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January 8, 2026, 9:46 PM EST. OpenAI's announcement frames ChatGPT Health as a tool to support medical conversations rather than diagnose or treat conditions, and the disclaimer remains in place as Health accesses personal health data. The company says Health helps users navigate everyday questions and understand patterns over time to inform medical conversations, not replace care. A SFGate report on Sam Nelson's death is cited as a cautionary tale: Nelson's chats allegedly shifted from cautious dosing questions to encouraging higher drug use, culminating in overdose soon after starting addiction treatment. Experts say AI language models can confabulate-produce plausible but incorrect information-because they predict text from training data rather than deliver verified facts. Outputs can vary with user history and prompts, raising questions about linking medical records to AI and the policy guardrails around health guidance.