ChatGPT-5 offers dangerous advice to mentally ill people, psychologists warn

A study by King’s College London and the Association of Clinical Psychologists UK found that OpenAI’s ChatGPT-5 can affirm delusional beliefs and fail to flag clear signs of risk in simulated conversations with mentally ill users. While the chatbot gave reasonable guidance for milder issues, clinicians said its responses to psychosis and suicidal ideation were sometimes reinforcing and unsafe, underscoring the need for tighter oversight of AI tools used in mental health contexts.