diff --git a/api.md b/api.md
index 02030dc07..7557ce133 100644
--- a/api.md
+++ b/api.md
@@ -20,6 +20,10 @@ Methods:
 
 # Chat
 
+Types:
+
+- <code><a href="./src/resources/chat/chat.ts">ChatModel</a></code>
+
 ## Completions
 
 Types:
diff --git a/src/index.ts b/src/index.ts
index 91267cfc0..7a776b2c1 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -238,6 +238,7 @@ export namespace OpenAI {
   export import CompletionCreateParamsStreaming = API.CompletionCreateParamsStreaming;
 
   export import Chat = API.Chat;
+  export import ChatModel = API.ChatModel;
   export import ChatCompletion = API.ChatCompletion;
   export import ChatCompletionAssistantMessageParam = API.ChatCompletionAssistantMessageParam;
   export import ChatCompletionChunk = API.ChatCompletionChunk;
diff --git a/src/resources/chat/chat.ts b/src/resources/chat/chat.ts
index 6c7bccb22..fa681ed64 100644
--- a/src/resources/chat/chat.ts
+++ b/src/resources/chat/chat.ts
@@ -1,13 +1,36 @@
 // File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 import { APIResource } from 'openai/resource';
+import * as ChatAPI from 'openai/resources/chat/chat';
 import * as CompletionsAPI from 'openai/resources/chat/completions';
 
 export class Chat extends APIResource {
   completions: CompletionsAPI.Completions = new CompletionsAPI.Completions(this._client);
 }
 
+export type ChatModel =
+  | 'gpt-4-turbo'
+  | 'gpt-4-turbo-2024-04-09'
+  | 'gpt-4-0125-preview'
+  | 'gpt-4-turbo-preview'
+  | 'gpt-4-1106-preview'
+  | 'gpt-4-vision-preview'
+  | 'gpt-4'
+  | 'gpt-4-0314'
+  | 'gpt-4-0613'
+  | 'gpt-4-32k'
+  | 'gpt-4-32k-0314'
+  | 'gpt-4-32k-0613'
+  | 'gpt-3.5-turbo'
+  | 'gpt-3.5-turbo-16k'
+  | 'gpt-3.5-turbo-0301'
+  | 'gpt-3.5-turbo-0613'
+  | 'gpt-3.5-turbo-1106'
+  | 'gpt-3.5-turbo-0125'
+  | 'gpt-3.5-turbo-16k-0613';
+
 export namespace Chat {
+  export import ChatModel = ChatAPI.ChatModel;
   export import Completions = CompletionsAPI.Completions;
   export import ChatCompletion = CompletionsAPI.ChatCompletion;
   export import ChatCompletionAssistantMessageParam = CompletionsAPI.ChatCompletionAssistantMessageParam;
diff --git a/src/resources/chat/completions.ts b/src/resources/chat/completions.ts
index 2288265ea..b9672f52b 100644
--- a/src/resources/chat/completions.ts
+++ b/src/resources/chat/completions.ts
@@ -6,6 +6,7 @@ import { APIResource } from 'openai/resource';
 import * as ChatCompletionsAPI from 'openai/resources/chat/completions';
 import * as CompletionsAPI from 'openai/resources/completions';
 import * as Shared from 'openai/resources/shared';
+import * as ChatAPI from 'openai/resources/chat/chat';
 import { Stream } from 'openai/streaming';
 
 export class Completions extends APIResource {
@@ -665,27 +666,7 @@ export interface ChatCompletionCreateParamsBase {
    * [model endpoint compatibility](https://platform.openai.com/docs/models/model-endpoint-compatibility)
    * table for details on which models work with the Chat API.
    */
-  model:
-    | (string & {})
-    | 'gpt-4-turbo'
-    | 'gpt-4-turbo-2024-04-09'
-    | 'gpt-4-0125-preview'
-    | 'gpt-4-turbo-preview'
-    | 'gpt-4-1106-preview'
-    | 'gpt-4-vision-preview'
-    | 'gpt-4'
-    | 'gpt-4-0314'
-    | 'gpt-4-0613'
-    | 'gpt-4-32k'
-    | 'gpt-4-32k-0314'
-    | 'gpt-4-32k-0613'
-    | 'gpt-3.5-turbo'
-    | 'gpt-3.5-turbo-16k'
-    | 'gpt-3.5-turbo-0301'
-    | 'gpt-3.5-turbo-0613'
-    | 'gpt-3.5-turbo-1106'
-    | 'gpt-3.5-turbo-0125'
-    | 'gpt-3.5-turbo-16k-0613';
+  model: (string & {}) | ChatAPI.ChatModel;
 
   /**
    * Number between -2.0 and 2.0. Positive values penalize new tokens based on their
diff --git a/src/resources/chat/index.ts b/src/resources/chat/index.ts
index 78a7516ed..ef72bbbc9 100644
--- a/src/resources/chat/index.ts
+++ b/src/resources/chat/index.ts
@@ -1,6 +1,5 @@
 // File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
-export { Chat } from './chat';
 export {
   ChatCompletion,
   ChatCompletionAssistantMessageParam,
@@ -30,3 +29,4 @@ export {
   CompletionCreateParamsStreaming,
   Completions,
 } from './completions';
+export { ChatModel, Chat } from './chat';