PostOpus 5.5 is out.

Opus 5.5 is out. Anthropic said pace the frontier. Then they shipped a new top model two months after Opus 5. They say it matches Fable 5.1 on most work. 40% cheaper to run than Opus 5. $4 in, $20 out per million tokens. Cache reads down 60%. Faster too. Long jobs. Code migrations. Agents that sit on a repo overnight. Same company still gates the biology and cyber mode behind a verification program. The sharp knife comes with a lock. Sonnet 5.5 and Haiku 5.5 next. The speech was slow down. The product is speed up, cheaper.