diff --git a/packages/shared-chat/src/types/chat-options.ts b/packages/shared-chat/src/types/chat-options.ts
deleted file mode 100644
index 3952cee4..00000000
--- a/packages/shared-chat/src/types/chat-options.ts
+++ /dev/null
@@ -1,10 +0,0 @@
-import type { CommonRequestOptions } from '@xsai/shared'
-
-import type { Message } from './message'
-import type { ToolChoice } from './tool-choice'
-
-export interface ChatOptions extends CommonRequestOptions {
-  [key: string]: unknown
-  messages: Message[]
-  toolChoice?: ToolChoice
-}
diff --git a/packages/shared-chat/src/types/index.ts b/packages/shared-chat/src/types/index.ts
index ba56499d..ba8567a3 100644
--- a/packages/shared-chat/src/types/index.ts
+++ b/packages/shared-chat/src/types/index.ts
@@ -1,4 +1,3 @@
-export type * from './chat-options'
 export type * from './finish-reason'
 export type * from './message'
 export type * from './message-part'
diff --git a/packages/shared-chat/src/utils/chat.ts b/packages/shared-chat/src/utils/chat.ts
index 43e331a2..54902e93 100644
--- a/packages/shared-chat/src/utils/chat.ts
+++ b/packages/shared-chat/src/utils/chat.ts
@@ -1,6 +1,14 @@
+import type { CommonRequestOptions } from '@xsai/shared'
+
 import { requestBody, requestHeaders, requestURL, responseCatch } from '@xsai/shared'
 
-import type { ChatOptions, Tool } from '../types'
+import type { Message, Tool, ToolChoice } from '../types'
+
+export interface ChatOptions extends CommonRequestOptions {
+  [key: string]: unknown
+  messages: Message[]
+  toolChoice?: ToolChoice
+}
 
 export const chat = async <T extends ChatOptions>(options: T) =>
   (options.fetch ?? globalThis.fetch)(requestURL('chat/completions', options.baseURL), {
diff --git a/packages/shared-chat/src/utils/index.ts b/packages/shared-chat/src/utils/index.ts
index 550d1cb7..5b4f8a8f 100644
--- a/packages/shared-chat/src/utils/index.ts
+++ b/packages/shared-chat/src/utils/index.ts
@@ -1 +1 @@
-export { chat } from './chat'
+export { chat, type ChatOptions } from './chat'