Update index.js

index.js

@@ -71,7 +71,7 @@ app.post('/api/chatgpt', async (req, res) => {
         if (!status) return res.json({ success: false, message: 'Required an prompt text!' })
 
         if(status !== apikey) return res.json({ success: false, message: 'Invalid status!' })
-        if(model == "gpt-3") {
+        if(model == "gpt-4") {
           const response = await chatgpt_4(prompt)
           res.json({
             status: "ok",