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Claude Opus 4.1

Model
AnthropicFamily Claude 4legacy

An upgraded Opus 4 model with stronger agentic tasks, coding, and real-world reasoning.

Released
Aug 5, 2025
Context window
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Modality
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Open source
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API available
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Releases
1

Releases

1
Aug 5, 2025Claude Opus 4.1 releasedClaude Opus 4.1

Anthropic released Claude Opus 4.1 with improvements to agentic tasks, coding, and reasoning.

Anthropic Model releaseAnthropicClaude Opus 4.1