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GitHub✕already broken

claude-opus-4-1 shutdown

Shutdown date: 2026-08-05. No replacement named.

claude-opus-4-1 shutdown: from its source to your code

github.comquote checked
model retirementfrom claude-opus-4-1
2026-08-0593 days ago
Your code1 thing to find
Nemotron fixes

In its own wordsmatches the page ✓

A model can retire on different dates depending on where you call it. claude-opus-4-1 retired on Anthropic's API on August 5, 2026, but Amazon Bedrock serves it until January 8, 2027.

github.com/thossullivan/model-eol/blob/ma…from the provider's own sitechecked 2026-11-02#0f05931879

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model ID "claude-opus-4-1"

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read by nvidia/Nemotron-3-Ultra-550b-a55b · checked against the page · github-com-2026-08-05-claude-opus-4-1