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Claude Opus 4.6
Model family: claude-opus-4
Claude Opus 4.6 — an earlier Opus 4 flagship at $5/$25 with 1M context, superseded by 4.7/4.8.
Identity
- Creator
- Anthropic
- Model family
- claude-opus-4
- Release date
- 2026-01-31
Technical specs
- Parameter count
- An earlier Opus 4 flagship ($5/$25, 1M context). Notable for cutting the flagship price ~3x versus the old Opus 4.1; superseded by 4.7 and 4.8.
- Context window
- 1M tokens
- Modalities
- Image Input
- Text
- Primary capabilities
- Chat
- Coding
- Function Calling
- Instruction Following
- Long Context
- Reasoning
- Tool Use
- Vision
License
- License
- Anthropic Commercial Terms of Service
- Commercial use
- Allowed
- Terms
- Modification ✗
- Redistribution ✗
- Attribution ✗
Access
- Openness
- Closed Api
- Access methods
- Api First Party
- Api Third Party
- Hosted Chat Ui
- Cost tier
- Paid Api
Sources
- llm
- closed-api
- frontier
- multimodal
- long-context
- us-based
- proprietary