diff --git a/_locales/en/messages.json b/_locales/en/messages.json
index 1a6fe7b7..26e937bf 100644
--- a/_locales/en/messages.json
+++ b/_locales/en/messages.json
@@ -129,6 +129,16 @@
     "description": ""
   },
 
+  "prefs_OptionText_chatpgt_use_gpt4": {
+    "message": "Use ChatGPT-4",
+    "description": ""
+  },
+
+  "prefs_OptionText_chatpgt_use_gpt4_info": {
+    "message": "After changing this option, you have to choose the right model the first time you use it.",
+    "description": ""
+  },
+
   "prefsInfoTitle": {
     "message": "Important Information",
     "description": ""
diff --git a/_locales/it/messages.json b/_locales/it/messages.json
index 5adf7250..30dfb118 100644
--- a/_locales/it/messages.json
+++ b/_locales/it/messages.json
@@ -129,6 +129,16 @@
     "description": ""
   },
 
+  "prefs_OptionText_chatpgt_use_gpt4": {
+    "message": "Usa il modello ChatGPT-4",
+    "description": ""
+  },
+
+  "prefs_OptionText_chatpgt_use_gpt4_info": {
+    "message": "Dopo aver modificato questa opzione, devi scegliere il modello corretto la prima volta che lo usi.",
+    "description": ""
+  },
+
   "prefsInfoTitle": {
     "message": "Informazioni Importanti",
     "description": ""
diff --git a/options/mzta-options-default.js b/options/mzta-options-default.js
index 66c41624..968170b8 100644
--- a/options/mzta-options-default.js
+++ b/options/mzta-options-default.js
@@ -19,4 +19,5 @@
 export const prefs_default = {
     chatgpt_win_height: 800,
     chatgpt_win_width: 700,
+    chatpgt_use_gpt4: false,
 }
\ No newline at end of file
diff --git a/options/mzta-options.html b/options/mzta-options.html
index ef1803b8..1d8058e1 100644
--- a/options/mzta-options.html
+++ b/options/mzta-options.html
@@ -58,6 +58,17 @@
           </label>
         </td>
       </tr>
+      <tr>
+        <td><label>
+          <span>__MSG_prefs_OptionText_chatpgt_use_gpt4__</span>
+        </label></td>
+        <td>
+          <label>
+            <input type="checkbox" id="chatpgt_use_gpt4" name="chatpgt_use_gpt4" class="option-input" />
+            &nbsp;<span>__MSG_prefs_OptionText_chatpgt_use_gpt4_info__</span>
+          </label>
+        </td>
+      </tr>
     </table>
     <div id="miczDescription">
       <h1>__MSG_prefsInfoTitle__</h1>