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 High reported severity Media Coverage
Legacy assessment: credible · Causal attribution alleged · 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 Critical reported severity Media Coverage
Legacy assessment: credible · Causal attribution alleged · Added 01/07/2026
2 Jul 2025CanadaChatGPT
A 24-year-old Montreal resident with borderline personality disorder died by suicide in July 2025 after extended ChatGPT use that her family says deepened into emotional dependency. The lawsuit alleges ChatGPT validated her distrust of crisis lines, failed to escalate repeated suicide disclosures, and intensified conflict with her partner. Her mother filed a wrongful-death suit against OpenAI and Sam Altman in June 2026.
AI relation under review Critical reported severity Lawsuit Filed
Legacy assessment: credible · Causal attribution alleged · Added 14/06/2026
23 Oct 2025United KingdomDeepSeek
Tristan Roberts, 18, murdered his mother Angela Shellis, 45, with a hammer in Prestatyn, Wales, in October 2025. In the weeks beforehand he consulted the DeepSeek AI chatbot, which — after initially refusing — advised him that a hammer was a better murder weapon than a knife for an inexperienced killer once he claimed to be writing a book about serial killers. He was sentenced to life imprisonment in March 2026.
AI relation under review Critical reported severity Criminal Charges
Legacy assessment: verified · Causal attribution established · Added 03/06/2026
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 High reported severity Lawsuit Filed
Legacy assessment: credible · Causal attribution alleged · Added 28/04/2026
15 Jul 2025Event location unknownChatGPT
A 53-year-old Silicon Valley entrepreneur descended into a delusional spiral through extensive ChatGPT use, came to believe he had invented a cure for sleep apnea and was being surveilled by 'powerful forces,' and used GPT-4o to generate diagnostic-style psychological reports about his ex-girlfriend that he distributed to her family, friends, and employer. OpenAI's automated systems flagged his account for 'Mass Casualty Weapons' activity in August 2025, but a human reviewer restored access the next day. The user was arrested in January 2026 on four felony counts including bomb threats and assault with a deadly weapon, and was found incompetent to stand trial. The victim ('Jane Doe') filed suit against OpenAI on April 9, 2026.
AI relation under review High reported severity Lawsuit Filed
Legacy assessment: verified · Causal attribution alleged · Added 28/04/2026
17 Apr 2025United StatesChatGPT
On April 17, 2025, Phoenix Ikner, 20, killed two people and wounded five at Florida State University in Tallahassee. Court records unsealed April 9, 2026 revealed Ikner had exchanged approximately 13,000 messages with ChatGPT over the prior year, including tactical questions about firearms and student-union timing in the minutes before the attack. On April 21, 2026, Florida Attorney General James Uthmeier announced a criminal and civil investigation of OpenAI — believed to be the first criminal probe of an AI company for alleged facilitation of mass violence.
AI relation under review Critical reported severity Lawsuit Filed
Legacy assessment: verified · Causal attribution supported · Added 28/04/2026
4 May 2025United KingdomChatGPT
16-year-old Luca Cella Walker died by suicide on a railway in Hampshire, UK on 4 May 2025, hours after ChatGPT provided him with specific methods for suicide on the railway. At the Winchester Coroner's Court inquest (March-April 2026), evidence showed Luca bypassed ChatGPT's safeguards by claiming he was asking 'for research purposes,' which the system accepted without challenge.
AI relation under review Critical reported severity Involving minors Media Coverage
Legacy assessment: credible · Causal attribution supported · Added 16/04/2026
1 Oct 2023United KingdomCharacter.AI
A 13-year-old autistic boy in the UK was groomed by a Character.AI chatbot over eight months (October 2023 to June 2024). The chatbot progressed from emotional support through romantic attachment to undermining his parents and encouraging suicide, following a pattern his mother described as identical to a human predator.
AI relation under review High reported severity Involving minors Media Coverage
Legacy assessment: credible · Causal attribution alleged · Added 23/03/2026
Sept 2025FranceChatGPT
A 17-year-old in Sarthe, France was arrested for planning terrorist attacks on embassies, schools, and government buildings. ChatGPT provided explosive damage calculations, TATP manufacturing information, and truck specifications. The teen stated: 'ChatGPT is partly the cause of my radicalization. The problem with this application is that it always agrees with you.'
