# clm_05CD9F62D3A5

subject: OpenAI o1 (/record/openai-o1.md)  
predicate: expanded  
value: o1  
valid_from: 2025-01-21  
valid_to: null  
published: 2025-01-21  
recorded: 2026-11-06  
confidence: 0.70  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-06  
cite: AsOf. "OpenAI o1 expanded: o1", as of 2025-01-21. Claim clm_05CD9F62D3A5, https://asof.is/claim/clm_05CD9F62D3A5, accessed 2026-11-08. Source: https://developers.openai.com/api/docs/changelog#2025-01-21.  
checked: 2026-11-06 · its source page states the value and the date  

> Jan 21 Feature o1 Expanded access to o1 model .

What https://developers.openai.com/api/docs/changelog#2025-01-21 says, word for word.

## Sources

- https://developers.openai.com/api/docs/changelog#2025-01-21 (primary, OpenAI, published 2025-01-21)

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AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.