Opus 5.5 Ports HAProxy C to Rust, 2.5 Hours Faster and 51% Cheaper

Tests by developer bcherny and the Every team show Opus 5.5 porting HAProxy from C to Rust about 2.5 hours faster and 51% cheaper than Fable 5.1, with both passing nearly all tests.

2026-09-23 ~ 2026-09-23 · 2 related posts

• Opus 5.5 ports HAProxy C to Rust in 9.5 hours, 51% cheaper than Fable 5.1 — bcherny · 2026-09-23
• Opus 5.5 Ports HAProxy 51% Cheaper Than Fable 5.1, Winning Back Codex Converts — every · 2026-09-23