# Vercel — How Mercor ships internal apps and billions of production tokens on one platform

- Company: Vercel (vercel.com)
- Announced: 2026-11-03T04:00:00+00:00
- Category: not stated
- Coverage: not counted
- Announcement: no
- Group: routine
- Source: https://vercel.com/blog/how-mercor-ships-internal-apps-and-billions-of-production-tokens-on-one-platform
- Record: https://forck.live/items/31101-how-mercor-ships-internal-apps-and-billions-of-production-tokens-on-one-platform
- Subject: v0 / AI SDK / AI Gateway

Mercor is running internal applications and open-model workloads on Vercel, using AI Gateway for model access and Passport for authentication, according to a Vercel case study. Mercor connects hundreds of thousands of domain experts with frontier AI labs and runs automated grading jobs, work that arrives in bursts and carries 24-hour deadlines. Its mix of direct integrations and third-party gateways could not supply enough token-per-minute capacity when demand surged, so requests hit provider limits and entered retry queues, stretching batch jobs beyond 12 hours. AI Gateway added inference capacity and failover routing between providers, and Mercor reports those jobs now finish in 2 to 3 hours. In its first 10 days on Gateway, the team routed 18 million requests and 63 billion tokens without hitting rate limits. Hundreds of engineers use open models through per-user keys with expiration dates, token limits and spend limits, so security can see which user, project and workload drives consumption. A few hundred people across business teams now build on Vercel, where the project count grew from fewer than a dozen to roughly 2,000, and Passport handles sign-in through an existing identity provider.

## Evidence

Verbatim from https://vercel.com/blog/how-mercor-ships-internal-apps-and-billions-of-production-tokens-on-one-platform:

> Copy link to heading Mercor on Vercel
> 
> Batch jobs cut from 12 hours to 2 hours
> 
> 18M requests and 63B tokens routed through AI Gateway in 10 days
> 
> Expert access provisioned in seconds via Vercel Passport
> 
> Over 2,000 projects created by hundreds of internal builders
> 
> Mercor connects hundreds of thousands of domain experts with frontier AI labs, helping those labs generate the human data they need to train and evaluate leading models. It also runs large batches of automated grading jobs to evaluate models for labs and enterprises.
> 
> Demand arrives in bursts that can push model traffic to peak capacity for days, even as individual evaluation or labeling jobs carry 24-hour deadlines. With so little time to deliver, requests waiting on a provider’s rate limits can put a client’s deadline at risk.
> 
> Mercor’s business teams also need applications tailored to each engagement, giving experts a way to see their tasks and progress without waiting for changes to the core platform.
> 
> For Aaron Brown, Mercor’s Head of Security, enabling more people to build means making it easier to give them the access they need and keep track of how they use it.

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