Anthropic Claude claude-mythos-5-1 — lifecycle date eolFrom is now 2027-09-01
For Anthropic Claude claude-mythos-5-1, product is claude; field changed is eolFrom; new value is 2027-09-01; detected is 2026-09-21, recorded from its source on 2026-09-21; source re-checked 2026-10-26.
- Product
- claude verified
- Product label
- Anthropic Claude
- Release cycle
- claude-mythos-5-1 verified
- Field changed
- eolFrom verified
- New value
- 2027-09-01 verified
- Detected
- 2026-09-21 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-mythos-5-1","codename":null,"label":"Claude Mythos 5.1","releaseDate":"2026-09-01","isLts":false,"ltsFrom":null,"isEoas":false,"eoasFrom":null,"isEol":false,"eolFrom":"2027-09-01"
— endoflife.date, retrieved 2026-09-21
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.