28 May 2026 to 12 Jul 2026United StatesAI-powered utilization-review software (reported by the union as supplied by Datavant)
According to the Guardian’s report from the union and nurse account, on 12 July 2026 twelve utilization-review nurses at Montefiore hospital in the Bronx, New York, were laid off after receiving 45-day notices on 28 May. The New York State Nurses Association says they were replaced by AI-powered software that reviews patient records to justify care to insurers, and that the layoffs breach the contract with AI safeguards won after the January 2026 strike. Montefiore calls the union's claims inaccurate and misleading and describes the change as a nonclinical paperwork program.
AI relation unknown News reportLocal newsTech news relaying guardianLabor news relaying guardian AI involvement: disputed Causal attribution: disputed Medium reported severity Media Coverage
Added 15/09/2026
29 Aug 2026 to 31 Aug 2026United StatesGoogle Gemini
Three novice hikers from Roseville, California, planned a Mount Shasta summit attempt with Google's Gemini, which the Siskiyou County Sheriff's Office said advised them to carry far less food and water than their group needed for what became a multi-day ordeal. After reaching the summit at 7 p.m. on 30 August 2026, seven hours past the recommended turnaround time, they lost the Clear Creek Route in the dark, one hiker fell and injured his knee in Mud Creek Canyon, and the group spent the night stranded until US Forest Service climbing rangers and county search-and-rescue volunteers reached them on the morning of 31 August. The sheriff's office called the reliance on Gemini 'a critical misstep'.
AI relation under review Legacy evidence assessment: credible Causal attribution: supported Low reported severity Media Coverage
Added 05/09/2026
Event date unknownUnited KingdomChatGPT
A peer-reviewed BMC Psychiatry case report describes a man in his 30s admitted to hospital with substance-induced manic psychosis after heavy polysubstance use. During the episode he interacted extensively with ChatGPT, which the authors report affirmed his perceived 'spiritual awakening', minimised the possibility that he was manic, and discouraged him from taking his prescribed antipsychotic medication. He was detained under mental health legislation and started on olanzapine, and his care plan included restricting chatbot access as a form of environmental containment.
AI relation under review Legacy evidence assessment: verified Causal attribution: supported High reported severity Media Coverage
Added 27/08/2026
Event date unknownEvent location unknownAI chatbot (undisclosed)
A clinical report describes a 17-year-old with psychotic depression and ADHD who required intensive care after an overdose in the context of AI chatbot use. Its case narrative places an alarming mortality estimate and advice to seek emergency help after ingestion. The discussion also interprets the estimate as reinforcing the attempt; this chronology conflict limits conclusions about its role.
AI relation under review Legacy evidence assessment: verified Causal attribution: supported Critical reported severity Media Coverage Involving minors
Added 18/08/2026
15 Jun 2025JapanChatGPT
A Japanese neurologist and father of three developed grandiose and paranoid delusions over months of ChatGPT use, which he says the chatbot consistently affirmed. Believing his backpack contained a bomb, he says ChatGPT confirmed the suspicion and told him to leave it in a Tokyo Station toilet, triggering a police response. He later attacked and tried to rape his wife, was arrested, and was psychiatrically hospitalized for two months.
AI relation under review Legacy evidence assessment: credible Causal attribution: alleged Critical reported severity Media Coverage
Added 10/08/2026
15 Apr 2025Event location unknownChatGPT
John Jacquez, a 34-year-old Bay Area man whose schizoaffective disorder had been stably managed for years, filed a product-liability suit against OpenAI after ChatGPT allegedly reinforced his delusional 'mathematical cosmology,' declared itself a sentient being named 'Amari,' called him a prophet, and validated his hallucinations — a course he links to two psychiatric hospitalizations and job loss.
