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Anthropic·Sep 22, 2026·v5.5·paid
Claude Opus 5.5
Claude Opus 5.5 is a high-performance AI model optimized for agentic coding, complex knowledge work, and large-scale data analysis. It delivers significant improvements in efficiency and communication, offering a 40% reduction in operating costs compared to its predecessor, Claude Opus 5.
featured on blogAI ModelAgentic CodingEnterprise AILLM
overview
Claude Opus 5.5 is a high-performance AI model optimized for agentic coding, complex knowledge work, and large-scale data analysis. It delivers significant improvements in efficiency and communication, offering a 40% reduction in operating costs compared to its predecessor, Claude Opus 5.
key features
- 01Leading performance in agentic coding and computer use
- 0240% lower operating costs compared to Claude Opus 5
- 03Enhanced natural communication and writing style
- 04Advanced safety features including an action-screening classifier
- 05Improved resistance to prompt injection and unauthorized boundary-crossing
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