I tested this on some text that I strongly suspect was plagiarized with a GPT-like bot. It thinks both texts are human: my original and the suspected AI-generated one. Judge for yourself: <a href="https://richardsprague.com/posts/2022/2022-11-30-plagarized-dsci-post.html#plagarism-detector" rel="nofollow">https://richardsprague.com/posts/2022/2022-11-30-plagarized-...</a>