Anthropic releases Claude Sonnet 5.5, over 30% faster than Sonnet 5

Anthropic 发布 Claude Sonnet 5.5，速度比 Sonnet 5 快逾 30%

Anthropic launched Claude Sonnet 5.5, claiming over 30% speed gains and clearer writing for fast-turnaround tasks like bug fixes, docs, and slide decks. Opus 5.5 targets complex judgment work, and Haiku 5.5 is coming in a few weeks. The post doesn't disclose pricing or latency numbers.

Why it matters: Anthropic model line refresh with a concrete 30% speed claim for Sonnet 5.5 and clear product-line differentiation. Held below 85 because the post doesn't disclose pricing, latency benchmarks, or the baseline for the 30% figure.