Claude Opus 5
by Anthropic
Claude Opus 5 is Anthropic’s flagship model for demanding reasoning, coding, and long-horizon agentic work. It is particularly strong at end-to-end software tasks, code review and
Models
Claude Opus 5
Added 3 Sept 2026
Overview
Claude Opus 5 is Anthropic’s flagship model for demanding reasoning, coding, and long-horizon agentic work. It is particularly strong at end-to-end software tasks, code review and bug finding, visual analysis...
How to use / API access
Call via OpenRouter with model id `anthropic/claude-opus-5`.
- openrouter ·
anthropic/claude-opus-5Docs
OpenRouter id: anthropic/claude-opus-5
Benchmarks
- Intelligence Index (artificial-analysis) : 54.1 index
- Coding Index (artificial-analysis) : 78 index
- Agentic Index (artificial-analysis) : 56.4 index
- Design Arena agenticgamedev (other) : 1266 elo · #2
- Design Arena androidnative (other) : 1271 elo · #3
- Design Arena fullstack (other) : 1344 elo · #1
- Design Arena mobileapps (other) : 1348 elo · #1
Notes
Claude Opus 5 is listed in the EDNA Models directory from the OpenRouter catalogue.
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