FEATUREDmodelsanthropic.com
Anthropic releases Claude Sonnet 5.5 — 30% faster, up to 30% cheaper per task, 1M context
The second model in the Claude 5.5 family: a clear upgrade over Sonnet 5 at $2/$10 per MTok, 1M-token native context and 128K output. Thinking-off users must move to the new between_tools setting.