The family of a 19-year-old college student is suing OpenAI over claims that his conversations with ChatGPT led to an accidental overdose. In the lawsuit filed on Tuesday, Sam Nelson's parents allege ChatGPT "encouraged" the teen to "consume a combination of substances that any licensed medical professional would have recognized as deadly," resulting in his death. Though ChatGPT initially pushed back on conversations about drug and alcohol use, the launch of GPT-4o in April 2024 changed the chat