diff --git a/service/src/chatgpt/index.ts b/service/src/chatgpt/index.ts
index b3cb1e0..f486f88 100644
--- a/service/src/chatgpt/index.ts
+++ b/service/src/chatgpt/index.ts
@@ -31,11 +31,14 @@ let api: ChatGPTAPI | ChatGPTUnofficialProxyAPI
   // More Info: https://github.com/transitive-bullshit/chatgpt-api
 
   if (process.env.OPENAI_API_KEY) {
+    const OPENAI_API_MODEL = process.env.OPENAI_API_MODEL
+    const model = (typeof OPENAI_API_MODEL === 'string' && OPENAI_API_MODEL.length > 0)
+      ? OPENAI_API_MODEL
+      : 'gpt-3.5-turbo'
+
     const options: ChatGPTAPIOptions = {
       apiKey: process.env.OPENAI_API_KEY,
-      completionParams: {
-        model: process.env.OPENAI_API_MODEL ?? 'gpt-3.5-turbo',
-      },
+      completionParams: { model },
       debug: false,
     }
 
@@ -108,7 +111,6 @@ async function chatReplyProcess(
   }
   catch (error: any) {
     const code = error.statusCode
-    global.console.log(error)
     if (Reflect.has(ErrorCodeMessage, code))
       return sendResponse({ type: 'Fail', message: ErrorCodeMessage[code] })
     return sendResponse({ type: 'Fail', message: error.message ?? 'Please check the back-end console' })