A recent flagship model in the Claude family, positioned as Anthropic's most powerful tier, built for the most demanding reasoning, agentic, and knowledge tasks.
Specifications
- Provider
- Anthropic
- Type
- Vendor / proprietary
- Modality
- Text + Vision
- Category
- Reasoning model
- Context window
- 1M
- Released
- June 9, 2026
Best for
- ▸Hardest reasoning and analysis problems
- ▸Long-horizon agentic and coding work
- ▸Large-context document and codebase tasks
- ▸Knowledge work requiring deep deliberation
- ▸Multi-agent and tool-orchestration systems
Capabilities
Vision inputFunction calling / toolsAdaptive thinkingAdjustable effort levels1M contextStructured outputs
Performance & positioning
Positioned as the most capable model in the Claude lineup, sitting above the Opus tier for the most intelligence-demanding workloads.
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