I zap proportionally to the effort put in by a human, as best I can perceive it.

A cool AI prompt that made a pretty? Double or triple digit zap.

Something that took several hours of work, triple or quadruple digit zap.

A painting hand painted by a true artist.... many digits of zappage.

I feel like appreciating a computer making a pretty when a human prompts it is ok, but I definitely try to reward PoW when I can.