Mayo Clinic will OWN the frontier healthcare AI model it is building with Microsoft. Microsoft will distribute it through Azure. That ownership split is the entire story.
Mayo brings 54M+ de-identified patient records, 5.8B+ images, and years of longitudinal linkage infrastructure. Microsoft brings compute, engineers, and Azure distribution. Neither could do this alone.
The benchmark driving the superintelligence language: Microsoft’s MAI-DxO hit 85.5% on 304 hard NEJM cases. Physicians averaged 20%. Catch: physicians were not allowed to look anything up. Not quite the same test.
Microsoft already owns Nuance DAX, the ambient scribe in thousands of hospital exam rooms. A Mayo-branded reasoning model plugs into that funnel directly. Models are becoming commodities. Trust is not.
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