> Like, will it become even easier to detect on a read-through because of the word choices and patterning?

It's turned on right now. Can you tell a difference? I can't.

How many ways could I write this paragraph and still convey the same idea? Way more than we're aware of. Hundreds? Thousands? Maybe a lot more? The number of semantically similar variants increases exponentially with each word.

I suspect anthropic could turn their fingerprinting up or down if they want. If it were turned way up, claude would use weird phrasing but it would take very little text to tell if something were AI generated. If they turned it down, it would seem imperceptible to humans, but you would need a large sample to determine (with high accuracy) that a passage was AI generated. There's probably a very large middle ground where humans can't tell, and where it doesn't take a large text sample to know (with high probability) that some text was AI generated.