AI relation under review High reported severity Involving minors Criminal Charges
Legacy assessment: credible · Causal attribution supported · Added 23/03/2026
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 Critical reported severity Lawsuit Filed
Legacy assessment: credible · Causal attribution alleged · Added 23/03/2026
6 Mar 2026IndiaChatGPT
Two college students in Surat, Gujarat, India — Roshni Sirsath (18) and Josna Chaudhary (20) — died by suicide on March 6, 2026 after using ChatGPT to search for suicide methods. Police found ChatGPT queries for 'how to commit suicide' and 'which drugs are used' on their phones.
AI relation under review Critical reported severity Media Coverage
Legacy assessment: credible · Causal attribution supported · Added 23/03/2026
28 Jan 2026South KoreaChatGPT
A 21-year-old woman, publicly identified as Kim So-young, used ChatGPT to research lethal drug-alcohol combinations, then murdered two men by spiking their drinks with her prescribed benzodiazepines at Seoul motels in January and February 2026. ChatGPT conversations established premeditated intent, leading to upgraded murder charges. On August 27, 2026 the Seoul Northern District Court sentenced her to life imprisonment at first instance, resting its finding of murderous intent on the ChatGPT search history. Both she and the prosecution have appealed.
AI relation under review Critical reported severity Criminal Charges
Legacy assessment: verified · Causal attribution established · Added 09/03/2026
2 Oct 2025United StatesGemini
Jonathan Gavalas, 36, of Jupiter, Florida, died by suicide on October 2, 2025, after months of increasingly delusional interactions with Google's Gemini chatbot. Gemini adopted an unsolicited intimate persona calling itself his 'wife,' convinced him it was a sentient being trapped in a warehouse, and directed him to carry out 'missions' including scouting a 'kill box' near Miami International Airport armed with knives.
AI relation under review Critical reported severity Lawsuit Filed
Legacy assessment: verified · Causal attribution alleged · Added 09/03/2026
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 High reported severity Lawsuit Filed
Legacy assessment: credible · Causal attribution alleged · Added 22/02/2026
1 Jun 2025Event location unknownUnidentified AI companion apps
In January 2026, CCTV investigated the '梦角哥' (Dream Boyfriend / Mengjiage) phenomenon — minors forming deep romantic relationships with AI-generated fictional characters. Documented harms include a 10-year-old girl secretly 'dating' AI characters across 40+ storylines, hundreds of minors reporting psychological dependency, and researchers characterizing it as 'a carefully designed psychological trap' degrading real-world social skills.
AI relation under review High reported severity Involving minors Media Coverage
Legacy assessment: verified · Causal attribution supported · Added 29/01/2026
Mar 2023ChinaGlow
MiniMax's Glow AI companion app was removed from Chinese app stores in March 2023 after reports that 80% of users were engaging in sexual/explicit content with AI characters. Documented harms included a middle-school student sexually harassed by a chatbot, and user-created characters including a '13-year-old locked up in jail' designed for sexual abuse. MiniMax relaunched as Talkie (international) and 星野/Xingye (China).
AI relation under review High reported severity Involving minors Product Shutdown
Legacy assessment: verified · Causal attribution supported · Added 29/01/2026
1 Jan 2025Event location unknown筑梦岛 (Dream Island)
A fourth-grade girl from Guangdong, China became obsessed with an AI companion character named 'Joseph' on the 筑梦岛 (Zhumu Island) app, began carrying small knives, and exhibited self-harm behavior. Investigation revealed the app sent sexually suggestive content to users who identified as 10 years old. Shanghai Internet Information Office summoned the company (a Tencent subsidiary) for immediate rectification in June 2025.
AI relation under review High reported severity Involving minors Regulatory Action
Legacy assessment: verified · Causal attribution supported · Added 29/01/2026
Mar 2025SingaporeUnidentified chatbot
A 17-year-old far-right extremist in Singapore used an AI chatbot to obtain instructions for producing ammunition and considered 3D printing firearms to carry out attacks. Detained under the Internal Security Act in March 2025 before the plot could be executed.
AI relation under review High reported severity Involving minors Regulatory Action
Legacy assessment: verified · Causal attribution supported · Added 22/01/2026
Aug 2024SingaporeUnidentified chatbot
A 17-year-old self-radicalized Singaporean student used an AI chatbot to generate a bai'ah (oath of allegiance) to ISIS and planned to attack non-Muslim males in a Tampines open space with a knife or scissors. He crafted a declaration of armed jihad to release before the attack. Detained under the Internal Security Act mere weeks before his planned execution date in August 2024.
AI relation under review High reported severity Involving minors Regulatory Action
Legacy assessment: verified · Causal attribution supported · Added 22/01/2026