoicesDeltaRoleSystem, ChatCompletionChunkChoicesDeltaRoleUser, ChatCompletionChunkChoicesDeltaRoleAssistant, ChatCompletionChunkChoicesDeltaRoleTool:
 		return true
 	}
 	return false