FileMaker using API but only gpt-3 answer

I have a working FileMaker file that does send prompts and receives answers from OpenAI URL = “https://api.openai.com/v1/chat/completions”.

The problem is that I can not get it to use gtp-4 or any other than

Provide your code if you want help.

I have now been able to access gpt-4 with FileMaker.
Maybe it was because OpenAI restricts access to LLM models depending on server load that I only get gpt-3 access.

Providing code is not possible with FileMaker scripts as the code is generated with the Script editor, and you can not see all settings, even if I take a screenshot.