AsOf

OpenAI · releasedGPT-4.5

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

What the statuses mean

Valid from
2025-02-27
Valid until
still holds
Published
2025-02-27
Recorded by AsOf
2026-10-30
Checked
2026-11-04 · its source page states the value and the date (its publisher's feed entry for the page)
Confidence
0.95

Sources

“We’re releasing a research preview of OpenAI GPT‑4.5, our largest and most knowledgeable model yet”— what the publisher's feed entry for the page says, read 2026-11-04

Cite this claim

Each form names the value, its as-of date (2025-02-27), 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 The URL never changes: a superseded claim stays at the same address.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. "OpenAI released: GPT-4.5", as of 2025-02-27. Claim clm_CDBC44B4A869, https://asof.is/claim/clm_CDBC44B4A869, accessed 2026-11-08. Source: https://developers.openai.com/api/docs/changelog.md.
APA
AsOf. (2025). OpenAI released: GPT-4.5 (as of 2025-02-27) [Record clm_CDBC44B4A869]. Retrieved November 8, 2026, from https://asof.is/claim/clm_CDBC44B4A869 (source: https://developers.openai.com/api/docs/changelog.md)
BibTeX
@misc{asof_clm_CDBC44B4A869,
  author = {AsOf},
  title = {OpenAI released: GPT-4.5},
  year = {2025},
  howpublished = {\url{https://asof.is/claim/clm_CDBC44B4A869}},
  note = {Claim clm\_CDBC44B4A869, as of 2025-02-27; source: https://developers.openai.com/api/docs/changelog.md},
  urldate = {2026-11-08}
}

On the record

/claim/clm_CDBC44B4A869.md/v1/claims/clm_CDBC44B4A869submit a correction