Claude Opus 4.8 (Fast)
anthropic/claude-4.8-opus-fast-20260528
Claude Opus 4.8 (Fast) by Anthropic processes text, image, and file inputs and generates text output. It has a context length of 1,000,000 tokens, supports tool usage and reasoning, and is priced at 10 per M input tokens and 50 per M output tokens.
- tool use
- structured outputs
- reasoning
At a glance
provideranthropic
releasedMay 27, 2026
context1M
input / M$10
Specifications
What the API gives you
- Context window
- 1M tokens
- Max output
- 128K tokens
- Input price
- $10 / 1M tokens
- Output price
- $50 / 1M tokens
- Cache read
- $1 / 1M tokens
- Modalities
- text, image, file → text
- Knowledge cutoff
- —
- Released
- May 27, 2026
Recommendation coverage
Where this model appears
Not currently included in a published recommendation. This means the available task-specific evidence did not support a ranking yet—not that the model was reviewed and rejected.
Benchmarks
No independent benchmark results are linked to this model yet. We keep it visible while withholding quality claims until usable results arrive.
Catalog data via OpenRouter and models.dev. Last checked within the past 6 hours.