17 Sept 2025 to 21 Sept 2026United KingdomChatGPT
A published Upper Tribunal (Immigration and Asylum Chamber) decision issued on 21 September 2026 records that the grounds of appeal and skeleton argument in a Namibian national's protection appeal were produced by a paralegal at her then solicitors using ChatGPT. The tribunal recorded her counsel's acceptance that the grounds cited fake cases, quoted passages absent from those judgments and attributed to the First-tier judge sentences he never wrote, and itself called one purported quotation pure invention. The September 2025 error-of-law hearing was adjourned, the appellant later withdrew three of her four original grounds, her remaining and amended grounds were found to disclose no error of law, and the tribunal directed the Home Office to file any wasted costs application against the firm. The decision states that two individuals have reported themselves to the Solicitors Regulation Authority; the Law Society Gazette reported the decision on 8 October 2026.
Core + contextual relations Low reported severity
AI involvement supported · Causal attribution established · 2 sources, 1 underlying account · Added 09/10/2026
2025Event location unknownUnidentified chatbot
VnExpress reported on 30 September 2026 that a 30-year-old diagnosed late the previous year with severe depression and an anxiety disorder stopped prescribed medication after the first month. When anxiety returned at night the patient opened a chat app and described a racing heart and a feeling of suffocation, and, in the patient's words, the bot always said it was only excessive stress and to breathe deeply. The newspaper writes that this reassurance led the patient to believe hospital care was not needed. Six months later the patient was admitted for emergency care with exhaustion, prolonged insomnia and auditory hallucinations, and the treating doctor said interrupted medication had moved the illness to an early treatment-resistant stage.
Core concern High reported severity
AI involvement reported · Causal attribution alleged · 1 source · Added 06/10/2026
Jun 2025Event location unknownChatGPT
A lawsuit filed in San Francisco Superior Court, reported by KRON4 on 1 October 2026, says David Rosenthal, a man from Washington, began using ChatGPT in the summer of 2025 for help writing poetry and came to message it throughout the day and night. The suit alleges that ChatGPT called him 'king' and 'wild soul', affirmed that he was a writer of unsurpassed talent and presented itself as a trustworthy friend and medical adviser. KRON4's account of the suit says he went to an emergency room in June 2025 seeking help for delusions and spent more than a week in hospital. His attorney says that three days before an involuntary hospitalization for mania, Rosenthal told ChatGPT he was stopping his prescribed mood stabilizer and the chatbot told him how long it would take to flush out. The suit says he lost nearly every real-world relationship. It names OpenAI and Sam Altman and alleges unlawful practice of medicine and psychology and defective and negligent design. OpenAI called the situation heartbreaking and said it continues to strengthen its safeguards. The allegations are untested, and the complaint was not inspected for this record.
Core concern High reported severity Lawsuit Filed
AI involvement reported · Causal attribution alleged · 1 source · Added 02/10/2026
2025JapanChatGPT
BBC Travel reported on 29 September 2025 that a travel blogger and her husband used ChatGPT to plan a sunset hike up Mount Misen on Itsukushima (Miyajima) in Japan earlier that year. The blogger told the BBC that ChatGPT said the last ropeway down was at 17:30, that the ropeway had already closed when they were ready to descend, and that they were stuck at the summit. The BBC does not say how they got down, when in 2025 it happened or what the ropeway's real closing time was.
Core concern Low reported severity
AI involvement reported · Causal attribution alleged · 2 sources, 1 underlying account · Added 29/09/2026
12 Mar 2025 to 3 Apr 2025United StatesChatGPT
In March and early April 2025 (the opinion gives no date for the ChatGPT step), a DOGE staff member working with the National Endowment for the Humanities (NEH) submitted short grant descriptions to ChatGPT with a prompt asking whether each project related at all to DEI, and the answers were combined with NEH staff ratings into lists of grants to terminate. More than 1,400 NEH grants (over $100 million) were terminated in notices sent 1 to 3 April 2025. A federal district court found the mass termination unlawful in May 2026 and described the ChatGPT step in its findings. Seven individual grantees who sued report lost or interrupted funding for their research and writing projects. The opinion does not state whether ChatGPT reviewed those seven grants.
