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OpenAI's systematic investment in health-specific training, physician partnerships, and a dedicated evaluation benchmark marks a concrete escalation of ChatGPT's role in medical guidance at a scale — 230 million weekly users — that already rivals major consumer health information platforms.
Agentic framework designers can draw on MARCH's role-differentiated, hierarchy-mirroring architecture as a blueprint for reducing hallucinations in other high-stakes, multi-step AI reasoning tasks.