Overview
A 2M-context fast agent model for real-world tool use and deep research, offered in reasoning and non-reasoning variants.
Grok 4.1 Fast
A 2M-context fast agent model for real-world tool use and deep research, offered in reasoning and non-reasoning variants.
MODEL NUMBER087
- Release date
- 2025-11-19
- Organization
- SpaceXAI
- Family
- Grok
01
Specifications
Only published specifications are shown.
02
Overview
PreviousGrok 4.1— · — ctx
CurrentGrok 4.1 Fast— · 2M ctx
New capabilities Tool use Deep search Code execution Long context
04
Architecture & capabilities
Key capabilities
Tool useDeep searchCode executionLong context
05
Release history
Grok 4.1 Fast and the Agent Tools API launched.
View source06
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