I really feel that Andy Warhol Foundation for the Visual Arts, Inc. v. Goldsmith[0] is going to have a big effect on this type of thing. They are basically relying on their AI magic to make it transformative. I'm starting to think the era of learning from material other people own without a license / permission is going to end quickly.

0) https://www.scotusblog.com/case-files/cases/andy-warhol-foun...