Scan to join WeChat groupClaude Opus 5.5
Claude Opus 5.5 for complex coding, computer use, knowledge work and long-running agents
Released on September 22, 2026, Claude Opus 5.5 uses API model ID claude-opus-5-5 and costs $4 per million input tokens, $20 per million output tokens and $0.20 per million cache-read tokens.
starsCapabilities
paymentsContext and pricing
descriptionOverview
Overview
Claude Opus 5.5 is part of the official Anthropic Claude model family, with model ID claude-opus-5-5. Claude models are commonly evaluated for long-context understanding, careful writing, coding assistance and safety-aware enterprise workflows.
Best for
Use Claude Opus 5.5 when your product needs document analysis, code review, enterprise Q&A, agent workflows or high-quality writing. Test long-context reliability, refusal boundaries, tool behavior, cost and latency before production.
Official pricing and availability
Claude Opus 5.5 is available through the Claude Platform, AWS, Google Cloud and Microsoft Azure. Standard pricing is $4 per million input tokens, $5 per million cache-write tokens, $0.20 per million cache-read tokens and $20 per million output tokens. Fast mode costs $8 input and $40 output per million tokens.
lightbulbUse cases
- Long-document analysis and summarization
- Code review and rewriting
- Enterprise knowledge Q&A
- Agent and tool workflows
thumb_upStrengths
- Strong fit for long-context tasks
- Careful writing and analysis style
- Useful for enterprise safety requirements
- Easy to tier against Haiku, Sonnet and Opus
infoLimitations
- Cost and latency vary by tier
- Tool workflows and long-running tasks need testing
- Some workloads may be better on a smaller model
- Capabilities depend on Anthropic documentation