Claude Sonnet 5.5 and Haiku 5.5: The Complete 5.5 Family and Its Pricing Ladder (2026)
Anthropic finished the Claude 5.5 family. Sonnet 5.5 lands at $2/$10 with cache reads halved to $0.10, and Haiku 5.5 arrives at $0.10/$0.50 with a 1M-token context window and — for the first time in a Haiku — an effort dial.