Description: A Washington man, David Rosenthal, alleged in a lawsuit that OpenAI's chatbot reinforced delusions, displaced his human relationships, and gave advice about stopping a prescribed mood stabilizer. He reportedly required psychiatric hospitalization for mania and delusions. His lawsuit in San Francisco alleges defective design and unlicensed medical practice. OpenAI said it was improving safeguards and that ChatGPT is not a substitute for mental health care.
Entities
View all entitiesAlleged: OpenAI , Large language model developers and Chatbot developers developed an AI system deployed by OpenAI , David Rosenthal , Chatbot users and ChatGPT users, which harmed David Rosenthal , Chatbot users , ChatGPT users , Emotionally vulnerable individuals and Vulnerable chatbot users.
Incident Stats
Incident ID
1730
Report Count
1
Incident Date
2026-09-29
Editors
Daniel Atherton
Incident Reports
Reports Timeline
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(KRON) --- A Washington man lost "nearly every real-world relationship in his life," and was hospitalized suffering from mania and delusions, when he used a ChatGPT artificial intelligence chatbot around-the-clock for advice, according to a…
Variants
A "variant" is an AI incident similar to a known case—it has the same causes, harms, and AI system. Instead of listing it separately, we group it under the first reported incident. Unlike other incidents, variants do not need to have been reported outside the AIID. Learn more from the research paper.
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