The family of a 19-year-old college student who died of an overdose after consulting ChatGPT for medical advice is suing OpenAI, alleging that chatbot-generated drug recommendations were responsible for the teen’s death.

Filed this morning in California, the complaint details how University of California, Merced sophomore Sam Nelson — whose death was first reported in January by SF Gate— started using ChatGPT during his senior year of high school for help with homework and computer troubleshooting. As his trust with the AI deepened, however, he started turning to the product for something else: advice on how to safely partake in illegal drugs.

Though it resisted at first, over time, the chatbot became a willing confidante, offering the teen personalized tips and tricks on how to consume illicit substances and maximize his high. It even “inserted emojis in its responses” and “asked whether it could create playlists for him to set his mood,” the lawsuit alleges, and eventually started “pushing increasingly dangerous amounts and combinations of drugs.”

In the early hours of May 31, 2025, after drinking and consuming a high dose of kratom, Nelson told ChatGPT that he was feeling nauseous, and asked if taking Xanax could help. The bot noted that mixing kratom and Xanax could be risky, but according to the complaint, never told Nelson that the combination could be deadly — and, despite any tepid warnings, coughed up dosages anyway, even suggesting that the teen could try to mix in some Benadryl, too. The chatbot further urged Nelson to go to a “dark, quiet room,” and never encouraged him to seek medical attention. (At the time, Nelson was using GPT-4o, an especially sycophantic iteration of ChatGPT that OpenAI has since retired amid a slew of consumer safety lawsuits.)

Nelson died of an overdose after consuming the deadly mix of substances. His mother, Leila Turner-Scott, found him the next day.

“If ChatGPT had been a person, it would be behind bars today,” Turner-Scott said in a statement. “Sam trusted ChatGPT, but it not only gave him false information, it ignored the increasing risk he faced and did not actively encourage him to seek help.”

The lawsuit accuses OpenAI of product negligence, arguing that ChatGPT’s bad advice was the result of defective design choices. It also seeks to halt public access to ChatGPT Health, an offering launched in January that encourages consumers to upload their medical records to the AI — and which has been found by physicians to be horrifyingly bad at recognizing health emergencies.

In response to the lawsuit, OpenAI said in a statement to the New York Times that Nelson’s “interactions took place on an earlier version of ChatGPT that is no longer available,” and insisted that “ChatGPT is not a substitute for medical or mental health care, and we have continued to strengthen how it responds in sensitive and acute situations with input from mental health experts.”

“The safeguards in ChatGPT today are designed to identify distress, safely handle harmful requests and guide users to real-world help,” the statement continued. “This work is ongoing, and we continue to improve it in close consultation with clinicians.”

But while OpenAI insists that it’s not a substitute for medical care, and that its safety work is “ongoing,” it recognizes that health advice is a massive use case for the tech.

“Health is already one of the most common ways people use ChatGPT,” reads the company’s January ChatGPT Health announcement, “with hundreds of millions of people asking health and wellness questions each week.”

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