{"meta":{"exportedAt":"2026-10-23T15:17:46.776Z","formatVersion":2,"selection":{"q":"brain_damage","system":"","harm":"","context":"","country":"","role":"","relation":"","evidence":"","year":"2025","response":"lawsuit","severity":"","verification":"","view":"incidents","sort":"added"},"totalIncidents":1,"coverage":{"cases":1,"countries":0,"languages":1,"unknownLocation":1,"locationPending":0,"unknownLanguage":0,"unknownDate":0,"lawsuits":1,"regulatory":0,"minors":0,"coreRelations":0,"contextualRelations":0,"mixedRelations":0,"unknownRelations":1,"relationPending":1,"relationUnknown":0},"countingNote":"Distinct public cases in this selection. People counts apply within individual cases only; cross-case person overlap has not been resolved. No population incidence estimate.","affectedCountNote":"Interpret person counts with affectedCountStatus and the reported effects. Unquantified zeros are placeholders, not a measured zero.","source":"AI incidents","publisher":"NOPE","url":"https://nope.net/incidents","license":"CC BY 4.0"},"incidents":[{"id":"2026-lantieri-v-openai","metadataReview":{"version":1,"geography":{"basis":"Re-checked on 2026-10-12 against the complaint itself (Lantieri v. OpenAI, Superior Court of California, County of San Francisco, file-stamped 02/27/2026, case number CGC-26-634445; PDF from the plaintiff firm, read in full in English) and the firm's PR Newswire release of 6 March 2026 (English). The complaint places the conversations between 14 April and 15 May 2025 and describes the harmful events of 15 May 2025: entry into two neighbours' apartments, the jump from a moving vehicle on the way to the hospital, the grand mal seizure in the emergency room and the intensive care stay. It names no city, county, state or hospital for any of these events. Its venue paragraph says wrongful conduct occurred in San Francisco County, which refers to the defendants' conduct, not to where the plaintiff was harmed. Paragraph 19 states that the plaintiff is a resident of Philadelphia, Pennsylvania, which supports affected_person_countries US; residence was not used as the event location, so event_countries stays a reviewed unknown. The caption and the release support court_countries US. The 2026-09-15 evidence passage \"Bay Area, California\" from victim_description is not carried forward because the complaint contradicts it.","evidence":[{"kind":"source_body","locator":"Plaintiff Michele Lantieri is a natural person and resident of Philadelphia, Pennsylvania.","location":"https://stranchlaw.com/wp-content/uploads/2026/03/2026-02-27-Lantieri-v-OpenAI-Complaint.pdf","supports":["affected_person_countries"],"countries":["US"]},{"kind":"source_body","locator":"FOR THE COUNTY OF SAN FRANCISCO","location":"https://stranchlaw.com/wp-content/uploads/2026/03/2026-02-27-Lantieri-v-OpenAI-Complaint.pdf","supports":["court_countries"],"countries":["US"]},{"kind":"source_body","locator":"has filed a lawsuit in the Superior Court of San Francisco against OpenAI and Microsoft","location":"https://www.prnewswire.com/news-releases/stranch-jennings--garvey-files-lawsuit-against-openai-302707198.html","supports":["court_countries"],"countries":["US"]}],"court_countries":["US"],"event_countries":[],"affected_person_countries":["US"]},"unresolved":["Event setting: the complaint names no city, state or hospital for the 15 May 2025 events; event_countries remains a reviewed unknown.","Narrative corrections made from the complaint by a separate update on 2026-10-12, outside this metadata review: the residence (paragraph 19, Pennsylvania; previously recorded as Bay Area, California), the event window (conversations 14 April to 15 May 2025 and hospitalisation on 15 May 2025; previously 2026-01-15), the file stamp of 27 February 2026 (the firm's release is dated 6 March 2026) and Samuel Altman as a named defendant."],"reviewed_on":"2026-10-12","source_reviews":[{"url":"https://stranchlaw.com/wp-content/uploads/2026/03/2026-02-27-Lantieri-v-OpenAI-Complaint.pdf","notes":"Complaint