AFAIK, Gemini also uses text watermarking but I don’t think they have any open tool for identifying those watermarks

Previously, there was a bug in the API that didn’t hide comments from blocked users https://codeberg.org/rimu/pyfedi/issues/1608

This is a perfect example of why the EU AI Act is so important. Researchers have been warning about these kinds of dangers for decades. Still using AI despite its well known flaws/biases is just downright evil