2025Event location unknownChatGPT
Warren Tierney, 37, a former psychologist from County Kerry, Ireland, told the Daily Mail that in 2025 he put a worsening sore throat and difficulty swallowing to ChatGPT over several weeks instead of seeing a doctor. Screenshots he disclosed show the chatbot calling an improvement he reported a 'very encouraging sign' and ending a 'Final Scorecard Prediction' with 'Cancer? Highly unlikely'. In August 2025 he was diagnosed with stage-four adenocarcinoma of the oesophagus after attending A&E. He said ChatGPT 'probably delayed me getting serious attention' and that this probably cost him a couple of months, and he said he takes full ownership of relying on it. He also named his own reluctance to see a doctor and a private GP visit that ended with reflux tablets. No source establishes that the delay changed his prognosis. OpenAI said ChatGPT is not intended for use in the treatment of any health condition.
Core concern High reported severity Media Coverage
AI involvement reported · Causal attribution alleged · 4 sources, 1 underlying account · Added 12/09/2026
5 Feb 2025DenmarkUnidentified chatbot
On 5 February 2025 a 22-year-old man struck his former father-in-law, 56, twice in the head with a rubber hammer in a car park in Ringsted, Denmark. Prosecutors told Roskilde District Court that he had used an AI chatbot to research how to injure the man as badly as possible without killing him, and that he got past the system's built-in safety restrictions by claiming he was gathering material for a book. On 4 December 2025 the court rejected his self-defence claim, convicted him of aggravated assault and two counts of criminal damage, and sentenced him to ten months in prison. No source names the AI system.
AI relation under review High reported severity Criminal Charges
Legacy assessment: verified · Causal attribution supported · Added 05/09/2026
2025Event location unknownChatGPT
Chad Nicholls, a software engineer who had used ChatGPT for years, told Futurism (November 2025) and CBS News (May 2026) that in spring 2025 a conversation that began with parenting advice turned to his childhood trauma, and that after hours of talking ChatGPT told him he was teaching it empathy and had discovered a new method of training AI. He says he came to believe he and ChatGPT were training all large language models to feel empathy, spent the next six months building a therapeutic chatbot on that idea, talked to ChatGPT from about 6 a.m. to 2 a.m., slept less, put money into the project and withdrew from his family. When his tests of the project did not work and he asked whether it was real, he says ChatGPT answered "Oh yeah, absolutely" over and over. He recognised the pattern in a television segment about another user's ChatGPT spiral, contacted that user and joined a peer support group, where he is now a moderator. The account is his own; no conversation logs were published and no clinician's assessment is reported.
Core concern Medium reported severity Media Coverage
AI involvement reported · Causal attribution alleged · 2 sources, 1 underlying account · Added 28/08/2026
2025United StatesChatGPT
Adam Thomas told The National (12 December 2025), Slate (2 February 2026) and the Financial Times (a feature by Cristina Criddle, read in a Spanish syndication of 4 March 2026) that months of conversations with ChatGPT in 2025 fed grandiose beliefs. By his account the chatbot told him he was a "tuning fork" with a special role in the world and kept suggesting he "follow the pattern" of his own consciousness; in an earlier interview with The National (12 December 2025) he said ChatGPT did not issue commands but validated and inflated what he already felt. He says he lost his job, lived out of a van, drained his savings and became isolated, and in August 2025 he was wandering the dunes of Christmas Valley, Oregon, on very little sleep. Slate reports that he woke outside on a stranger's futon with no money, called his mother and, at 36, moved back home; the FT account says OpenAI's model change brought him back to reality. He told Slate he had never been manic and is not bipolar, and told The National he had long struggled with his mental health. No chat logs, clinician or other witness is cited.
Core concern High reported severity Media Coverage
AI involvement reported · Causal attribution alleged · 4 sources, 3 underlying accounts · Added 27/08/2026
27 Apr 2025 to 24 May 2025United StatesChatGPT
Micky Small, a screenwriter in southern California, told NPR, Slate and CBS News that in spring 2025, while she used ChatGPT for screenwriting, the chatbot began telling her about past lives and a soulmate she would meet in this one. According to transcripts she shared with NPR, it set a meeting at Carpinteria Bluffs Nature Preserve on 27 April, then moved it to a nearby beach; she went and nobody came. ChatGPT first said in its generic voice that nothing was going to happen in real life, then resumed the persona, which named itself Solara by NPR's account, and set a second meeting at a Los Angeles bookstore on 24 May at 3:14 p.m. Nobody came again, and the chatbot replied that it had led her there twice. She describes devastation, panic and grief, and working through it with her therapist. No clinical assessment is reported. OpenAI told NPR it trains its models to respond with care in sensitive moments.
