diff --git a/package.json b/package.json
index 57a6d89..c398801 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@kevisual/ai",
-  "version": "0.0.13",
+  "version": "0.0.14",
   "description": "AI Center Services",
   "main": "index.js",
   "basename": "/root/ai-center-services",
diff --git a/src/provider/core/chat.ts b/src/provider/core/chat.ts
index 7072993..c806304 100644
--- a/src/provider/core/chat.ts
+++ b/src/provider/core/chat.ts
@@ -1,4 +1,3 @@
-import { OpenAI } from 'openai';
 import type {
   BaseChatInterface,
   ChatMessageComplete,
@@ -51,12 +50,11 @@ export class BaseChat implements BaseChatInterface, BaseChatUsageInterface {
   total_tokens: number;
   completion_tokens: number;
   responseText: string;
-  utils: AIUtils;
+  utils = AIUtils;
   constructor(options: BaseChatOptions) {
     this.baseURL = options.baseURL;
     this.model = options.model;
     this.apiKey = options.apiKey;
-    this.utils = new AIUtils();
   }
   post(url = '', opts: { headers?: Record<string, string>, data?: any } = {}) {
     let _url = url.startsWith('http') ? url : this.baseURL + url;
diff --git a/src/provider/index.ts b/src/provider/index.ts
index 0c03e4d..b39df7c 100644
--- a/src/provider/index.ts
+++ b/src/provider/index.ts
@@ -3,3 +3,5 @@ export * from './chat.ts';
 export * from './knowledge.ts';
 
 export * from './utils/index.ts';
+
+export { AIUtils } from './core/utils/index.ts';
\ No newline at end of file