Claude Opus 5 (Fast)
by OpenRouter · family claude-opus · listed Jul 2026RTV
Flagship Claude model for deep reasoning, coding, and long-horizon agents
Current rates USD per 1M tokens
Input$10.00
Output$50.00
Cache read$1.00
Cache write$12.50
Against the market
Input price vs. maker flagships ($/1M tokens)Output price vs. maker flagships ($/1M tokens)On the record
- Model id
anthropic/claude-opus-5-fast- Context window
- 1M tokens
- Max output
- 128K tokens
- Input modalities
- text, image, pdf
- Output modalities
- text
- Reasoning
- yes
- Tool calls
- yes
- Open weights
- no
- Knowledge cutoff
- May 2026
- Released
- 2026-07-24
- Last updated
- 2026-07-24
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