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
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
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