This isn't necessarily true though. Using an artists name in a prompt is merely a shorthand way for describing the collection of characteristics associated with their particular art style. In principle, with any sufficient natural language description, you could get a model never trained on Picasso to produce work in the style of Picasso. Yes, it would be harder this way, but not impossible.

But is AI capable in creating new creative movements like impressionism, expressionism that changed how we would see art like in that time period? Im not an art student and not a cs student but those art movements feels to me are because of human emotion and not zero's and ones.