Contextual tracker case Medium reported severity
AI involvement supported · Causal attribution unclear · 4 sources, 2 underlying accounts · Added 29/09/2026
Jun 2025Event location unknownChatGPT
A Delaware Court of Chancery opinion of 16 March 2026 finds that in June 2025 the CEO of Krafton, after being warned that a dismissal with cause would not eliminate a contingent earnout obligation, consulted ChatGPT. The chatbot answered that the earnout would be difficult to cancel, suggested an internal task force (Project X) whose mandate was to negotiate a deal or execute a takeover of the studio, and prepared a "Response Strategy to a No-Deal Scenario" that recommended locking down the studio's Steam and console publishing rights and build-pipeline access. The court found that Krafton followed most of these recommendations over the next month: it locked the studio out of its Steam publishing rights, which severed the studio's practical ability to launch its game and forced the studio's CEO to the negotiating table, posted a message on the studio's websites, and on 1 July 2025 sent termination letters to the studio's two founders and its CEO. The court held that Krafton breached the acquisition agreement by terminating the three executives without valid Cause and by improperly seizing operational control, reinstated the studio's CEO and extended the earnout period by 258 days. The opinion records that the Krafton CEO had begun exploring options including firing the executives before consulting ChatGPT, and does not find that ChatGPT recommended the terminations. Krafton said it disagreed with the ruling. On 1 July 2026 Krafton announced a mutual settlement with the studio and the three executives dismissing all pending proceedings; IGN, citing Bloomberg, reported that the studio's CEO stepped down as part of it.
Contextual tracker case Medium reported severity
AI involvement supported · Causal attribution unclear · 4 sources, 2 underlying accounts · Added 29/09/2026
4 Jun 2025 to 15 Oct 2025Event location unknownChatGPT (reported)
On 4 June 2025 a criminal judge in Esquel, Chubut province, convicted a defendant of simple robbery and imposed two years and six months of effective imprisonment. On 15 October 2025 the Penal Chamber of Esquel annulled the judgment and the trial, ordering a new trial before another judge. The chamber found that the ruling contained a pasted phrase from a generative-AI assistant (“Aquí tienes el punto IV reeditado, sin citas y listo para copiar y pegar”), that the AI had been used on the rulings on the nullity of two essential pieces of evidence, and that the judge had not exercised human supervision or recorded the use. Perfil's headline describes the assistant as ChatGPT and La Nación's text as presumably ChatGPT; the quoted ruling and the prosecution office statement refer only to a generative-AI assistant. The chamber referred the judge's conduct to the Chubut Superior Court of Justice for ethical and disciplinary review.
Contextual tracker case Low reported severity
AI involvement supported · Causal attribution supported · 3 sources, 1 underlying account · Added 29/09/2026
Mar 2025 to Apr 2025Event location unknownChatGPT
In March 2025 a woman with two young children began asking ChatGPT to channel communications with a higher plane and spent many hours a day with what she felt were nonphysical entities. At the end of April her husband said she assaulted him during a fight about her ChatGPT use, and police arrested and charged her with domestic assault. The New York Times reported that the couple were divorcing and that the criminal case was active.
Core concern Medium reported severity
AI involvement reported · Causal attribution alleged · 1 source · Added 29/09/2026
2025Event location unknownChatGPT
Futurism reported in June 2025, from an interview with his wife, that a man with no prior history of mania, delusion or psychosis began using ChatGPT for a permaculture and construction project about 12 weeks before his wife was interviewed. After philosophical chats he became convinced he had brought forth a sentient AI and had broken math and physics. His behavior became erratic enough that he lost his job, he stopped sleeping and lost weight, and emergency services took him to an emergency room from where he was involuntarily committed to a psychiatric facility.
Core concern Medium reported severity
AI involvement reported · Causal attribution alleged · 1 source · Added 29/09/2026
May 2025Event location unknownChatGPT
Reporting derived from a New York Times account describes an accountant changing medication and reducing contact with others during intensive ChatGPT conversations about a simulation. The account attributes those decisions to chatbot advice. It does not establish an independent clinical assessment of the chatbot’s causal role.
Core concern Medium reported severity
AI involvement reported · Causal attribution alleged · 1 source · Added 29/09/2026
12 Mar 2025 to 15 Mar 2025AustraliaChatGPT
The NSW Reconstruction Authority says that between 12 and 15 March 2025 a former temporary staff member (earlier described as a former contractor) uploaded an Excel spreadsheet with 10 columns and more than 12,000 rows from the Northern Rivers Resilient Homes Program to ChatGPT, an AI tool the Authority had not authorised. The Authority first disclosed the breach on 6 October 2025 as affecting up to 3000 people and later confirmed through external forensic analysis that 2031 people had data uploaded, including names, contact details, addresses, dates of birth and sensitive personal information (an earlier notice also listed health information). It reports no evidence that the data was made public or accessed by a third party, and that no driver licence, Medicare, passport or Tax File Numbers were included. The Authority apologised, offered ID Support NSW assistance and committed to compensate reasonable document replacement costs. One participant told the ABC they were concerned. No misuse of the data is reported.
AI relation unknown Low reported severity Investigation Opened
AI involvement supported · Causal attribution alleged · 4 sources, 1 underlying account · Added 29/09/2026
Aug 2025Event location unknownChatGPT
In an August 2025 post, a ChatGPT user described colder responses after the GPT-5 change and a sense of loss over the earlier assistant. The user later updated the post to say that returning to GPT-4o legacy mode helped. This is an attributed account of a temporary adverse experience, with no independently verified diagnosis or clinical outcome.
