Claude Sonnet 5
by Anthropic
Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reaso
Models
Claude Sonnet 5
Added 10 July 2026
Overview
Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...
How to use / API access
Call via OpenRouter with model id `anthropic/claude-sonnet-5`.
- openrouter ·
anthropic/claude-sonnet-5Docs
OpenRouter id: anthropic/claude-sonnet-5
Benchmarks
- Intelligence Index (artificial-analysis): 38.2 index
- Coding Index (artificial-analysis): 71.5 index
- Agentic Index (artificial-analysis): 43.6 index
- Design Arena agenticgamedev (other): 1226 elo · #7
- Design Arena androidnative (other): 1238 elo · #9
- Design Arena fullstack (other): 1249 elo · #9
- Design Arena godotgamedev (other): 1225 elo · #13
Notes
Claude Sonnet 5 is listed in the EDNA Models directory from the OpenRouter catalogue.
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