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X-Ai/Grok-4-Fast-Reasoning
grok-4-fast-reasoning
Modalities
Input
textimageaudiovideo
Output
text
Pricing
Cost per 1 million tokens
Input
$0.24
Output
$0.6
Model Specs
Context Window
2,000,000Max Output
2,000,000Release Date
2025-12-18Knowledge Cutoff
Capabilities
Reasoning
Tool Calling
Vision
Last Updated: 2025-12-18
Provider: