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Provider Docs
Grok 4 Fast (Reasoning)
grokAzure · grok-4-fast-reasoning
Capabilities
Tool CallYes
ReasoningYes
Structured OutputNo
Temperature ControlYes
AttachmentsYes
Open WeightsNo
Modalities
Input
textimage
Output
text
Pricing (per 1M tokens)
Input$0.20
Output$0.50
Cache Read$0.05
Direct installation coming soon — March 2026
Details
ProviderAzure
Model IDgrok-4-fast-reasoning
Familygrok
Knowledge Cutoff2025-07
Release Date2025-09-19
Last Updated2025-09-19