Issue with GPT-4o API access after previously using it

Hello OpenAI team,

I need help regarding my GPT-4o API access.

I have an active OpenAI API Platform account with billing enabled ($120 monthly limit).
I successfully used the API on May 5th, 2025, with 42 requests and 1753 tokens consumed (most likely with GPT-4o).
Recently, when I attempt to call the gpt-4o model via the API, my requests remain stuck indefinitely without any error message or response.
The same code works perfectly with gpt-3.5-turbo.
My API key is valid, my billing is active, no VPN or firewall issue on my side.

It seems like GPT-4o access may have been disabled on my API account after the recent model migration.

Could you please check my account and confirm whether GPT-4o API access can be re-enabled?

Thank you very much for your assistance.

Best regards,
Louis Gubbiotti

Hi, welcome to this developer community.

OpenAI staff probably won’t answer your request here, this is mainly a forum for fellow developers using the API services.

For that you need to reach support by clicking in the “support” link on the top menu, then look for a chat icon in the bottom right.

You can also check your settings to see if your API keys are enabled for all models in case you accidentally restricted them.

Sometimes creating a new project and a new key may solve your problem. If not, then you may need to contact the support.

Thank you for your reply, I will try all you recommendation as soon as possible