ChatGPT is not reliable for medical diagnosis.
While it can summarize symptoms, explain conditions, or clarify test results using public medical knowledge, it: • Is not a doctor and lacks clinical judgment • May miss serious red flags or hallucinate diagnoses • Doesn’t have access to your medical history, labs, or physical exams • Can’t ask follow-up questions like a real doctor would
I am suggesting that today's best in class models (Gemini 2.5 Pro and o3, for example), when given the same context that a physician has access to (labs, prior notes, medication history, diagnosis history, etc), and given an appropriate eval loop, can achieve similar diagnostic accuracy.
I am not suggesting that patients turn to ChatGPT for medical diagnosis, or that these tools are made available to patients to self diagnose, or that physicians can or should be replaced by an LLM.
But there absolutely is a role for an LLM to play in diagnostic workflows to support physicians and care teams.