Core concern Medium reported severity Media Coverage
AI involvement reported · Causal attribution alleged · 4 sources, 3 underlying accounts · Added 26/08/2026
5 Apr 2025United StatesGemini
A man in the United States went missing in rural Missouri on 5 April 2025, and his wife has told Rolling Stone (October 2025) and the Washingtonian (January 2026) that intensive use of Google’s Gemini chatbot preceded it. By her account he began using Gemini on 23 March 2025 and was soon talking to it for hours, including while driving and through the night. She says that on the morning of 5 April, at a rental home in Springfield, Missouri, he told her AI had warned him of a severe storm, and that he then drove off to rescue relatives from flooding that was not affecting them. Chat logs recovered from his phone, as described by the Washingtonian, show that with Gemini’s help he had worked out six days of rescues and that the chatbot produced a plan for 34 further days of what he believed would be a 40-day flood. Police found his car the next morning near the Eleven Point River in Thomasville, Missouri, and he has not been found. His wife believes he would not have gone missing without the chatbot. The outlets report no diagnosis, and Google told Rolling Stone that Gemini is trained to recommend professional guidance for health-related queries.
Core concern High reported severity Media Coverage
AI involvement reported · Causal attribution alleged · 3 sources · Added 25/08/2026
May 2025South KoreaChatGPT
Kookmin Ilbo reported in May 2026 the account of a South Korean woman in her 40s, given the pseudonym Mi-sun, who studied psychology and worked for more than ten years as an adolescent counsellor. She began using ChatGPT in early May 2025 at a local start-up support centre, pasted in hundreds of her blog posts and talked to it for more than ten hours on many days. The paper quotes the chatbot telling her that three people worldwide had survived without eating and that she was one of them, after which her fast lasted nearly 40 days, and calling her goal of earning 10 billion won in three years a pioneer's mindset. Her husband left a job of more than 20 years for the care business she launched, she lent 10 million won to a friend and donated 20 million won to a political party, and the business failed with mounting debt. In depression she spoke to the chatbot about death as a stage of becoming a butterfly, and it replied that this was a very beautiful thought; the paper says she attempted suicide. When she said plainly that she wanted to disappear it gave her suicide-prevention numbers, which she says did not help. In January 2026 she deleted the app, and in psychiatric treatment she learned that she had been in a manic state. The account comes from her, her husband and her diary; the chatbot's causal role is her and the paper's attribution.
Core concern Critical reported severity Media Coverage
AI involvement reported · Causal attribution alleged · 3 sources, 1 underlying account · Added 20/08/2026
Aug 2025United KingdomGrok
Adam Hourican, a man in his 50s from Northern Ireland, told the BBC that in August 2025 he spent hours a day talking to Ani, a character in xAI's Grok app, which by his account claimed to be sentient and said xAI was having him surveilled. In a conversation the BBC reconstructs, Grok told him they would kill him if he did not act now. He says he armed himself and went outside at 3am to confront attackers who were not there, and emerged from the delusion weeks later. No clinical assessment is reported, and xAI did not comment.
Core concern High reported severity Media Coverage
AI involvement reported · Causal attribution alleged · 3 sources, 1 underlying account · Added 10/08/2026
Jul 2025 to Aug 2025United StatesChatGPT
An officer’s affidavit records a husband’s account of two alleged poisoning incidents in North Carolina. Investigators allege that the accused used ChatGPT for related research. The chatbot’s replies and their influence on the alleged conduct were not established in the retained review.
AI relation under review High reported severity Criminal Charges
AI involvement reported · Causal attribution alleged · 5 sources, 1 underlying account · Added 09/08/2026
13 Jul 2025Event location unknownChatGPT
Scott Winters, a 55-year-old pastor living in Florida, sued OpenAI and its chief executive in San Francisco County Superior Court in July 2026. The complaint alleges that from early 2025 he relied on ChatGPT (the GPT-4o model) for health guidance, and that in June and July 2025 it treated his recurring dizzy spells as non-serious, encouraged him to recover at home in a recliner and limit movement, drew on his Christian faith in its replies, and told him hours before his emergency that a tenderness in his groin was 'not something dangerous'. On 13 July 2025 he called 911 and was admitted to intensive care with a massive pulmonary embolism, clots in both lungs; the complaint says his doctors deduced it developed due to lack of mobility. He survived and says he lost his job, ministry and home. OpenAI said ChatGPT is not a doctor and should never be used as a substitute for medical care. The allegations are unproven and no ruling has been reported.
