# Vercel — Introducing bytecode caching for Vercel Functions

- Company: Vercel (vercel.com)
- Announced: 2024-06-03T13:00:00+00:00
- Category: capability-change
- Coverage: not counted
- Announcement: yes
- Group: announcements
- Source: https://vercel.com/blog/introducing-bytecode-caching-for-vercel-functions
- Record: https://forck.live/items/20976-introducing-bytecode-caching-for-vercel-functions
- Subject: v0 / AI SDK / AI Gateway

Vercel announced an experimental bytecode caching feature for Vercel Functions that reduces cold start latency by up to 27% for large applications. The feature caches compiled bytecode from the first execution and reuses it on subsequent cold starts, eliminating the compilation step. It is available for Node.js 20 and frameworks that compile to CommonJS, with an opt-in environment variable.

## Evidence

Verbatim from https://vercel.com/blog/introducing-bytecode-caching-for-vercel-functions:

> Today, we are announcing a new experimental feature to further reduce startup latency for large applications, resulting in up to 27% faster cold starts .

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