# GPT-4.1 nano

id: ent_gpt-4-1-nano  
wikidata: Q134390865  
kind: product  
timeline: /timelines/gpt-4-1-nano.md  
page: /record/gpt-4-1-nano  
same_as: https://asof.is/record/gpt-4-1-nano (how to cite the id: /identifiers.md)  

smallest, cheapest GPT-4.1 model

## Fact pages

One page per fact: the current value with its sources, then every dated value and what replaced what. Fetch any of them as markdown.

- [GPT-4.1 nano release date](/record/gpt-4-1-nano/model_release.md)
- [GPT-4.1 nano deprecation](/record/gpt-4-1-nano/deprecated.md)
- [GPT-4.1 nano retirement](/record/gpt-4-1-nano/retired.md)

## All claims

One claim per line, newest first. Superseded claims stay visible.

- [GPT-4.1 nano](/record/gpt-4-1-nano.md) | retired | gpt-4.1-nano | valid 2026-10-23 to present | conf 0.95 | valid | [clm_4B8049CC7FF3](/claim/clm_4B8049CC7FF3.md)
  sources: https://platform.openai.com/docs/deprecations
- [GPT-4.1 nano](/record/gpt-4-1-nano.md) | deprecated | gpt-4.1-nano | valid 2026-04-22 to present | conf 0.95 | valid | [clm_EA9D392DF52E](/claim/clm_EA9D392DF52E.md)
  sources: https://platform.openai.com/docs/deprecations

## Posts and Hugging Face repos (1)

Dated items from the entity's own feeds, and the days its Hugging Face repositories were created, newest first.

- [GPT-4.1 nano](/record/gpt-4-1-nano.md) | model_release | gpt-4.1-nano | valid 2025-04-14 to present | conf 0.95 | valid | [clm_10E3D4744E71](/claim/clm_10E3D4744E71.md)
  sources: https://developers.openai.com/api/docs/changelog#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.