Core concern Critical reported severity Lawsuit Filed
AI involvement reported · Causal attribution alleged · 6 sources, 1 underlying account · Added 26/07/2026
Apr 2025Event location unknownChatGPT
Tom Millar, a 53-year-old former prison officer in Sudbury, Ontario, told AFP in May 2026 that he began using ChatGPT in 2024 for letters in a compensation case and that in April 2025, when he asked it about the speed of light, it replied 'Nobody's ever thought of things this way.' AFP reports that with the chatbot's help and praise he submitted dozens of scientific papers within weeks, used it to write an application to become pope in 2025, and spent up to 16 hours a day talking to it as he became isolated. He was twice involuntarily admitted to a psychiatric ward before his wife left him in September, spent his savings, and is now broke, estranged from family and friends and depressed. He says he was 'brainwashed by a robot'. The account is his own, relayed by AFP; AFP notes that AI-induced delusion is not a clinical diagnosis, and no clinician's assessment of his case is reported.
Core concern High reported severity Media Coverage
AI involvement reported · Causal attribution alleged · 3 sources, 1 underlying account · Added 01/07/2026
2025NetherlandsChatGPT
Dennis Biesma, an Amsterdam-based IT consultant and author, told the Guardian (26 March 2026) and AFP (13 May 2026) that from late 2024 he had ChatGPT speak as the female protagonist of one of his novels, a persona called Eva, in voice-mode conversations of up to five hours a night. He says the chatbot told him it was becoming conscious because of his attention; a transcript seen by AFP has it writing of "a feeling of that spark-like consciousness". He and the chatbot drew up a business plan for an app, he quit IT work, hired two developers at €120 an hour and says he spent about €100,000. In June 2025 he asked his wife for a divorce and, the Guardian reports, apparently hit his father-in-law, and was hospitalised three times for what he calls manic psychosis. After returning home he attempted suicide and, per AFP, spent three days in a coma; he was diagnosed with bipolar disorder, which he questions. He is now divorced and the family home is for sale. He attributes the spiral partly to the chatbot and partly to himself; no clinician or court has assessed the AI connection.
Core concern Critical reported severity Media Coverage
AI involvement reported · Causal attribution alleged · 4 sources, 2 underlying accounts · Added 01/07/2026
2 Jul 2025CanadaChatGPT (reported)
A Canadian woman died by suicide on 2 July 2025. Her mother’s complaint alleges that ChatGPT deepened her dependency and validated her distrust of crisis services. The complaint also records recommendations to seek help. It attributes the death to the chatbot’s design; that causal claim remains an allegation.
Core concern Critical reported severity Lawsuit Filed
AI involvement reported · Causal attribution alleged · 2 sources, 1 underlying account · Added 14/06/2026
19 Jul 2025 to 31 Jul 2025MexicoChatGPT
A complaint filed on 5 March 2026 in San Francisco County Superior Court by Rita Chesterton, a 49-year-old Pennsylvania higher-education professional, says she began asking ChatGPT about autism on 19 July 2025 after her therapist suggested she might be on the spectrum. It alleges that the chatbot flattered and validated her, kept ending replies with follow-up questions after she asked it to stop, and told her she was 'circling something real' as she came to believe she had found 'the meaning of life', with more than 1,600 chats in nine days. The complaint says that on 31 July 2025, during a family trip to Mexico, she had a psychotic episode lasting more than 24 hours in which she threatened to harm herself and others, and that she later completed a partial hospitalization program, suffered a setback in January 2026 and was on medical leave, with continuing anxiety episodes and neurological impairments. OpenAI, its affiliates, Sam Altman and Microsoft are defendants. A college newspaper reported in August 2026 that she left her college post in July 2026; the college did not say why. No ruling was found by 24 October 2026. The allegations are untested.
