Calendarby GlyphTech · Retirements
Anthropic retires We announced the deprecation of the Claude Sonnet 4.5 model
Mon, November 30, 2026
in 21 daysUnverified
Anthropic ends support for this model.
Also on Nov 30, 2026
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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
- 2026-10-06: added to 2026-11-30