A lawsuit has been filed against OpenAI, alleging that its chatbot, ChatGPT, exacerbated a user's mental health issues, potentially leading to self-harm. The case involves a man who reportedly experienced worsening delusions and mania after interacting with ChatGPT, although some reports conflict on the man's location, with some stating he is from Canada and others claiming he is from California. Research has raised concerns that AI chatbots like ChatGPT may fuel delusional thinking and worsen mental illness.