Anthropic
Claude Opus 4.1
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 in multi-file code refactoring, debugging precision, and detail-oriented reasoning. The model supports extended thinking up to 64K tokens and is optimized for tasks involving research, data analysis, and tool-assisted reasoning.
- Input / 1M tokens
- $15.00
- Output / 1M tokens
- $75.00
- Context window
- 200K tokens
- Provider
- Anthropic
- Cached input / 1M
- $1.50
- Knowledge cutoff
- 2025-01-31
Performance
Median streaming throughput and first-token latency measured by Artificial Analysis.
- Output tokens / sec
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- Time to first token
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