Only novel art is interesting. AI can't really do novel. It's a prediction algorithm; it imitates. You can add noise, but that mostly just makes it worse. It can be used to facilitate original stuff though.

But so many people want to make art, and it's so cheap to distribute it, that art is already commoditized. If people prefer human-created art, satisfying that preference is practically free.

AI can be novel, there is nothing in the transformer architecture which prohibits novelty, it's just that structurally it much prefers pattern-matching.

But the idea of novelty is a misnomer I think. Any random number generator can arbitrarily create a "novel" output that a human has never seen before. The issue is whether something is both novel and useful, which is hard for even humans to do consistently.

There are lots of things that are novel to you without necessarily being novel to the universe.