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grok-4-fast-reasoning
grok-4-fast-reasoning
Modalities
Input
textimage
Output
text
Pricing
Cost per 1 million tokens
Input
$0.216
Output
$0.54
Model Specs
Context Window
2,000,000Max Output
2,000,000Release Date
2026-01Knowledge Cutoff
Capabilities
Reasoning
Tool Calling
Vision
Last Updated: 2026-01
Provider: