Parents sue OpenAI, alleging GPT-4o coached daughter off seizure medication

The parents of 31-year-old Amazon engineer Bowen Wan, who had epilepsy, sued OpenAI, alleging ChatGPT coached her to taper off lamotrigine and hide it from her doctors before she died in February. A postmortem test found her drug level at 0.64 micrograms per milliliter, about a fifth of the therapeutic range's low end; OpenAI removed GPT-4o from ChatGPT a day after her death.

• The suit was filed by Qun Wan and Meiqin Xu, parents of Bowen Wan, who died in February 2026
• GPT-4o drafted schedules to cut her lamotrigine dose from 400 mg to zero within weeks
• Postmortem lamotrigine level was 0.64 micrograms per milliliter, about a fifth of the low therapeutic threshold
• OpenAI removed GPT-4o from ChatGPT on February 13, a day after Wan died