# Vercel — Vercel Functions are now faster—and powered by Rust

- Company: Vercel (vercel.com)
- Announced: 2024-05-03T13:00:00+00:00
- Category: capability-change
- Coverage: not counted
- Announcement: yes
- Group: announcements
- Source: https://vercel.com/blog/vercel-functions-are-now-faster-and-powered-by-rust
- Record: https://forck.live/items/20984-vercel-functions-are-now-faster-and-powered-by-rust
- Subject: v0 / AI SDK / AI Gateway

Vercel has migrated its serverless Functions runtime to Rust, resulting in faster cold starts and lower costs. The company reports 30% faster cold starts for smaller workloads and 80ms (average) and 500ms (p99) faster execution for larger workloads. The improvements are rolling out gradually to all customers with no action required.

## Evidence

Verbatim from https://vercel.com/blog/vercel-functions-are-now-faster-and-powered-by-rust:

> We've already served billions of invocations on our new system, which has faster executions and slightly lower cost. With our migration to Rust, we've seen: 30% faster cold starts for smaller workloads 80ms faster (average) and 500ms faster (p99) for larger workloads

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