PDF fetched live on 2026-10-12 (HTTP 200, 529,059 bytes; a byte-identical Internet Archive capture of 11 May 2026 exists), text extracted with pdftotext and read in full. Linked from the firm's release under an older filename that now returns HTTP 404; the live file is named 2026-02-27-Lantieri-v-OpenAI-Complaint.pdf. Defendants include OpenAI entities, Microsoft and Samuel Altman. Gives the residence (Philadelphia, Pennsylvania), the conversation window 14 April to 15 May 2025, the 15 May 2025 events and hospital messages of 16 and 17 May 2025; names no place for the events or the hospital.","access":"read","language":"en"},{"url":"https://www.prnewswire.com/news-releases/stranch-jennings--garvey-files-lawsuit-against-openai-302707198.html","notes":"Cited primary source. Fetched live on 2026-10-12 (HTTP 200, html lang en). Plaintiff firm's release datelined OAKLAND, Calif., March 6, 2026; the dateline is the firm's office, not an event location. Describes the jump from a moving vehicle into traffic and the seizure without a place. Advocacy release by plaintiff counsel.","access":"read","language":"en"},{"url":"https://www.ttownmedia.com/online_features/press_releases/stranch-jennings-garvey-files-lawsuit-against-openai/article_f871c0ab-870c-5eda-9411-358bf024d972.html","notes":"Press-release mirror. Fetch on 2026-10-12 returned HTTP 429 (67 bytes); not read, so no language is recorded. It mirrors the PR Newswire text and adds no independent account.","access":"unavailable","language":null},{"url":"https://socialmediavictims.org/chatgpt-lawsuits/","notes":"Social Media Victims Law Center ChatGPT lawsuit tracker, fetched live on 2026-10-12 (HTTP 200, html lang en-US). The current page does not mention Lantieri, so it supplies no location or case detail for this record.","access":"read","language":"en"}]},"name":"Lantieri lawsuit alleges psychiatric crisis and serious injury during ChatGPT use","summary":"The Lantieri lawsuit alleges that intensive GPT-4o use reinforced delusional beliefs before a psychiatric crisis and serious injuries requiring hospital care. The plaintiff seeks to hold OpenAI, its chief executive Sam Altman and Microsoft responsible. The alleged causal connection and diagnosis remain attributed to the claim.","incidentDate":"2025-04-14","incidentEndDate":"2025-05-15","incidentKind":"single_event","incidentDatePrecision":"range","exposurePattern":"cumulative_relationship","reportedDate":"2026-03-06","aiSystem":"ChatGPT","aiProduct":"ChatGPT","aiCompany":"OpenAI","severity":"critical","verificationStatus":"credible","harmCategories":["delusion_reinforcement","dependency_creation","psychological_manipulation","crisis_response","identity_destabilization"],"harmOutcomes":["physical_injury","hospitalization","psychiatric_deterioration","functional_impairment"],"harmOutcomeSummary":"According to the complaint, Michele Lantieri jumped from a moving vehicle during a psychotic break, suffered a seizure and brain injury, and required hospitalization after five weeks of intensive GPT-4o use.","frameworkFacets":["P1a","P1c","P1d","P2c","P3a","P3b","P3d","P5a"],"pathwayDirection":"inward","causationStatus":"alleged","participantUsersAffectedMin":1,"otherPeopleHarmedMin":0,"affectedCountStatus":"exact","affectedCountEvidence":"The complaint documents one named participant's injury, seizure, brain injury, and hospitalization.","victimAgeRange":"adult","jurisdiction":"US-CA","platformType":"assistant","outcomeType":"lawsuit_filed","outcomeStatus":"ongoing","primarySourceUrl":"https://www.prnewswire.com/news-releases/stranch-jennings--garvey-files-lawsuit-against-openai-302707198.html","primarySourceLabel":"PR Newswire (Stranch, Jennings & Garvey Press Release)","firstPublishedAt":"2026-03-23T06:59:27.928554+00:00","updatedAt":"2026-10-12T03:07:18.629706+00:00","scopeVersion":"participant-v2","tags":["lawsuit","chatgpt","openai","microsoft","psychosis","brain_damage","gpt-4o"]}]}