AsOf

Anthropic · model releaseClaude Fable 5

valid: Two independent sources agree, or a primary source states it: the record asserts this claim.asserted

What the statuses mean

Valid from
2026-06-09
Valid until
still holds
Published
2026-06-09
Recorded by AsOf
2026-10-28
Checked
2026-10-31 · its source page states the value and the date
Confidence
0.70

Sources

“Today we’re launching Claude Fable 5 : a Mythos-class 1 model that we’ve made safe for general use.”— what the page says, read 2026-10-31

Cite this claim

Each form names the value, its as-of date (2026-06-09), the day you read it (2026-11-08), the claim's stable URL and id and its primary source. The URL never changes: a superseded claim stays at the same address.

Plain text
AsOf. "Anthropic model release: Claude Fable 5", as of 2026-06-09. Claim clm_93E1C526DF41, https://asof.is/claim/clm_93E1C526DF41, accessed 2026-11-08. Source: https://www.anthropic.com/news/claude-fable-5-mythos-5.
APA
AsOf. (2026). Anthropic model release: Claude Fable 5 (as of 2026-06-09) [Record clm_93E1C526DF41]. Retrieved November 8, 2026, from https://asof.is/claim/clm_93E1C526DF41 (source: https://www.anthropic.com/news/claude-fable-5-mythos-5)
BibTeX
@misc{asof_clm_93E1C526DF41,
  author = {AsOf},
  title = {Anthropic model release: Claude Fable 5},
  year = {2026},
  howpublished = {\url{https://asof.is/claim/clm_93E1C526DF41}},
  note = {Claim clm\_93E1C526DF41, as of 2026-06-09; source: https://www.anthropic.com/news/claude-fable-5-mythos-5},
  urldate = {2026-11-08}
}

On the record

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