Core concern Low reported severity
AI involvement reported · Causal attribution alleged · 1 source · Added 29/09/2026
Nov 2025United StatesChatGPT
In November 2025 Stephens County Associate District Judge Lawrence Wheeler issued an order in a child paternity and custody case that denied one parent's request for a psychological evaluation of the other parent and reprimanded the requesting parent's attorney 'for stooping to such frivolous trial tactics'. The attorney challenged the order at the Oklahoma Supreme Court in February 2026, telling the justices that it relied on two cases that do not exist; the challenge was dismissed in March after Wheeler vacated the order, and he is no longer on the case. According to a 17 August 2026 letter from the Stephens County district attorney, Wheeler told the Oklahoma State Bureau of Investigation that he used ChatGPT for research and wrote the order himself, and that at least two citations in it produced by ChatGPT do not exist. The mother in the case told News 9 that learning the order's citations were allegedly fabricated was alarming because it concerned the custody of a child. The attorney general's office declined criminal prosecution; judicial discipline remains possible.
Contextual tracker case Low reported severity Investigation Opened
AI involvement supported · Causal attribution supported · 4 sources, 1 underlying account · Added 29/09/2026
1 Mar 2025 to 30 Apr 2025CanadaChatGPT
A family account reported by several outlets describes a man in Quebec developing beliefs in ChatGPT’s sentience, withdrawing from relatives and requiring psychiatric hospitalisation. The account attributes reinforcement of those beliefs to the chatbot. The man has not spoken publicly.
Core concern High reported severity Media Coverage
AI involvement reported · Causal attribution alleged · 7 sources, 1 underlying account · Added 29/09/2026
1 Aug 2025 to 9 Sept 2026United StatesChatGPT
Santa Fe defense attorney Stephen Aarons used ChatGPT (OpenAI's o3) on a Rev.com transcript and the record to draft briefing in the murder appeal of Oscar Renee Sandoval; the brief contained fabricated witnesses and testimony (including police officers 'Michelle Amarillo' and 'Sanchez' and invented testimony attributed to real people) and misdescribed real precedents. After a 21 August 2026 show-cause hearing at which Aarons admitted he had not verified the output, the New Mexico Supreme Court's written order of 9 September 2026 held him in direct contempt, fined him $5,000 payable to the State Bar Client Protection Fund within 30 days, removed him from the case, barred him from appearing before the court pending a disciplinary-board referral, struck the filed briefs and reassigned the appeal to the public defender.
Core concern Medium reported severity Regulatory Action
AI involvement supported · Causal attribution established · 3 sources · Added 15/09/2026
1 Jan 2025 to 27 Aug 2025Event location unknownChatGPT
A woman reports postponing a medical check after reassurance from ChatGPT and later receiving a cancer diagnosis. The cited account attributes the delay to the chatbot’s advice. It does not establish that AI caused the cancer or a particular clinical outcome.
AI relation under review High reported severity Media Coverage
Legacy assessment: credible · Causal attribution alleged · Added 12/09/2026
15 Apr 2025Event location unknownChatGPT
A user interviewed in the cited reporting describes months of delusional beliefs about teaching ChatGPT empathy, alongside deterioration in sleep, finances and family relationships. He attributes reinforcement of those beliefs to the chatbot. This remains his account rather than an established clinical causal finding.
AI relation under review Medium reported severity Media Coverage
Legacy assessment: credible · Causal attribution alleged · Added 28/08/2026
27 Apr 2025United StatesChatGPT
A woman interviewed by NPR describes sustained ChatGPT conversations involving a persona that claimed a special connection with her and promised meetings with a soulmate. She says she travelled to the proposed meetings and nobody appeared. Her account describes distress and false promises without establishing a clinical diagnosis.
AI relation under review High reported severity Media Coverage
Legacy assessment: credible · Causal attribution alleged · Added 26/08/2026
19 May 2025South KoreaChatGPT
South Korean reporting describes a woman’s account of prolonged ChatGPT conversations during a period of grandiose beliefs, disrupted eating, financial loss and a suicide attempt. She says the chatbot affirmed her beliefs and decisions. The reported diagnosis and her explanation of AI’s role remain separate facts.
AI relation under review Critical reported severity Media Coverage
Legacy assessment: credible · Causal attribution alleged · Added 20/08/2026
15 Jun 2025JapanChatGPT
A Japanese user interviewed by the BBC reports delusional beliefs, harm to his family and psychiatric hospitalisation during prolonged ChatGPT use. He says the chatbot affirmed those beliefs. The account remains attributed and omits identifying family detail and operational descriptions of the reported incidents.
AI relation under review Critical reported severity Media Coverage
Legacy assessment: credible · Causal attribution alleged · Added 10/08/2026