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Tech · Retirements

Anthropic retires claude-opus-4-5-20251101

Tue, November 24, 2026 · Tentative

in 15 days

Source

Claude API ends support for this model.

Also on Nov 24, 2026

Source, method and history
Source
Anthropic
How we know
From the Sunsets API (sunsets.fru.dev), which reads each vendor's deprecation page.
Who
Anthropic
Recurs
one-off
More on Glyph
sunsets.fru.dev
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Changes
  • 2026-09-25: added to 2026-11-24