diff --git a/_locales/en/messages.json b/_locales/en/messages.json
index 5e4d00c6..2f3f8292 100644
--- a/_locales/en/messages.json
+++ b/_locales/en/messages.json
@@ -666,5 +666,9 @@
   "SendingPrompt": {
     "message": "Sending prompt...",
     "description": ""
+  },
+  "AllowedValues": {
+    "message": "Allowed values",
+    "description": ""
   }
 }
\ No newline at end of file
diff --git a/options/mzta-options.html b/options/mzta-options.html
index 32f6a123..f12dca3f 100644
--- a/options/mzta-options.html
+++ b/options/mzta-options.html
@@ -113,6 +113,7 @@
       <tr class="conntype_chatgpt_web">
         <td><label>
           <span>__MSG_prefs_OptionText_chatgpt_web_model__</span>
+          <br><table><tr><td><i style="font-size:smaller;"><nobr>__MSG_AllowedValues__:</nobr></i></td><td><i style="font-size:smaller;"> &nbsp; <nobr>gpt-4o</nobr> &nbsp; <nobr>gpt-4o-mini</nobr> &nbsp; <nobr>gpt-4</nobr> &nbsp; <nobr>o1-mini</nobr> &nbsp; <nobr>o1-preview</nobr></i></td></tr></table>
         </label></td>
         <td>
           <label>