We stress tested many frontier AI models for multimodal medical reasoning (including GPT-5, Claude 3.5, Gemini 2.5 Pro). They’re not ready. Faulty reasoning, use of inappropriate shortcuts, hallucinations. Published today @NatureMedicine https://
nature.com/articles/s4159
1-026-04501-8
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Frontier AI models fail medical reasoning stress test, study finds
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