Anthropic launches Claude Sonnet 5.5: over 30% faster and up to 30% cheaper than Sonnet 5

Anthropic 发布 Claude Sonnet 5.5：比 Sonnet 5 快超 30% 且成本最多降 30%

Anthropic released Claude Sonnet 5.5, the second model in the Claude 5.5 family. It runs over 30% faster than Sonnet 5 and cuts costs by up to 30% on most workloads. The post does not disclose benchmarks, pricing details, or availability dates.

Why it matters: A new Anthropic model is a strong signal, and the 30% speed/cost numbers are direct enough to matter to Claude users. But the post only has the official claim — no benchmarks, pricing, or launch date — so the real improvement and value are unverified, capping the score.