AsOf

Anthropic · featurenone option

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
2025-02-27
Valid until
still holds
Published
2025-02-27
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

“We’ve added support for a none option to the tool_choice parameter in the Messages API that prevents Claude from calling any tools.”— what the page says, read 2026-11-14

Cite this claim

Each form names the value, its as-of date (2025-02-27), 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 The URL never changes: a superseded claim stays at the same address.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. "Anthropic feature added: none option", as of 2025-02-27. Claim clm_89B22687ECF8, https://asof.is/claim/clm_89B22687ECF8, accessed 2026-11-14. Source: https://platform.claude.com/docs/en/release-notes/overview#2025-02-27.
APA
AsOf. (2025). Anthropic feature added: none option (as of 2025-02-27) [Record clm_89B22687ECF8]. Retrieved November 14, 2026, from https://asof.is/claim/clm_89B22687ECF8 (source: https://platform.claude.com/docs/en/release-notes/overview#2025-02-27)
BibTeX
@misc{asof_clm_89B22687ECF8,
  author = {AsOf},
  title = {Anthropic feature added: none option},
  year = {2025},
  howpublished = {\url{https://asof.is/claim/clm_89B22687ECF8}},
  note = {Claim clm\_89B22687ECF8, as of 2025-02-27; source: https://platform.claude.com/docs/en/release-notes/overview\#2025-02-27},
  urldate = {2026-11-14}
}

On the record

/claim/clm_89B22687ECF8.md/v1/claims/clm_89B22687ECF8submit a correction