Anthropic deprecated claude-opus-4-1-20250805 on June 5, 2026 and plans to retire it on August 5, 2026. New integrations should move to anthropic/claude-opus-4.8. If you still run Opus 4.1 traffic, use the Opus 4.1 to 4.8 migration guide.

Anthropic: 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 supports up to 200K of input context for long documents, codebases, and agent workflows.

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Claude 4.1 family

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We track 1 sibling across 1 provider. Launch window Aug 2025 - Aug 2025.

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Claude Opus 4.1

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Anthropic: Claude Opus 4.1