# clm_57211E5CBE68

subject: Grok 4.1 Fast (/record/grok-4-1-fast.md)  
predicate: available_in  
value: Enterprise API  
valid_from: 2025-11-19  
valid_to: null  
published: 2025-11-19  
recorded: 2026-11-05  
confidence: 0.70  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-05  
cite: AsOf. "Grok 4.1 Fast available in: Enterprise API", as of 2025-11-19. Claim clm_57211E5CBE68, https://asof.is/claim/clm_57211E5CBE68, accessed 2026-11-09. Source: https://docs.x.ai/docs/release-notes#2025-11-19.  
checked: 2026-11-05 · its source page states the value and the date  

> November 2025 Nov 19 Grok 4.1 Fast is available in Enterprise API You can now use Grok 4.1 Fast in the xAI Enterprise API .

What https://docs.x.ai/docs/release-notes#2025-11-19 says, word for word.

## Sources

- https://docs.x.ai/docs/release-notes#2025-11-19 (primary, xAI, published 2025-11-19)

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