diff --git a/service/.env.example b/service/.env.example
index d6f2ba5929..1eb1dbf7b1 100644
--- a/service/.env.example
+++ b/service/.env.example
@@ -1,6 +1,9 @@
 # OpenAI API Key - https://platform.openai.com/overview
 OPENAI_API_KEY=
 
+# OpenAI API Key Backup
+OPENAI_API_KEY_BACKUP=
+
 # change this to an `accessToken` extracted from the ChatGPT site's `https://chat.openai.com/api/auth/session` response
 OPENAI_ACCESS_TOKEN=
 
diff --git a/service/src/chatgpt/index.ts b/service/src/chatgpt/index.ts
index 9f3b31068a..080f206ef7 100644
--- a/service/src/chatgpt/index.ts
+++ b/service/src/chatgpt/index.ts
@@ -1,3 +1,5 @@
+// noinspection JSIgnoredPromiseFromCall
+
 import * as dotenv from 'dotenv'
 import 'isomorphic-fetch'
 import type { ChatGPTAPIOptions, ChatMessage, SendMessageOptions } from 'chatgpt'
@@ -28,22 +30,23 @@ const timeoutMs: number = !isNaN(+process.env.TIMEOUT_MS) ? +process.env.TIMEOUT
 const disableDebug: boolean = process.env.OPENAI_API_DISABLE_DEBUG === 'true'
 
 let apiModel: ApiModel
+let apiKey = process.env.OPENAI_API_KEY
 
-if (!isNotEmptyString(process.env.OPENAI_API_KEY) && !isNotEmptyString(process.env.OPENAI_ACCESS_TOKEN))
+if (!isNotEmptyString(apiKey) && !isNotEmptyString(process.env.OPENAI_ACCESS_TOKEN))
   throw new Error('Missing OPENAI_API_KEY or OPENAI_ACCESS_TOKEN environment variable')
 
 let api: ChatGPTAPI | ChatGPTUnofficialProxyAPI
 
-(async () => {
+async function initApi() {
   // More Info: https://github.com/transitive-bullshit/chatgpt-api
 
-  if (isNotEmptyString(process.env.OPENAI_API_KEY)) {
+  if (isNotEmptyString(apiKey)) {
     const OPENAI_API_BASE_URL = process.env.OPENAI_API_BASE_URL
     const OPENAI_API_MODEL = process.env.OPENAI_API_MODEL
     const model = isNotEmptyString(OPENAI_API_MODEL) ? OPENAI_API_MODEL : 'gpt-3.5-turbo'
 
     const options: ChatGPTAPIOptions = {
-      apiKey: process.env.OPENAI_API_KEY,
+      apiKey,
       completionParams: { model },
       debug: !disableDebug,
     }
@@ -86,10 +89,12 @@ let api: ChatGPTAPI | ChatGPTUnofficialProxyAPI
     api = new ChatGPTUnofficialProxyAPI({ ...options })
     apiModel = 'ChatGPTUnofficialProxyAPI'
   }
-})()
+}
+
+initApi()
 
 async function chatReplyProcess(options: RequestOptions) {
-  const { lastContext, process, systemMessage } = options
+  const { lastContext, onProgressProcess, systemMessage } = options
   let message = options.message
   try {
     if (message.startsWith('/') && message.slice(message.length - 5) === '11514') {
@@ -119,7 +124,7 @@ async function chatReplyProcess(options: RequestOptions) {
     const response = await api.sendMessage(message, {
       ...options,
       onProgress: (partialResponse) => {
-        process?.(partialResponse)
+        onProgressProcess?.(partialResponse)
       },
     })
 
@@ -127,6 +132,12 @@ async function chatReplyProcess(options: RequestOptions) {
   }
   catch (error: any) {
     const code = error.statusCode
+    if (apiModel === 'ChatGPTAPI' && code === 401 && apiKey !== process.env.OPENAI_API_KEY_BACKUP) {
+      apiKey = process.env.OPENAI_API_KEY_BACKUP
+      await initApi()
+      return chatReplyProcess({ ...options, lastContext: null })
+    }
+
     global.console.log(error)
     if (Reflect.has(ErrorCodeMessage, code))
       return sendResponse({ type: 'Fail', message: ErrorCodeMessage[code] })
@@ -135,7 +146,7 @@ async function chatReplyProcess(options: RequestOptions) {
 }
 
 async function fetchBalance() {
-  const OPENAI_API_KEY = process.env.OPENAI_API_KEY
+  const OPENAI_API_KEY = apiKey
   const OPENAI_API_BASE_URL = process.env.OPENAI_API_BASE_URL
 
   if (!isNotEmptyString(OPENAI_API_KEY))
diff --git a/service/src/chatgpt/types.ts b/service/src/chatgpt/types.ts
index 1e65f4ca39..1e4b05d295 100644
--- a/service/src/chatgpt/types.ts
+++ b/service/src/chatgpt/types.ts
@@ -3,6 +3,6 @@ import type { ChatMessage } from 'chatgpt'
 export interface RequestOptions {
   message: string
   lastContext?: { conversationId?: string; parentMessageId?: string }
-  process?: (chat: ChatMessage) => void
+  onProgressProcess?: (chat: ChatMessage) => void
   systemMessage?: string
 }
diff --git a/service/src/index.ts b/service/src/index.ts
index 28041d1c70..9a4c50b750 100644
--- a/service/src/index.ts
+++ b/service/src/index.ts
@@ -28,7 +28,7 @@ router.post('/chat-process', [auth, limiter], async (req, res) => {
     await chatReplyProcess({
       message: prompt,
       lastContext: options,
-      process: (chat: ChatMessage) => {
+      onProgressProcess: (chat: ChatMessage) => {
         res.write(firstChunk ? JSON.stringify(chat) : `\n${JSON.stringify(chat)}`)
         firstChunk = false
       },