Claude Opus 4.6
by Anthropic
Opus 4.6 is Anthropic’s strongest model for coding and long-running professional tasks. It is built for agents that operate across entire workflows rather than single prompts, maki
Models
Claude Opus 4.6
Added 10 July 2026
Overview
Opus 4.6 is Anthropic’s strongest model for coding and long-running professional tasks. It is built for agents that operate across entire workflows rather than single prompts, making it especially effective...
Best for
Best for
Highest-stakes reasoning, architecture, and agent planning
Use cases
- architecture reviews
- eval judges
- complex debugging
- strategy memos
How to use / API access
Call via OpenRouter with model id `anthropic/claude-opus-4.6`.
- openrouter ·
anthropic/claude-opus-4.6Docs
OpenRouter id: anthropic/claude-opus-4.6
Benchmarks
- Intelligence Index (artificial-analysis): 31.9 index
- Design Arena agenticgamedev (other): 1214 elo · #8
- Design Arena androidnative (other): 1216 elo · #12
- Design Arena fullstack (other): 1220 elo · #13
- Design Arena mobileapps (other): 1207 elo · #15
Enterprise DNA angle
Omni routes Opus only onto gated steps so spend tracks judgment, not volume.
Notes
Claude Opus 4.6 is listed in the EDNA Models directory from the OpenRouter catalogue.
Pros
- Latest Opus-class depth for hard plans and reviews
- Strong coding on complex multi-file work
- Large context for architecture-scale tasks
Cons
- Premium $/Mtoken — reserve for high-stakes steps
- Closed model
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