Vercel Open-Sources fx, a 6MB CLI Coding Agent with 10-Microsecond Cold Start

Vercel Labs has open-sourced fx, a lightweight CLI coding agent written in Zig, featuring a 6MB binary and a 10-microsecond cold start, emphasizing speed and lightness.

2026-08-21 ~ 2026-08-21 · 2 related posts

• CLI coding agent fx update: 6MB binary, WASM support, instant startup — evilrabbit_ · 2026-08-21
• Vercel open-sources fx, a blazing fast native coding agent — evilrabbit_ · 2026-08-21