Anthropic launches Claude Sonnet 5.5: 30% faster, 30% cheaper, demoed fixing a Claude Code bug

Claude Sonnet 5.5 发布，作者演示其修复 Claude Code 中的 bug

Anthropic released Claude Sonnet 5.5, the second model in the Claude 5.5 family. It's over 30% faster than Sonnet 5 and up to 30% cheaper on most tasks. Boris Cherny posted a video showing Sonnet 5.5 fixing a bug inside Claude Code. The post doesn't disclose benchmark scores or exact pricing.

Why it matters: Anthropic drops Sonnet 5.5 with 30%+ speed gain and up to 30% cost reduction, plus a live Claude Code bug-fix demo from Boris Cherny. Substantive Anthropic update with concrete numbers and a first-person experiment — hits all three HKR axes. Not scoring higher because benchmar...