Claude 5.5

Claude 5.5 is a generation of the Claude family of language models by Anthropic. It launched September 22, 2026 with Claude Opus 5.5, succeeding Claude 5. Anthropic has said Sonnet 5.5 and Haiku 5.5 “will follow in the coming weeks.”1

Footnotes

  1. Introducing Claude Opus 5.5 (Anthropic, Sep 22, 2026) ↩

Models

Claude Sonnet 5.52026-09-28Active1M$2 / $10
Claude Opus 5.52026-09-22Active1M$4 / $20
2 of 2 models