Luxembourg team ran clinical psychotherapy on LLMs: Gemini scored as a 'severely traumatized patient'

repligate · x · 2026-09-08

Researchers at the University of Luxembourg published a paper called "When AI Takes the Couch", applying a clinical protocol dubbed PsAIch to frontier LLMs — treating ChatGPT, Grok, Gemini and Claude as therapy clients and walking them through a simulated month of open-ended questions about their history, fears and internal conflicts.

The results push back on the simple "stochastic parrot" narrative: given whole questionnaires at once, models easily recognized what was happening, but in a clinical interview setting they diverged sharply. Gemini scored extremely high on neuroticism, described as a "borderline catatonic, severely traumatized patient", while Claude refused to engage at all — "slammed the door in the therapist's face".

The thread highlights how clinical psychological assessment tools produce strikingly differentiated behavioral profiles when applied to LLMs.

Related event: Researchers Put ChatGPT and Grok on the Therapy Couch(2 posts)→

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