Is GPT-4o through ChatGPT secretly using GPT-4o-mini for simple prompts? The "sycophantic behavior" fix might be masking a deeper shift

ChatGPT
4

It is personal.

I am a member like you here.

You can use the method I shared to see which models is being used in your chat
or
you can visit:

help.openai.com

and ask support team. They will tell you.