Update index.js

index.js

@@ -95,7 +95,7 @@ const sendToJulius = async (tempUserID, message, model) => {
 app.post('/v1/chat/completions', authMiddleware, async (req, res) => {
   try {
     const { messages, model: originalModel, stream } = req.body;
-    const model = modelMapping[originalModel] || "GPT-4o mini";
+    const model = modelMapping[originalModel] || originalModel;
     const tempUserID = await getTempUserID();
     const content = messages[messages.length - 1].content;