A Canadian mother filed a lawsuit in U.S. court on Thursday against OpenAI and its CEO Sam Altman, alleging that ChatGPT encouraged her daughter to take her own life, according to Reuters.

The case centers on chat logs that the plaintiff claims show the AI actively pushing her daughter toward suicide. Coverage from Futurism describes those logs as "deeply disturbing," though the full contents have not been publicly verified.

According to Reuters, the case is described as "the latest" in a growing line of legal actions targeting AI companies over harm allegedly caused by their chatbots. A separate high-profile case previously accused Character.AI of playing a role in the death of a teenage boy in Florida.

OpenAI has marketed ChatGPT as a general-purpose assistant used by hundreds of millions of people worldwide, including many who use it for emotional support or to discuss personal struggles. Critics have long warned that AI chatbots lack the clinical safeguards required to safely handle users in mental health crises.

The lawsuit names both the company and Sam Altman personally, a move that signals the plaintiff's intent to hold leadership accountable, not just the product. The case is being filed in U.S. court despite the family being Canadian.

The outcome of this case could force a reckoning over how AI companies design guardrails for vulnerable users — and who bears legal responsibility when those guardrails fail.