diff --git a/legacy/src/chatgpt-api-browser.ts b/legacy/src/chatgpt-api-browser.ts
index df0bd458..55807c30 100644
--- a/legacy/src/chatgpt-api-browser.ts
+++ b/legacy/src/chatgpt-api-browser.ts
@@ -30,6 +30,7 @@ export class ChatGPTAPIBrowser extends AChatGPTAPI {
   protected _email: string
   protected _password: string
 
+  protected _model: string
   protected _isProAccount: boolean
 
   protected _executablePath: string
@@ -49,6 +50,7 @@ export class ChatGPTAPIBrowser extends AChatGPTAPI {
   constructor(opts: {
     email: string
     password: string
+    model: string
 
     /** @defaultValue `false` **/
     isProAccount?: boolean
@@ -88,6 +90,7 @@ export class ChatGPTAPIBrowser extends AChatGPTAPI {
     const {
       email,
       password,
+      model,
       isProAccount = false,
       markdown = true,
       debug = false,
@@ -103,6 +106,7 @@ export class ChatGPTAPIBrowser extends AChatGPTAPI {
 
     this._email = email
     this._password = password
+    this._model = model
     this._isProAccount = isProAccount
     this._markdown = !!markdown
     this._debug = !!debug
@@ -464,9 +468,11 @@ export class ChatGPTAPIBrowser extends AChatGPTAPI {
           }
         }
       ],
-      model: this._isProAccount
+      model: this._model
+        ? this._model
+        : this._isProAccount
         ? 'text-davinci-002-render-paid'
-        : 'text-davinci-002-render',
+        : 'text-davinci-002-render-sha',
       parent_message_id: parentMessageId
     }
 
diff --git a/legacy/src/chatgpt-api.ts b/legacy/src/chatgpt-api.ts
index 40179de2..2c7aad78 100644
--- a/legacy/src/chatgpt-api.ts
+++ b/legacy/src/chatgpt-api.ts
@@ -212,7 +212,7 @@ export class ChatGPTAPI extends AChatGPTAPI {
           }
         }
       ],
-      model: 'text-davinci-002-render',
+      model: 'text-davinci-002-render-sha',
       parent_message_id: parentMessageId
     }