# Grok 4

id: ent_grok-4  
kind: product  
timeline: /timelines/grok-4.md  
page: /record/grok-4  
same_as: https://asof.is/record/grok-4 (how to cite the id: /identifiers.md)  

flagship model by xAI with native tool use (Jul 2025)

## 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.

- [Grok 4 release date](/record/grok-4/model_release.md)
- [Grok 4 retirement](/record/grok-4/retired.md)
- [Grok 4 context window](/record/grok-4/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.

- [Grok 4](/record/grok-4.md) | context_window | 256,000 | valid 2025-07-09 to present | conf 0.95 | valid | [clm_7B25253F8DC7](/claim/clm_7B25253F8DC7.md)
  sources: https://x.ai/news/grok-4

## All claims

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 Superseded claims stay visible.

- [Grok 4](/record/grok-4.md) | retired | grok-4-0709 | valid 2026-05-15 to present | conf 0.95 | valid | [clm_A31976FAF75D](/claim/clm_A31976FAF75D.md)
  sources: https://docs.x.ai/developers/migration/may-15-retirement
- [Grok 4](/record/grok-4.md) | context_window | 256,000 | valid 2025-07-09 to present | conf 0.95 | valid | [clm_7B25253F8DC7](/claim/clm_7B25253F8DC7.md)
  sources: https://x.ai/news/grok-4

## 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.

- [Grok 4](/record/grok-4.md) | model_release | Grok 4 | valid 2025-07-09 to present | conf 0.95 | valid | [clm_D83F8B7D523E](/claim/clm_D83F8B7D523E.md)
  sources: https://x.ai/news/grok-4

---

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