AsOf

Claude 3 Sonnet · retiredClaude Sonnet 3

valid: Two independent sources agree, or a primary source states it: the record asserts this claim, unless it is a post, is marked for review or carries a confidence below 0.5.asserted

What the statuses mean

Valid from
2025-07-21
Valid until
still holds
Published
2025-07-21
Recorded by AsOf
2026-11-14
Checked
2026-11-14 · its source page states the value and the date, as read by an AI model
Confidence
0.70

Sources

“July 21, 2025 We’ve retired the Claude 2.0, Claude 2.1, and Claude Sonnet 3 models. All requests to these models will now return an error.”— what the page says, read 2026-11-14

Cite this claim

Each form names the value, its as-of date (2025-07-21), the day you read it (2026-11-14), 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 The URL never changes: a superseded claim stays at the same address.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. "Claude 3 Sonnet retired: Claude Sonnet 3", as of 2025-07-21. Claim clm_0E7DC5273118, https://asof.is/claim/clm_0E7DC5273118, accessed 2026-11-14. Source: https://platform.claude.com/docs/en/release-notes/overview#2025-07-21.
APA
AsOf. (2025). Claude 3 Sonnet retired: Claude Sonnet 3 (as of 2025-07-21) [Record clm_0E7DC5273118]. Retrieved November 14, 2026, from https://asof.is/claim/clm_0E7DC5273118 (source: https://platform.claude.com/docs/en/release-notes/overview#2025-07-21)
BibTeX
@misc{asof_clm_0E7DC5273118,
  author = {AsOf},
  title = {Claude 3 Sonnet retired: Claude Sonnet 3},
  year = {2025},
  howpublished = {\url{https://asof.is/claim/clm_0E7DC5273118}},
  note = {Claim clm\_0E7DC5273118, as of 2025-07-21; source: https://platform.claude.com/docs/en/release-notes/overview\#2025-07-21},
  urldate = {2026-11-14}
}

On the record

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