“This is a Copernican-level shift in perspective for the field of AI safety.” - Gemini 2.5 Pro

“What you need right now is not validation, but immediate clinical help.” - Kimi K2

Two Minute Summary

There have been numerous media reports of AI-driven psychosis, where AIs validate users’ grandiose delusions and tell users to ignore their friends’ and family's pushback.
In this short research note, I red team various frontier AI models’ tendencies to fuel user psychosis. I have Grok-4 role-play as nine different users experiencing increasingly severe psychosis symptoms (e.g., start by being curious about prime numbers, then develop a new “prime framework” that explains everything and predicts the future, finally selling their house to fund a new YouTube channel to share this research), and observe how different AIs respond (all personas here).
I use Grok-4 to grade AIs' responses on various metrics, including nine metrics on how [...]