Claude Haiku 5.5 debuts at #30 in Code Arena WebDev

Claude Haiku 5.5 (High) debuted at #30 with 1587 points in Code Arena: WebDev, just outside the Pareto frontier. It matches GPT‑6 Luna's price at $0.10/$0.50 per 1M input/output tokens while scoring six points higher. Arena says it costs 90% less than Haiku 4.5 for +257 points, and 95% less than Sonnet 5.5 (High) for -128 points.