If you haven’t already, you can sign up for a free account with ChatGPT 3.5 (I think that’s still the version of the free one). You can sign up just by clicking “sign in with Google”. It’s not only fun to play with, it can be a genuinely useful resource, provided of course that you verify its responses for anything important.
GPT 4.x is better (I think 4.5 is just going into production) but the free one is tremendously powerful. Here, for instance, is an example where someone critiqued the intrinsic capabilities of an LLM so I asked ChatGPT to analyze the critique. I must say, its analysis was impressive!