AI is trained on the body of work of others. i would not want to use anything generated by AI in a commercial work or website without understanding who the copyright holders are of the material the AI was trained on.
Not all AI. AlphaGo for example became superhumanly good at go by playing itself. The only information it got about go from humans is how to tell when a game is over and which player won.
You could also argue that every human is trained off the work of others, both consciously and unconsciously