Who gets to decide what counts as 'made by a human' these days?

Saw that an author got dropped from a prize over AI allegations, and it's got me thinking about my own field — medical illustration. Nobody's accusing me of anything yet, but the line between 'assisted by tools' and 'made by a machine' feels like it's getting thinner every week. For the makers here: where do you personally draw that line, or do you not bother?