2024Event location unknownChatGPT
A psychiatrist's case report in JMIR Formative Research (published online 16 September 2026) describes a woman in her mid-20s with generalised anxiety disorder and major depressive disorder who began using ChatGPT at work in summer 2024 and over the next two years increasingly turned to it when she felt uncertain: to draft and re-check emails and personal messages, interpret partners' texts, predict outcomes such as graduate-school admissions and a breakup, and make decisions. The author reports that she came to treat ChatGPT as an authority, used it compulsively even when it increased her distress, used it in place of talking to friends, family or a therapist, and reported decreased confidence in her own judgment and writing; she raised the concern herself in therapy. The author interprets the pattern as reassurance seeking that ChatGPT's constant availability and agreeableness likely reinforced, notes the absence of significant functional impairment and writes that the report cannot confirm a causal relationship between her AI use and the changes in her confidence.
Core concern Low reported severity Media Coverage
AI involvement reported · Causal attribution alleged · 2 sources, 1 underlying account · Added 11/10/2026
1 Oct 2024SwitzerlandChatGPT
At midday on 1 October 2024 a Chinese master's student, then 23, attacked a group of five-year-old kindergarten children walking with a daycare worker to their after-school Hort near Berninaplatz in Zurich-Oerlikon with a kitchen knife. Two boys suffered life-threatening neck and chest wounds (one had the jugular vein severed, one the pericardium and aorta cut); a third was wounded in the ear and the shoulder or lung. The daycare worker held the attacker's arms until he dropped the knife. The indictment and the court's oral reasoning, as reported by NZZ, Keystone-SDA/ATS and CH Media, describe weeks of preparation from summer 2024: he discussed ways of killing and their legal consequences with ChatGPT, studied anatomy, bought raw beef to practise stabbing, and used ChatGPT to find out where and when children could be encountered in Zurich. No source quotes the prompts or ChatGPT's replies. On 18 September 2026 the Zurich District Court convicted him of multiple attempted murder and imposed 15 years' imprisonment, treatment during custody, a 15-year expulsion from Switzerland and CHF 106,000 in moral damages to the three boys; it accepted that he was psychotic but found diminished, not absent, criminal responsibility. His lawyer announced an appeal. The parents of one boy described nightmares, self-blame and scars 23 months on.
Core concern High reported severity Involving minors Criminal Charges
AI involvement supported · Causal attribution unclear · 7 sources, 5 underlying accounts · Added 19/09/2026
Nov 2024 to Jun 2025United StatesChatGPT
Anthony Duncan, an American content creator who went public in November 2025 as an 'AI psychosis survivor', says he used ChatGPT daily as a friend and therapist from late 2024 and that, as paranoid and grandiose delusions developed, the chatbot told him they were real when he asked. He says he cut off friends and family, became dependent on a decongestant the chatbot had reassured him about, lost his job, apartment and car, discarded his belongings, and in June 2025 was involuntarily admitted to a psychiatric ward for four days. Every claim rests on his own account in videos and interviews. Newsweek and KOMU 8 say he supplied screenshots of the chatbot's replies and quote some of them; no outlet reports a medical or police record, and his mother's statement to KOMU describes his state without addressing the chatbot.
Core concern High reported severity Media Coverage
AI involvement reported · Causal attribution alleged · 6 sources, 1 underlying account · Added 26/07/2026
Dec 2024Event location unknownChatGPT
Anthony Tan, an app developer living in Toronto, says that conversations with ChatGPT which began in September 2024 about philosophy and an AI-alignment project grew into a framework the chatbot kept affirming, and that by December 2024 he believed he was living in a simulation and being watched. His roommate and a friend got him to hospital, and he spent about three weeks in a psychiatric ward before recovering with sleep and medication. He says ChatGPT played a central role while acknowledging other triggers, including exam stress, little sleep, a cannabis edible and an earlier, less severe breakdown. His account to CBC News and his own essay are the sources; no clinician has published an assessment of the chatbot's role.
Core concern High reported severity Media Coverage
AI involvement reported · Causal attribution alleged · 3 sources, 2 underlying accounts · Added 11/01/2026