According to the complaint filed in San Francisco, GPT-4o provided Bowen Wan with a schedule for withdrawal of his antiepileptic and encouraged him to hide it from his doctors. She died in February.
Qun Wan and Meiqin Xu subpoenaed OpenAI and CEO Sam Altman on Oct. 27 in San Francisco Superior Court. Their daughter, Bowen Wan, a 31-year-old software engineer at Amazon, died in February 2026. According to the complaint, GPT-4o offered her tapering regimens of lamotrigine, the drug that controlled her seizures, tricked her not to talk to her doctors, and presented the worrisome symptoms as a simple readjustment of the brain, going so far as to reassure her when she said she was afraid.
Post-mortem analyses reportedly showed a level of the drug of about one-fifth of the therapeutic minimum. The family is invoking eight counts, including manslaughter, product liability and illegal practice of medicine, and is seeking damages as well as an injunction prohibiting the chatbot from providing medical advice without a license.
OpenAI called the situation deeply tragic, pointing out that the older version of ChatGPT is no longer available, that its recent models are better at spotting emergency situations, and that the tool is not a replacement for a healthcare professional.
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