xAI: Grok 4.1 Fast
Newgrok-4.1-fast
2M context
$0.20 / $0.50 per M tokens
Non-reasoning variant of Grok 4.1 optimized for instant responses with 2M context and agentic tool calling.
Model Overview
Non-reasoning variant of Grok 4.1 optimized for instant responses with 2M context and agentic tool calling.
Pricing
Input
$0.20
per million tokens
Output
$0.50
per million tokens
Supported Modalities
text
image
code
Model ID
grok-4.1-fastContext Window
2M tokens
Provider
xAI
Added
February 15, 2026
Input Modalities
text, image, code
Data Policy
Data not used for training
Data retained for 30 days