# clm_2D8CA87C7078

subject: OpenAI (/record/openai.md)  
predicate: model_release  
value: gpt-4.1-nano  
valid_from: 2025-04-14  
valid_to: null  
published: 2025-04-14  
recorded: 2026-11-02  
confidence: 0.70  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-03  
checked: 2026-11-02 · its source page states the value and the date  

> Apr 14 Feature gpt-4.1 gpt-4.1-mini gpt-4.1-nano v1/responses v1/chat/completions v1/fine_tuning Added gpt-4.1 , gpt-4.1-mini , and gpt-4.1-nano models to the API.

What https://developers.openai.com/api/docs/changelog#2025-04-14 says, word for word.

## Sources

- https://developers.openai.com/api/docs/changelog#2025-04-14 (primary, OpenAI, published 2025-04-14)

---

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