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Tech · Retirements

Anthropic retires claude-mythos-5-1

Wed, September 1, 2027 · Tentative

in 10 mo

Source

Claude API ends support for this model.

Also on Sep 1, 2027

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 2027-09-01