Copyleaks vs GPTZero vs Originality: triple detector comparison

Has anyone else noticed the changes to Claude recently? I’ve been tracking the accuracy and here’s what I found.

After going through all of this I realized that the conventional wisdom is mostly wrong. Not completely wrong but definitely misleading in some important ways. I’ll break it down step by step so you can see what I mean.

I know a lot of people have strong opinions on this but I think the data speaks for itself. I tried to be as objective as possible and test everything under the same conditions. Your mileage may vary of course but these numbers are hard to argue with.

TLDR at the bottom but I really recommend reading the whole thing. Happy to discuss in the comments.