Calling AI-generated images art is a stretch. Same thing with creative writing. It can make some low-cost illustrations and writing, but it is very far from decent art. Compare those results with their amazing coding or math capabilities.
https://www.astralcodexten.com/p/how-did-you-do-on-the-ai-ar...
Two years old now, and as the cryptographers say, attacks only get better.
Those are either copies or bad. I think the difference in quality and originality is huge, even if they can create plausible looking images in already invented styles.