feat(api): add new, expressive voices for Realtime and Audio in Chat Completions (#1157)

https://platform.openai.com/docs/changelog

Author: stainless-app[bot]

.stats.yml

@@ -1,2 +1,2 @@
 configured_endpoints: 68
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/openai-b60d5559d5150ecd3b49136064e5e251d832899770ff385b711378389afba370.yml
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/openai-7b0a5d715d94f75ac7795bd4d2175a0e3243af9b935a86c273f371e45583140f.yml

src/resources/chat/completions.ts

@@ -250,10 +250,10 @@ export interface ChatCompletionAudioParam {
   format: 'wav' | 'mp3' | 'flac' | 'opus' | 'pcm16';
 
   /**
-   * Specifies the voice type. Supported voices are `alloy`, `echo`, `fable`, `onyx`,
-   * `nova`, and `shimmer`.
+   * The voice the model uses to respond. Supported voices are `alloy`, `ash`,
+   * `ballad`, `coral`, `echo`, `sage`, `shimmer`, and `verse`.
    */
-  voice: 'alloy' | 'echo' | 'fable' | 'onyx' | 'nova' | 'shimmer';
+  voice: 'alloy' | 'ash' | 'ballad' | 'coral' | 'echo' | 'sage' | 'shimmer' | 'verse';
 }
 
 /**
@@ -308,7 +308,7 @@ export interface ChatCompletionChunk {
    * contains a null value except for the last chunk which contains the token usage
    * statistics for the entire request.
    */
-  usage?: CompletionsAPI.CompletionUsage;
+  usage?: CompletionsAPI.CompletionUsage | null;
 }
 
 export namespace ChatCompletionChunk {