Claude Opus 4.8
by Anthropic
Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, with reasoning support and a 1M
Models
Claude Opus 4.8
Added 10 July 2026
Overview
Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token...
How to use / API access
Call via OpenRouter with model id `anthropic/claude-opus-4.8`.
- openrouter ·
anthropic/claude-opus-4.8Docs
OpenRouter id: anthropic/claude-opus-4.8
Benchmarks
- Intelligence Index (artificial-analysis) : 55.7 index
- Coding Index (artificial-analysis) : 74.3 index
- Agentic Index (artificial-analysis) : 47.2 index
- Design Arena agenticgamedev (other) : 1264 elo · #2
- Design Arena agentichtmlslides (other) : 1227 elo · #4
- Design Arena agenticslides (other) : 1294 elo · #2
- Design Arena agenticslides(html) (other) : 1230 elo · #4
Notes
Claude Opus 4.8 is listed in the EDNA Models directory from the OpenRouter catalogue.
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