# clm_A676547EE8D5

subject: OpenAI (/record/openai.md)  
predicate: released  
value: GPT-4.1  
valid_from: 2025-04-14  
valid_to: null  
published: no source on record carries a date  
recorded: 2026-10-30  
confidence: 0.95  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-10-31  
checked: 2026-10-30 · its source page states the value and the date  

> ### Apr 14 Feature · Model: gpt-4.1 · Model: gpt-4.1-mini · Model: gpt-4.1-nano · API: v1/responses · API: v1/chat/completions · API: v1/fine_tuning Added [`gpt-4.1`](https://developers.openai.com/api/docs/models/gpt-4.1)

What https://developers.openai.com/api/docs/changelog.md says, word for word.

## Sources

- https://developers.openai.com/api/docs/changelog.md (primary)
- https://www.wikidata.org/wiki/Q133893610 (secondary, Wikidata)

---

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