Claude Opus 4
by Anthropic
Claude Opus 4 is benchmarked as the world’s best coding model, at time of release, bringing sustained performance on complex, long-running tasks and agent workflows. It sets new be
Models
Claude Opus 4
Added 10 July 2026
Overview
Claude Opus 4 is benchmarked as the world’s best coding model, at time of release, bringing sustained performance on complex, long-running tasks and agent workflows. It sets new benchmarks in...
Best for
Best for
Hard reasoning, architecture reviews, and high-stakes agent plans
Use cases
- architecture reviews
- complex debugging
- strategy memos
- eval judges
How to use / API access
Call via OpenRouter with model id `anthropic/claude-opus-4`.
- openrouter ·
anthropic/claude-opus-4Docs
OpenRouter id: anthropic/claude-opus-4
Benchmarks
- Design Arena 3d (other): 1167 elo · #60
- Design Arena codecategories (other): 1176 elo · #69
- Design Arena dataviz (other): 1160 elo · #71
- Design Arena gamedev (other): 1194 elo · #55
Enterprise DNA angle
Use Opus where judgment matters; Omni routes cheaper models for bulk work and reserves Opus for the hard steps.
Notes
Claude Opus 4 is listed in the EDNA Models directory from the OpenRouter catalogue.
Pros
- Top-tier reasoning for hard planning and analysis
- Strong coding on complex multi-step tasks
- Vision support for screenshots and docs
Cons
- Higher $/Mtoken than Sonnet or open models
- Overkill for simple classification or extraction
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