How to make sure I am calling GPT4 API vs 3.5

[twilit valley]

Hello,

I just got access to GPT4 api. How can I make sure I am calling the correct model?

[spare crag]

Use the gpt-4 model in your request

https://platform.openai.com/docs/api-reference/chat/create#chat/create-model

Also: https://platform.openai.com/docs/api-reference/making-requests