It depends. At the University of Arizona, it’s up to each instructor to create policies for classroom use. So if your instructor doesn’t allow it, it would be cheating, especially if you use ChatGPT to write an academic paper.
However, many instructors do allow it for specific assignments or tasks. Always ask your instructor what their policies are. The best time to talk with your instructor is before you begin your assignment to avoid needing to start over if generative AI isn't allowed.
Even if your instructor does allow it for particular uses, it’s still against the principles of academic integrity to represent a paper entirely written by ChatGPT as your own.