In general, consuming content cannot be a violation of copyright or a license agreement; What is controlled, however, is stuff like reproduction. So if you do see a Getty Images picture, redraw it almost verbatim (even without tracing), you've effectively reproduced it, but the act of viewing it isn't illegal. In this vein, "exhibiting the same level of creativity as a human" is important - if it is, you can argue that the AI is just creating new stuff and the training set was simply "viewed", so anything it creates isn't necessarily infringement of any one of Getty's photos.