Claude Sonnet 5.5 xHigh Debuts Third on Code Arena

Claude Sonnet 5.5 with xHigh reasoning entered LMArena's Code Arena: WebDev leaderboard at third place with 1786 points, just 2 points behind GPT-6 Astra.

2026-10-02 ~ 2026-10-02 · 2 related posts

• Claude Sonnet 5.5 xHigh hits #3 in Code Arena WebDev, 2 pts behind GPT-6 Astra at 80% of the price — arena · 2026-10-02

1 near-duplicate retellings: arena