diff --git a/api.md b/api.md
index e26b57850..7285097f2 100644
--- a/api.md
+++ b/api.md
@@ -20,6 +20,7 @@ Types:
 - <code><a href="./src/resources/chat/completions.ts">ChatCompletionChunk</a></code>
 - <code><a href="./src/resources/chat/completions.ts">ChatCompletionMessage</a></code>
 - <code><a href="./src/resources/chat/completions.ts">ChatCompletionMessageParam</a></code>
+- <code><a href="./src/resources/chat/completions.ts">ChatCompletionRole</a></code>
 - <code><a href="./src/resources/chat/completions.ts">CreateChatCompletionRequestMessage</a></code>
 
 Methods:
diff --git a/src/resources/chat/chat.ts b/src/resources/chat/chat.ts
index 5d10f2f4d..6ef43dd7a 100644
--- a/src/resources/chat/chat.ts
+++ b/src/resources/chat/chat.ts
@@ -14,6 +14,7 @@ export namespace Chat {
   export import ChatCompletionChunk = API.ChatCompletionChunk;
   export import ChatCompletionMessage = API.ChatCompletionMessage;
   export import ChatCompletionMessageParam = API.ChatCompletionMessageParam;
+  export import ChatCompletionRole = API.ChatCompletionRole;
   export import CreateChatCompletionRequestMessage = API.CreateChatCompletionRequestMessage;
   export import ChatCompletionCreateParams = API.ChatCompletionCreateParams;
   export import CompletionCreateParams = API.CompletionCreateParams;
diff --git a/src/resources/chat/completions.ts b/src/resources/chat/completions.ts
index 97ab2e9dd..dfc37a731 100644
--- a/src/resources/chat/completions.ts
+++ b/src/resources/chat/completions.ts
@@ -164,7 +164,7 @@ export namespace ChatCompletionChunk {
       /**
        * The role of the author of this message.
        */
-      role?: 'system' | 'user' | 'assistant' | 'function';
+      role?: ChatCompletionRole;
     }
 
     export namespace Delta {
@@ -202,7 +202,7 @@ export interface ChatCompletionMessage {
   /**
    * The role of the author of this message.
    */
-  role: 'system' | 'user' | 'assistant' | 'function';
+  role: ChatCompletionRole;
 
   /**
    * The name and arguments of a function that should be called, as generated by the
@@ -281,6 +281,11 @@ export namespace ChatCompletionMessageParam {
   }
 }
 
+/**
+ * The role of the author of this message.
+ */
+export type ChatCompletionRole = 'system' | 'user' | 'assistant' | 'function';
+
 /**
  * @deprecated ChatCompletionMessageParam should be used instead
  */
@@ -497,6 +502,7 @@ export namespace Completions {
   export import ChatCompletionChunk = API.ChatCompletionChunk;
   export import ChatCompletionMessage = API.ChatCompletionMessage;
   export import ChatCompletionMessageParam = API.ChatCompletionMessageParam;
+  export import ChatCompletionRole = API.ChatCompletionRole;
   export import CreateChatCompletionRequestMessage = API.CreateChatCompletionRequestMessage;
   export import ChatCompletionCreateParams = API.ChatCompletionCreateParams;
   export import CompletionCreateParams = API.CompletionCreateParams;
diff --git a/src/resources/chat/index.ts b/src/resources/chat/index.ts
index ea9d1d1b9..32dea91fe 100644
--- a/src/resources/chat/index.ts
+++ b/src/resources/chat/index.ts
@@ -6,6 +6,7 @@ export {
   ChatCompletionChunk,
   ChatCompletionMessage,
   ChatCompletionMessageParam,
+  ChatCompletionRole,
   CreateChatCompletionRequestMessage,
   ChatCompletionCreateParams,
   CompletionCreateParams,