Problem with AI professional log in

Hi everyone,

I hope anyone can help me here. I'm trying to use the OpenAI model (I have a premium account), but it just won't connect. I sign up to my Open AI account, create the API key choose the name and ChatGPT 4 as model, paste the key, and when I test the connection I just get this message:

Model not found. The model Chtgpt-4 does not exist or you do not have access to it.

If I try with the 3.5 it says insufficient quota. Have any of you had this issue? Any help will be most appreciated.

Thanks in advance.

Gareth

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