diff --git a/src/models/qwen.js b/src/models/qwen.js
index c343253..d3d7bec 100644
--- a/src/models/qwen.js
+++ b/src/models/qwen.js
@@ -1,26 +1,21 @@
 // This code uses Dashscope and HTTP to ensure the latest support for the Qwen model.
-// Qwen is also compatible with the OpenAI API format, and the base URL to be configured is: "https://dashscope.aliyuncs.com/compatible-mode/v1".
-
-https://dashscope.aliyuncs.com/compatible-mode/v1
+// Qwen is also compatible with the OpenAI API format;
 
 import { getKey } from '../utils/keys.js';
 
 export class Qwen {
     constructor(modelName, url) {
-        // Initialize model name and API URL
         this.modelName = modelName;
         this.url = url || 'https://dashscope.aliyuncs.com/api/v1/services/aigc/text-generation/generation';
-        this.apiKey = getKey('QWEN_API_KEY'); // Get API key from utility function
+        this.apiKey = getKey('QWEN_API_KEY');
     }
 
     async sendRequest(turns, systemMessage, stopSeq = '***', retryCount = 0) {
-        // Limit retry attempts to avoid infinite recursion
         if (retryCount > 5) {
             console.error('Maximum retry attempts reached.');
             return 'Error: Too many retry attempts.';
         }
 
-        // Build request data
         const data = {
             model: this.modelName || 'qwen-plus',
             input: { messages: [{ role: 'system', content: systemMessage }, ...turns] },
@@ -32,78 +27,65 @@ export class Qwen {
             data.input.messages.push({ role: 'user', content: 'hello' });
         }
 
-        // Validate data format before sending request
         if (!data.model || !data.input || !data.input.messages || !data.parameters) {
             console.error('Invalid request data format:', data);
             throw new Error('Invalid request data format.');
         }
 
         try {
-            // Send request to API
             const response = await this._makeHttpRequest(this.url, data);
             const choice = response?.output?.choices?.[0];
 
-            // Retry request if response is incomplete due to length limit
             if (choice?.finish_reason === 'length' && turns.length > 0) {
                 return this.sendRequest(turns.slice(1), systemMessage, stopSeq, retryCount + 1);
             }
 
-            // Return response content or default message
             return choice?.message?.content || 'No content received.';
         } catch (err) {
-            // Error handling, log error and return error message
             console.error('Error occurred:', err);
             return 'An error occurred, please try again.';
         }
     }
 
     async embed(text) {
-        // Validate embedding input
         if (!text || typeof text !== 'string') {
             console.error('Invalid embedding input: text must be a non-empty string.');
             return 'Invalid embedding input: text must be a non-empty string.';
         }
 
-        // Build embedding request data
         const data = {
             model: 'text-embedding-v2',
             input: { texts: [text] },
             parameters: { text_type: 'query' },
         };
 
-        // Validate data format before sending request
         if (!data.model || !data.input || !data.input.texts || !data.parameters) {
             console.error('Invalid embedding request data format:', data);
             throw new Error('Invalid embedding request data format.');
         }
 
         try {
-            // Send embedding request to API
             const response = await this._makeHttpRequest(this.url, data);
             const embedding = response?.output?.embeddings?.[0]?.embedding;
             return embedding || 'No embedding result received.';
         } catch (err) {
-            // Error handling, log error and return error message
             console.error('Error occurred:', err);
             return 'An error occurred, please try again.';
         }
     }
 
     async _makeHttpRequest(url, data) {
-        // Set request headers, including authorization and content type
         const headers = {
             'Authorization': `Bearer ${this.apiKey}`,
             'Content-Type': 'application/json',
         };
 
-        // Send HTTP POST request to API
         const response = await fetch(url, {
             method: 'POST',
             headers,
             body: JSON.stringify(data),
         });
 
-        // Check response status code, throw error if not successful
         if (!response.ok) {
             const errorText = await response.text();
             console.error(`Request failed, status code ${response.status}: ${response.statusText}`);
@@ -111,7 +93,6 @@ export class Qwen {
             throw new Error(`Request failed, status code ${response.status}: ${response.statusText}`);
         }
 
-        // Parse and return response JSON
         const responseText = await response.text();
         try {
             return JSON.parse(responseText);