# clm_66F3174DBF53

subject: OpenAI o1 (/record/openai-o1.md)  
predicate: model_release  
value: o1  
valid_from: 2024-12-17  
valid_to: null  
published: 2024-12-17  
recorded: 2026-11-04  
confidence: 0.95  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-04  
checked: 2026-11-04 · its source page states the value and the date  

> Dec 17 Feature o1 gpt-4o gpt-4o-mini v1/fine_tuning v1/chat/completions v1/realtime Added new models for o1

What https://developers.openai.com/api/docs/changelog#2024-12-17 says, word for word.

## Sources

- https://developers.openai.com/api/docs/changelog#2024-12-17 (primary, OpenAI (API changelog), published 2024-12-17)

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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.