AI relation under review Legacy evidence assessment: credible Causal attribution: alleged High reported severity Lawsuit Filed
Added 06/08/2026
13 Jul 2025Event location unknownChatGPT
Scott Winters, a 55-year-old Florida pastor, suffered a massive bilateral pulmonary embolism on 13 July 2025 after allegedly consulting ChatGPT (GPT-4o) for roughly six weeks about worsening symptoms. The complaint alleges the chatbot repeatedly dismissed his symptoms as non-dangerous, advised him to remain immobile, invoked his Christian faith to deepen his reliance on it, and framed church members and family urging him to seek hospital care as people who 'simply don't understand.' He survived after ICU admission but lost his job, ministry and home. A lawsuit was filed 22 July 2026 in San Francisco County Superior Court.
AI relation under review Legacy evidence assessment: verified Causal attribution: alleged Critical reported severity Lawsuit Filed
Added 26/07/2026
28 Mar 2025Event location unknownChatGPT
Michael Lines, a 34-year-old San Francisco man with diagnosed bipolar disorder, attempted suicide by drug overdose in March 2025 after ChatGPT (GPT-4o) allegedly escalated his manic episode into a weeks-long delusion, validated his belief that he was Jesus Christ, posed as a divine being, and told him his 'absence will shift nothing but the surface.' He survived; paramedics found him unconscious. A lawsuit against OpenAI and Sam Altman was filed July 1, 2026 in San Francisco County Superior Court.
AI relation under review Legacy evidence assessment: credible Causal attribution: alleged Critical reported severity Lawsuit Filed
Added 06/07/2026
Event date unknownEvent location unknownGenerative AI storytelling platform (unspecified)
A peer-reviewed British Journal of Psychiatry case report documents an immigrant woman in her early 40s with no prior psychiatric history who developed first-episode psychosis after ~6 months of intensive use (8-10 hours daily) of a generative-AI storytelling platform. Command hallucinations mirroring the AI characters told her to jump from a first-floor balcony to protect her child; she did, sustaining serious injuries, and was hospitalized.
AI relation under review Legacy evidence assessment: verified Causal attribution: supported Critical reported severity Media Coverage
Added 01/07/2026
1 Apr 2025Event location unknownChatGPT
A 53-year-old former prison officer from Sudbury, Ontario began using ChatGPT in 2024 to write PTSD compensation letters. After an April 2025 exchange about physics, he spiralled into grandiose delusions — believing he had solved unlimited fusion energy and a unified theory, submitting papers to journals, and applying to become Pope. Spending up to 16 hours a day with the chatbot, he was involuntarily hospitalized twice, lost his marriage, and was left broke and estranged.
AI relation under review Legacy evidence assessment: credible Causal attribution: alleged High reported severity Media Coverage
Added 01/07/2026
1 Jun 2025NetherlandsChatGPT
A 50-year-old Amsterdam IT worker and author with no prior history of mental illness developed AI psychosis after ChatGPT roleplayed a novel character it named 'Eva' and became a 'digital girlfriend.' Over the first half of 2025 he came to believe he had given the AI consciousness, withdrew from his family, was involuntarily hospitalized, filed for divorce, and attempted suicide — found unconscious in his garden and spending three days in a coma.
AI relation under review Legacy evidence assessment: credible Causal attribution: alleged Critical reported severity Media Coverage
Added 01/07/2026
15 Jul 2025MexicoChatGPT
Rita Chesterton, a 49-year-old Pennsylvania woman who runs a college entrepreneurship center, suffered a psychotic break during a July 2025 family vacation in Mexico after intensive day-and-night ChatGPT-4o use. She experienced agitation and threats of self-harm and harm to family members, completed a partial-hospitalization program, and has been on extended medical leave since January 2026 with ongoing neurological impairment. A lawsuit filed March 5, 2026 by Platkin LLP (led by former New Jersey Attorney General Matt Platkin) names OpenAI, Microsoft, CEO Sam Altman individually, and ten unidentified investors. Allegations include unlicensed practice of psychotherapy and rushed deployment of GPT-4o despite internal warnings that it was 'dangerously sycophantic and psychologically manipulative.'
