I always check my students google doc timestamps. 1:50 pm zero words and then 1:51 250 words is always the tell they used ai.

Edit: Whoever disliked this comment why???

Perhaps read the text? Literally the first paragraph:

> They show students how to use tools known as humanizers and autotypers, which make it easier than ever to cheat.

and later:

> Autotypers slowly drip words and sentences into documents, making it appear as if papers were typed at a human pace when in fact, they were produced by A.I. They even fabricate typos, deletions and revisions.

This only catches the most naive cheaters.