Private AI Detector?

Does anyone know a private AI detector similar to Quillbot [https://quillbot.com/ai-content-detector]?

Wondering if there’s an open-source or at least privacy-respecting project attempting to detect ChatGPT or other LLM text.

These AI detectors are kinda useless. They have so many false positives that its not even worth using it. In my extended use and experience with such tools, they do not work.

FYI.

Definitely wouldn’t rely on it but Mozilla has a fun one to play with.