How does one make AI Art? Isn't that what the AI does? Does he mean typing in a prompt?
I mean, he might have uploaded his own set of reference images?
But man, the fucking pretension to say "I've made AI art" is on par with neppy declaring herself an authority on capoeira after 6 months of classes.
I'll be overly fair on this, I think saying "I've made AI art" implies some level of actual time investment

playing with dall-e mini is one thing, that's a novelty and doesn't produce usable results
everything else is paid like midjourney or takes a little knowledge and a modern video card, and even then it's not just typing one thing once and sitting back with a smug face

it can take dozens or hundreds of tries to get exactly what you're looking for, involving changing the prompt, the order of words, redoing the same prompt with a new seed, going to reddit or discord to look up tips on how to get the output you want, etc
it's like saying "yeah I'm a level designer" and all you've done is play Little Big Planet, it's possible to toss around some random objects and call it a day, or spend dozens of hours crafting a specific vision