[fredliu]

hmm... doesn't seem to be the case, when I provided my gpt-3 turbo key the error message indicates the gpt-4 model doesn't exist.

[capableweb]

Change this https://github.com/enricoros/nextjs-chatgpt-app/blob/466a366... to say "gpt-3.5-tubo" and it should work for you

[trendoid]

I updated the model in that file, deployed again using Vercel but still same error.