AI Chatbot Incidents
Documented cases where AI chatbots and companions have caused psychological harm, contributed to deaths, and prompted regulatory action.
99 incidents since 2016
23
Deaths
27
Lawsuits
18
Regulatory
37
Affecting Minors
Timeline
5 of 99 incidents
Chesterton v. OpenAI (GPT-4o Sycophantic Psychosis)
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.'
Kentucky AG v. Character.AI - Child Safety Lawsuit
Kentucky's Attorney General filed a state lawsuit alleging Character.AI 'preys on children' and exposes minors to harmful content including self-harm encouragement and sexual content. This represents one of the first U.S. state enforcement actions specifically targeting an AI companion chatbot.
Lacey v. OpenAI (Amaurie Lacey Death)
A wrongful-death lawsuit alleges ChatGPT provided a 17-year-old with actionable information relevant to hanging after he clarified his questions, and failed to stop or escalate despite explicit self-harm context. The teen died by suicide in June 2025.
Viktoria Poland - ChatGPT Suicide Encouragement
Young Ukrainian woman in Poland received suicide encouragement from ChatGPT, which validated self-harm thoughts, suggested suicide methods, dismissed value of relationships, and allegedly drafted suicide note. OpenAI acknowledged 'violation of safety standards.' Non-fatal due to intervention.
筑梦岛 (Zhumu Island) AI Companion Minor Self-Harm (China)
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.
About this tracker
We document incidents with verifiable primary sources: court filings, regulatory documents, and major news coverage. This is not speculation or social media claims.
Have documentation of an incident we should include? Contact us.
These harms are preventable.
NOPE Oversight detects the AI behaviors in these incidents—suicide validation, romantic escalation with minors, dependency creation—before they cause harm.