It uses one of Mozilla's models: https://huggingface.co/fakespot-ai/roberta-base-ai-text-detection-v1 https://huggingface.co/fakespot-ai/roberta-base-ai-text-de

It uses one of Mozilla's models: https://huggingface.co/fakespot-ai/roberta-base-ai-text-detection-v1 https://huggingface.co/fakespot-ai/roberta-base-ai-text-dete... It has a pretty high false positive rate though, but it reliably highlights AI generated spam websites and saves me from having to read them.