[Tepix]

https://arxiv.org/abs/2412.06651 (in German, hopefully machine translation works well)

English article:

https://www.heise.de/en/news/38C3-AI-tools-must-be-evaluated...

If you speak German, here is their talk from 38c3: https://media.ccc.de/v/38c3-chatbots-im-schulunterricht