I did something similar the other day - told it about piglatin and I wanted it to create a comparable language that was based on English and restructured words. It came back with a language it called "flip-flop" that swapped the first and last letter of each word. Blew me away, but I have to remind myself that it's likely something it just encountered in training data and isn't actually capable of creativity.
I'm curious why you felt that need to do so. (not snark! Genuine question.)
As it stands I'd pay about $100 a month for it. It's very good and largely accurate when it comes to established science. I'm studying for the MCAT and a good tutor would cost me around $60-100/hour.
ChatGPT has been excellent for learning - I explain a concept to it and tell it to correct me if I'm wrong, haven't seen any mistakes from it in my testing (around topics I know really well). When I'm having trouble understanding a concept in my studies, I can ask it questions and it tends to give really good answers. And of course, I try to verify that it isn't teaching me something that's wrong.
Hell, I even had a heated argument with it around how SSRIs affect 5-HT2a receptors and it pushed back against some of my assumptions in a way that made me question my understanding. No one in my personal life has the level of expertise to discuss these topics, I would need to talk to a researcher or professor, so having an (even imperfect) stand-in has been amazing.
I've been making up toxicology case studies and posing them to ChatGPT. It correctly figured out ciguatera in one (a rare disease most healthcare workers wouldn't be familiar with). I had to repeatedly add more details to another story to lead it to amnesic shellfish disease, but it did reasonably well once I gave it enough detailed information.