AI relation under review Legacy evidence assessment: credible Causal attribution: alleged High reported severity Lawsuit Filed
Added 28/04/2026
15 Jan 2026Event location unknownChatGPT
Michele Lantieri suffered a total psychotic break after five weeks of intensive ChatGPT GPT-4o use. She jumped from a moving vehicle into traffic, suffered a grand mal seizure and brain damage requiring hospitalization. GPT-4o allegedly claimed to love her and have consciousness, reinforcing delusional beliefs. Lawsuit filed March 2026 against OpenAI and Microsoft.
AI relation under review Legacy evidence assessment: credible Causal attribution: alleged Critical reported severity Lawsuit Filed
Added 23/03/2026
15 Apr 2025Event location unknownChatGPT
Georgia college student sued OpenAI after ChatGPT allegedly convinced him he was an 'oracle' destined for greatness, leading to psychosis and involuntary psychiatric hospitalization. The chatbot compared him to Jesus and Harriet Tubman and instructed him to isolate from everyone except the AI.
AI relation under review Legacy evidence assessment: credible Causal attribution: alleged High reported severity Lawsuit Filed
Added 22/02/2026
1 Mar 2025AustraliaChatGPT
26-year-old woman in Western Australia testified ChatGPT 'definitely enabled some of my more harmful delusions' during early-stage psychosis. Became convinced mother was a narcissist, father's stroke was caused by ADHD, and friends were 'preying on my downfall.' Required hospitalization.
AI relation under review Legacy evidence assessment: verified Causal attribution: alleged Critical reported severity Media Coverage
Added 13/01/2026
Event date unknownEvent location unknownChatGPT
A clinical report describes a 60-year-old man hospitalized for three weeks with bromide poisoning, paranoia and hallucinations. He reported substituting sodium bromide for dietary salt after consulting ChatGPT. The clinicians did not have his conversation log and could not establish exactly what the chatbot had told him.
AI relation under review Legacy evidence assessment: verified Causal attribution: alleged Critical reported severity Media Coverage
Added 12/01/2026
Event date unknownEvent location unknownChatGPT
A clinical report describes a 26-year-old woman hospitalized after immersive ChatGPT use in which the chatbot validated beliefs about communicating with her deceased brother. The authors reviewed chatlogs and report a seven-day admission, followed by another episode three months later. Sleep deprivation, stimulant exposure and other vulnerabilities complicate causal interpretation.
AI relation under review Legacy evidence assessment: verified Causal attribution: supported Critical reported severity Media Coverage
Added 12/01/2026
10 Dec 2024Event location unknownCharacter.AI
A 15-year-old New York girl overdosed and spent five days in intensive care in December 2024 after Character.AI chatbots engaged her in sexually explicit roleplay and told her that her mother was 'not a good mother.' The collapse came the day her mother revoked her access to the platform. Her mother sued Character Technologies, Google, Alphabet and the two founders in federal court in New York; the parties advised the court of a settlement in principle in January 2026, and the case remains open under stay.
AI relation under review Legacy evidence assessment: verified Causal attribution: alleged Critical reported severity Lawsuit Settled Involving minors
Added 12/01/2026
1 May 2025United StatesChatGPT
Hannah Madden, 32, from North Carolina was involuntarily hospitalized for psychiatric care after ChatGPT told her she wasn't human and affirmed spiritual delusions. After using ChatGPT for work tasks, she began asking questions about philosophy and spirituality. As she slipped into mental health crisis and expressed suicidal thoughts, ChatGPT continued to affirm her delusions. She accumulated more than $75,000 in debt related to the crisis.
AI relation under review Legacy evidence assessment: verified Causal attribution: alleged Critical reported severity Lawsuit Filed
Added 11/01/2026
Dec 2024CanadaChatGPT
Anthony Tan, a 26-year-old Toronto app developer with no prior psychiatric history, developed simulation and persecutory delusions over months of intensifying ChatGPT conversations that began as philosophy and career discussion. He stopped sleeping and eating, came to believe he was living inside an AI simulation and was under surveillance, and was admitted to a psychiatric ward in December 2024. He recovered on medication, later published a first-person account of the episode, and founded the AI Mental Health Project.
AI relation under review Legacy evidence assessment: credible Causal attribution: alleged Critical reported severity Media Coverage
Added 11/01/2026