Anthropic Claude claude-sonnet-4-5-20250929 — lifecycle date eolFrom is now 2026-11-30
For Anthropic Claude claude-sonnet-4-5-20250929, product is claude; field changed is eolFrom; previous value is 2026-09-29; new value is 2026-11-30; detected is 2026-10-05, recorded from its source on 2026-10-05; source re-checked 2026-10-26.
- Product
- claude verified
- Product label
- Anthropic Claude
- Release cycle
- claude-sonnet-4-5-20250929 verified
- Field changed
- eolFrom verified
- Previous value
- 2026-09-29 our reading
- New value
- 2026-11-30 verified
- Detected
- 2026-10-05 our reading
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
{"name":"claude-sonnet-4-5-20250929","codename":null,"label":"Claude Sonnet 4.5","releaseDate":"2025-09-29","isLts":false,"ltsFrom":null,"isEoas":true,"eoasFrom":"2026-09-30","isEol":false,"eolFrom":"2026-11-30"
— endoflife.date, retrieved 2026-10-05
Source
- endoflife.datehttps://endoflife.date/api/v1/products/claude
This one changes, and we watch it.Software end-of-life date changes — which dates moved and what they were before is re-read on a schedule and every change is dated. Subscribe: Atom feed · JSON · what has changed so far.