# Vercel — How OpenEvidence scales medical search for 650K doctors

- Company: Vercel (vercel.com)
- Announced: 2026-11-03
- Category: not stated
- Coverage: not counted
- Announcement: no
- Group: routine
- Source: https://vercel.com/blog/how-openevidence-scales-medical-search-for-doctors
- Record: https://forck.live/items/31127-how-openevidence-scales-medical-search-for-650k-doctors
- Subject: v0 / AI SDK / AI Gateway

OpenEvidence runs its medical search for 650,000 doctors on Vercel, and the platform's Fluid compute cut its serverless spend by 90% while performance held. The company's small engineering team, mostly Python and machine learning specialists, builds the physician-facing web application with Next.js and relies on Vercel for deployments and capacity. OpenEvidence supported more than 20 million clinical consultations in January 2026, and the company reported that more than 100 million Americans were treated by doctors using it in 2025. Engineers push to a development branch to get a preview link for demos, and merging to production triggers a build that reaches doctors in about five minutes, with rollback to a previous deployment if a release needs reverting. When the product went viral on TikTok, reaching around two million views in under a week, response times stayed fast and error rates remained near zero without extra capacity provisioning. VP of Engineering Micah Smith said the team reduced serverless spend by 90% while maintaining the same performance, and that Vercel is less than 5% of overall infrastructure spend even at 1000x growth. Take Home, the first patient-facing application, has its own project and domain so engineers can update the patient experience without deploying the other applications.

## Evidence

Verbatim from https://vercel.com/blog/how-openevidence-scales-medical-search-for-doctors:

> Copy link to heading OpenEvidence on Vercel
> 
> Serves 650,000 doctors with medical search
> 
> Completes production deployments in about five minutes
> 
> Absorbs traffic spikes without additional capacity provisioning
> 
> Reduced serverless spend by 90% with Fluid compute
> 
> Updates doctor- and patient-facing applications independently
> 
> OpenEvidence helps physicians find medical evidence during care, whether they’re checking a dosage on intensive care rounds or handling a case outside their specialty without a specialist nearby. Answers draw on peer-reviewed literature and include citations, so doctors can examine the sources behind them.
> 
> OpenEvidence’s small team began using Vercel to get early experiments online and kept that workflow as the product grew, relying on the platform to handle web deployments and capacity.
> 
> Copy link to heading Building software physicians depend on
> 
> The stakes are different when software helps inform medical decisions. An incorrect answer can affect how a doctor treats a patient, while an unavailable application can cut off access to evidence when it is needed.
> 
> OpenEvidence supported more than 20 million clinical consultations in January 2026 .

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