Anthropic: Claude Opus 4.1
anthropic/claude-opus-4.1
PaidTool callingVision inputReasoning
Price Published
- Input
- $15.00 per million tokens
- Output
- $75.00 per million tokens
Optional features and fallback routes can cost extra. Confirm current terms with the provider.
Specifications Published
- Context window
- 200,000 tokens
- Max output
- 32,000 tokens
- Tool calling
- Supported
- Vision input
- Supported
- Reasoning
- Supported
- Knowledge cutoff
- Jan 31, 2025
- Listed since
- Aug 5, 2025
Measured by the Club Signed cheapoS reports
Not yet observed No signed request reports for this exact route yet. Missing reports aren't a failure or a zero.
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anthropic/claude-opus-4.1as a worker or reviewer, and start with a small task you can check.
About this model OpenRouter description
Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified and shows notable gains...
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Catalog data from the OpenRouter model catalog, retrieved Sep 29, 2026, 12:37 PM UTC. A listing isn't a live availability check.