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claude-opus-4.1

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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:$15 / 1M tokens
Output:$75 / 1M tokens
Context:200K tokens
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Category Rankings
academia#15
finance#19
programming#13
science#16

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include_reasoning
max_tokens
stop
temperature
012
tool_choice
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