# clm_842D6855DED0

subject: GPT-4o (/record/gpt-4o.md)  
predicate: model_release  
value: GPT-4o  
valid_from: 2024-05-13  
valid_to: null  
published: 2024-05-13  
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  

> May 13 Update Released GPT-4o in the API.

What https://developers.openai.com/api/docs/changelog#2024-05-13 says, word for word.

## Sources

- https://developers.openai.com/api/docs/changelog#2024-05-13 (primary, OpenAI (API changelog), published 2024-05-13)

---

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