# GPT-4 context window

lineage: /models/gpt.md  

entity: /record/gpt-4.md  
predicate: context_window  
page: /record/gpt-4/context_window  
as_of: 2026-11-04  

As of November 4, 2026, GPT-4's context window on the AsOf record is 128 K context, dated November 6, 2023, from a primary source (openai.com). The record holds 1 claim on GPT-4's context window, 1 still open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.

## Current context window

What the record asserts on 2026-11-04.

- [GPT-4](/record/gpt-4.md) | context_window | 128K context | valid 2023-11-06 to present | conf 0.50 | valid | [clm_02DB0BD29908](/claim/clm_02DB0BD29908.md)
  sources: https://openai.com/index/new-models-and-developer-products-announced-at-devday

## Every dated value

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 Superseded claims stay visible.

- [GPT-4](/record/gpt-4.md) | context_window | 128K context | valid 2023-11-06 to present | conf 0.50 | valid | [clm_02DB0BD29908](/claim/clm_02DB0BD29908.md)
  sources: https://openai.com/index/new-models-and-developer-products-announced-at-devday

## Questions this record answers

### What is GPT-4's current context window?

128 K context, dated November 6, 2023, from a primary source (openai.com). The record asserts this claim as of November 4, 2026 (status valid, confidence 0.50).


## Get this data

- JSON: /v1/entities/gpt-4/context_window (this fact) · /v1/entities/gpt-4?predicates=context_window (with the entity's coverage; add as_of=YYYY-MM-DD for a date)
- MCP: timeline(entity: "gpt-4", predicates: ["context_window"]) for every dated value · fetch(id: "/record/gpt-4/context_window.md") for this page
- Entity twin: /record/gpt-4.md · timeline: /timelines/gpt-4.md

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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.