# GPT-4.1

id: ent_gpt-4-1  
wikidata: Q133893610  
kind: product  
timeline: /timelines/gpt-4-1.md  
page: /record/gpt-4-1  
same_as: https://asof.is/record/gpt-4-1 (how to cite the id: /identifiers.md)  

API model with 1M-token context, strong instruction following

## 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 release date](/record/gpt-4-1/model_release.md)
- [GPT-4.1 deprecation](/record/gpt-4-1/deprecated.md)
- [GPT-4.1 context window](/record/gpt-4-1/context_window.md)

## Current state

What the record asserts: claims that held, valid by their sources or primary-sourced at confidence 0.7 or more. Unverified, disputed, retracted and review-marked claims are listed below, labelled, not here.

- [GPT-4.1](/record/gpt-4-1.md) | context_window | up to 1M tokens | valid 2025-04-14 to present | conf 0.95 | valid | [clm_A68FBD12445C](/claim/clm_A68FBD12445C.md)
  sources: https://developers.openai.com/api/docs/changelog#2025-04-14

## All claims

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 Superseded claims stay visible.

- [GPT-4.1](/record/gpt-4-1.md) | deprecated | gpt-4.1-2025-04-14 | valid 2026-10-14 to present | conf 0.95 | valid | [clm_CD2CDDC451D7](/claim/clm_CD2CDDC451D7.md)
  sources: https://platform.openai.com/docs/deprecations
- [GPT-4.1](/record/gpt-4-1.md) | context_window | up to 1M tokens | valid 2025-04-14 to present | conf 0.95 | valid | [clm_A68FBD12445C](/claim/clm_A68FBD12445C.md)
  sources: https://developers.openai.com/api/docs/changelog#2025-04-14

## 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](/record/gpt-4-1.md) | model_release | gpt-4.1 | valid 2025-04-14 to present | conf 0.95 | valid | [clm_0F5975E568EB](/claim/clm_0F5975E568EB.md)
  sources: https://developers.openai.com/api/docs/changelog#2025-04-14

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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.