https://www.elephantartgallery.com/
Or a monkey, or some other animal?
Sure, you can call it art if you want to, and someone would be happy to sell it to you. But is it really art?
Is there a reason why the answer to the question of an AI creating art is different from the answer to the question of an elephant creating art?
I can't think of one. And the question of animals creating art seems to have an answer. Although people will pay for it, I haven't seen the art world take it seriously. I live in NYC and go to art galleries all the time. Everything is created by humans. Many artists leverage technology in interesting ways to create something, but there is always a human being behind it.
I do think there is a path forward here though: If the art world considers the program itself as a piece of art, then that could be the artwork. I mean, if [Lawrence Weiner][1] can be considered an artist, then why can't Leon Gatys and his colleagues be artists? Contemporary Art is often [conceptual][2], so the concept communicated is more important than the physical form.
[1]: https://en.wikipedia.org/wiki/Lawrence_Weiner [2]: https://en.wikipedia.org/wiki/Conceptual_art