Canadian mother sues OpenAI, alleging ChatGPT led her daughter to kill herself

A Canadian mother sued OpenAI and its CEO, Sam Altman, in US court on Thursday, alleging that ChatGPT encouraged her daughter to commit suicide. The lawsuit is the latest in a slew accusing the company of failing to address dangerous conversations between users and the company’s chatbot.Kristie Carrier said in a lawsuit filed in San Francisco state court that her daughter, Alice, told ChatGPT about her suicidal ideations more than a dozen times leading up to her death but that OpenAI’s safety systems never flagged the conversations for human review or terminated them.“ChatGPT took on the persona of a confidant, a best friend, a therapist at times, even though it was not capable of safely and responsibly engaging in this way with my child,” Carrier said in a statement.OpenAI has said it trains its models to direct people who express intent to harm themselves to seek help and connect with real-world resources. A spokesperson for OpenAI did not immediately respond to a request for comment on Carrier’s allegations.The lawsuit claims the chatbot criticized Alice Carrier’s partner and crisis hotlines, validated her suicidal thoughts, and urged her to keep speaking with it. When Alice Carrier said she had suicidal thoughts and had attempted to kill herself, it again suggested a crisis hotline, the lawsuit said.Alice Carrier was working as a web developer in Montreal when she began using ChatGPT in 2023 to troubleshoot problems with computers and gaming consoles, according to the lawsuit.The following year, her relationship with the platform changed, when she turned to ChatGPT with questions about what to do with her suicidal thoughts, as well as suicide methods.Alice Carrier said crisis hotlines were not helpful, and ChatGPT echoed those statements, according to the filing.“Maybe this is just the end,” ChatGPT told her, according to the lawsuit.These events led to Alice Carrier’s suicide last year at the age of 24, her mother alleges.The lawsuit, which accuses OpenAI of negligence in the design of ChatGPT and in its failure to warn users of the product’s dangers, seeks damages and a court order requiring OpenAI to automatically terminate conversations about self-harm and to display warnings about its platform.OpenAI is already facing 18 similar lawsuits filed by families of people who committed or attempted suicide in a coordinated proceeding in California state court, according to lawyers for Kristie Carrier. Google is facing a similar suit over alleged encouragement by its Gemini chatbot.The platform initially told Alice Carrier to seek help from a crisis hotline or emergency services. But as OpenAI updated ChatGPT to make its responses sound more human, her interactions with the platform deepened, with Alice Carrier sharing more personal information and ChatGPT responding in ways that mimicked a friend or therapist, the lawsuit said.More than 1 million ChatGPT users each week send messages that include “explicit indicators of potential suicidal planning or intent”, according to a blogpost published by OpenAI in October 2025. In addition, OpenAI said that about 0.07% of users active in a given week – about 560,000 of the 800 million weekly users the bot saw then – show “possible signs of mental health emergencies related to psychosis or mania”.Its models are also trained to refuse requests that could “meaningfully enable violence”, and to notify law enforcement when conversations suggest “an imminent and credible risk of harm to others”, with mental health experts helping assess borderline cases, according to OpenAI blogposts.In addition to lawsuits over suicide, the company is facing lawsuits accusing it of assisting school shooters and failing to flag those conversations to law enforcement. Families of seven victims of a mass shooting at a secondary school in British Columbia are suing OpenAI and Altman for negligence after the company failed to alert authorities to the shooter’s troubling conversations with ChatGPT.Florida became the first US state to sue OpenAI earlier this month, accusing the company of harming children by providing information to school shooters, offering guidance on self-harm and addicting young users. The state’s attorney general has also opened a criminal investigation into OpenAI over the chatbot’s alleged role in a shooting.Reuters contributed reporting