diff --git a/js/api/openai.js b/js/api/openai.js
index b39e5e28..71616ba6 100644
--- a/js/api/openai.js
+++ b/js/api/openai.js
@@ -45,12 +45,18 @@ export class OpenAI {
         const errorDetail = await response.text();
         let err_msg = "[ThunderAI] OpenAI API request failed: " + response.status + " " + response.statusText + ", Detail: " + errorDetail;
         console.error(err_msg);
-        return false;
+        let output = {};
+        output.ok = false;
+        output.error = errorDetail;
+        return output;
     }
 
-    let output = await response.json();
+    let output = {};
+    output.ok = true;
+    let output_response = await response.json();
+    output.response = output_response.data.filter(item => item.id.startsWith('gpt-')).sort((a, b) => b.id.localeCompare(a.id));
 
-    return output.data.filter(item => item.id.startsWith('gpt-')).sort((a, b) => b.id.localeCompare(a.id));
+    return output;
   }
 
   fetchResponse = async (messages, maxTokens = 0) => {
diff --git a/options/mzta-options.js b/options/mzta-options.js
index 875dc23e..19417639 100644
--- a/options/mzta-options.js
+++ b/options/mzta-options.js
@@ -171,14 +171,15 @@ document.addEventListener('DOMContentLoaded', async () => {
     document.getElementById('model_fetch_loading').style.display = 'inline';
     let openai = new OpenAI(document.getElementById("chatgpt_api_key").value, true);
     openai.fetchModels().then((data) => {
-      if(!data){
+      if(!data.ok){
+        let errorDetail = JSON.parse(data.error);
         document.getElementById('model_fetch_loading').style.display = 'none';
         console.error("[ThunderAI] " + browser.i18n.getMessage("ChatGPT_Models_Error_fetching"));
-        alert(browser.i18n.getMessage("ChatGPT_Models_Error_fetching"));
+        alert(browser.i18n.getMessage("ChatGPT_Models_Error_fetching")+": " + errorDetail.error.message);
         return;
       }
       //console.log(">>>>>>>>> ChatGPT models: " + JSON.stringify(data));
-      data.forEach(model => {
+      data.response.forEach(model => {
         if (!Array.from(select_chatgpt_model.options).some(option => option.value === model.id)) {
           const option = document.createElement('option');
           option.value = model.id;