[Home \\ Anthropic · anthropic.com](<https://www.anthropic.com/claude-opus-5-5>)

# Introducing Claude Opus 5.5

Claude Opus 5.5 leads in agentic coding and knowledge work, and costs 40% less to run than Opus 5 on typical workloads.

1. [Releases · Anthropic](<https://curation.space/anthropic/releases>)