AsOf

OpenAI · featureextended prompt caching

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

What the statuses mean

Valid from
2025-11-13
Valid until
still holds
Published
2025-11-13
Recorded by AsOf
2026-11-03
Checked
2026-11-04 · its source page states the value and the date (its publisher's feed entry for the page)
Confidence
0.70

Sources

“GPT-5.1 is now available in the API, bringing faster adaptive reasoning, extended prompt caching, improved coding performance, and new apply_patch and shell tools”— 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 (2025-11-13), 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 The URL never changes: a superseded claim stays at the same address.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 feature added: extended prompt caching", as of 2025-11-13. Claim clm_E1B5C1279BA1, https://asof.is/claim/clm_E1B5C1279BA1, accessed 2026-11-08. Source: https://openai.com/index/gpt-5-1-for-developers.
APA
AsOf. (2025). OpenAI feature added: extended prompt caching (as of 2025-11-13) [Record clm_E1B5C1279BA1]. Retrieved November 8, 2026, from https://asof.is/claim/clm_E1B5C1279BA1 (source: https://openai.com/index/gpt-5-1-for-developers)
BibTeX
@misc{asof_clm_E1B5C1279BA1,
  author = {AsOf},
  title = {OpenAI feature added: extended prompt caching},
  year = {2025},
  howpublished = {\url{https://asof.is/claim/clm_E1B5C1279BA1}},
  note = {Claim clm\_E1B5C1279BA1, as of 2025-11-13; source: https://openai.com/index/gpt-5-1-for-developers},
  urldate = {2026-11-08}
}

On the record

/claim/clm_E1B5C1279BA1.md/v1/claims/clm_E1B5C1279BA1submit a correction