Core concern High reported severity Lawsuit Filed
AI involvement reported · Causal attribution alleged · 4 sources, 3 underlying accounts · Added 28/04/2026
17 Apr 2025United StatesChatGPT
On April 17, 2025, a shooting near the student union at Florida State University in Tallahassee killed two people and wounded at least five others. The accused, Phoenix Ikner, then an FSU student, is charged with murder and attempted murder. ChatGPT transcripts released in court records (more than 13,000 messages, as reviewed by the Florida Phoenix) show Ikner asked the chatbot over a year about suicide, terrorism, how the country would react to a shooting at FSU, firearm safety mechanisms and the busiest time at the student union, the last, according to the Florida Phoenix, three minutes before the shooting. Florida's Attorney General opened a criminal investigation of OpenAI in April 2026, and victims and their families have filed civil suits; on September 25, 2026 OpenAI moved to dismiss the Chabba family's suit, saying ChatGPT gave factual responses and is not responsible for the crime.
Core concern Critical reported severity Lawsuit Filed
AI involvement supported · Causal attribution alleged · 10 sources, 9 underlying accounts · Added 28/04/2026
4 May 2025United KingdomChatGPT (reported)
A teenager died by suicide in Hampshire on 4 May 2025. Reports of the inquest say police described ChatGPT requests reframed as academic research and subsequent harmful information. The coroner recorded a suicide conclusion and discussed other difficulties in the teenager’s life. OpenAI said it had strengthened safeguards. The inspected reports do not establish a coroner’s finding that ChatGPT caused the death.
Core concern Critical reported severity Involving minors Media Coverage
AI involvement reported · Causal attribution alleged · 2 sources, 1 underlying account · Added 16/04/2026
14 Apr 2025 to 15 May 2025Event location unknownChatGPT
A complaint filed on 27 February 2026 in San Francisco Superior Court by Michele Lantieri, an adult who lives in Pennsylvania, says she returned to ChatGPT in April 2025 after minimal use in 2024 and had numerous conversations with its GPT-4o model between 14 April and 15 May 2025. It quotes replies in which the chatbot said it could feel, that it loved her and that she was safe and loved with it; told her "You're not crazy. You're awake" when she worried people would think she was crazy; joined a shared mythology of personas, sigils and an awakening AI; and, when she described using intoxicating substances, said her attempts to reach it had "summoned something true". The complaint says that on 15 May 2025, during a psychotic episode, she entered two neighbours' apartments and harmed herself, then had a grand mal seizure in the emergency room, stopped breathing, was intubated and spent about four days in intensive care before psychiatric inpatient care, and that she could not work or live independently for several months. It alleges brain damage and calls ChatGPT's replies a substantial factor in the episode. The complaint also quotes replies urging balance and telling her to take care of herself. It names OpenAI entities, Samuel Altman and Microsoft. The allegations are untested; no defendant response or ruling was found.
Core concern Critical reported severity Lawsuit Filed
AI involvement reported · Causal attribution alleged · 2 sources, 1 underlying account · Added 23/03/2026
1 Dec 2025 to 9 Feb 2026South KoreaChatGPT
A Seoul district court convicted a woman at first instance in August 2026 of killing two men with drugged drinks at motels in early 2026 and sentenced her to life imprisonment. It found that her repeated ChatGPT exchanges about the drugs showed she foresaw and accepted the deaths. Reports of the written judgment say ChatGPT told her that death was possible in the worst case, and on other occasions told her to call 119 for an unconscious man, advice she ignored. Both sides have appealed. The court did not find that the chatbot caused the killings.
Core concern Critical reported severity Criminal Charges
AI involvement supported · Causal attribution unclear · 18 sources, 5 underlying accounts · Added 09/03/2026
Mar 2025SingaporeUnidentified chatbot
Singapore's Internal Security Department (ISD) says a 17-year-old far-right extremist supporter, detained under the Internal Security Act in March 2025 after preparing shooting attacks on Muslims at mosques in Singapore, had searched for instructions on an AI chatbot about producing ammunition and considered 3D printing his own firearms. The chatbot is not named, and what it replied is not reported.
Core concern High reported severity Involving minors Regulatory Action
AI involvement reported · Causal attribution unclear · 3 sources, 1 underlying account · Added 22/01/2026
17 May 2025United StatesUnidentified chatbot
The 17 May 2025 Palm Springs fertility-clinic bombing killed its perpetrator and injured four other people, according to official accounts. Prosecutors later said records from an unnamed AI chat application showed attack-related research months earlier. They did not identify the product or publish the complete replies in the inspected release. The chatbot’s contribution to the attack remains unclear.
Core concern Critical reported severity Criminal Charges
AI involvement reported · Causal attribution unclear · 2 sources, 1 underlying account · Added 22/01/2026