Claude Opus 4.1

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claude-opus-4.1-20250805

Anthropic|Created Aug 5, 2025|200k context

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Claude Opus 4.1 is Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves high scores on SWE-bench Verified and excels in multi-file code refactoring, debugging precision, and detail-oriented reasoning. The model supports extended thinking up to 64K tokens and is optimized for research, data analysis, and tool-assisted workflows.

Overview Specifications Activity Performance Uptime Examples

Pricing-50%

Pay-as-you-go rates for this model. More details can be found here.

Input Tokens (1M)

$10.00

Output Tokens (1M)

$50.00

Capabilities

Claude Opus 4.1

Input Tokens (1M)

Output Tokens (1M)

Input Modalities

Claude Opus 4.1

Input Tokens (1M)

Output Tokens (1M)

Input Modalities

Output Modalities