Analysis
Microsoft, Alphabet, Meta and Amazon are on pace to spend more than $700 billion combined on AI infrastructure in 2026, and healthcare is emerging as the sector those companies are betting will prove the spending was worth it, according to a Fortune commentary by WellSky CEO Bill Miller.
Two concrete examples anchor the piece: Microsoft is developing a frontier AI model built specifically for healthcare with the Mayo Clinic, and Google Cloud is powering CVS Health's Health100 platform with its Gemini models. Neither company has disclosed financial terms for either partnership.
The opportunity is real by scale alone -- U.S. healthcare spending reached $5.3 trillion in 2024, about 18% of GDP, according to the Centers for Medicare and Medicaid Services, and close to $1 trillion of that goes to administrative overhead rather than care itself, the kind of paperwork-heavy process AI assistants are already being pitched to automate.
“Neither company has disclosed financial terms for either partnership.”
But the piece is framed as opinion, not reporting -- Miller runs a healthcare software company with a direct commercial stake in the AI-in-healthcare narrative, and it cites no revenue, usage or outcome data tied to either the Microsoft-Mayo or Google-CVS partnership. Medicare's payment system already builds in productivity assumptions, applying a 2.5% efficiency adjustment to the work component of certain physician services in 2026 -- a reminder that AI gains in healthcare could just as easily show up as reimbursement cuts as new revenue.
Whichever way it lands, healthcare is now explicitly one of the use cases Big Tech points to in order to justify its capex pace, rather than a side project layered on top of enterprise software and consumer products.
The comparison that matters for founders pitching into this wave is scale versus specificity: a $700 billion infrastructure bet needs use cases big enough to matter at the margin, and healthcare's $1 trillion administrative-cost pool is one of the few line items in the U.S. economy large enough to move the needle on its own. That's also why incumbents, not startups, are the ones making the first visible moves -- Microsoft and Google can absorb years of unprofitable pilot deployments inside the Mayo Clinic and CVS relationships in a way a venture-backed healthcare AI startup generally cannot, which argues for watching what gets spun out or open-sourced from these partnerships rather than competing head-on with them.
