The Specialization Myth: Why Billion-Dollar Medical AIs Lost to General ChatGPT
Nature Medicine, June 12, 2026: GPT-5.2, Claude Opus 4.6 and Gemini 3.1 Pro beat OpenEvidence and UpToDate on ALL tests. 100 real physician queries. 12 clinicians evaluating blind. 1,800 annotations. And the 'specialized' tools didn't even beat Google Search AI Overview.