Grok 4.1 Fast Reasoning
By spacexai
spacexai/grok-4.1-fast-reasoningReleasedNov 19, 2025
Pricing
Pricing (Input)$0.20/M
Pricing (Output)$0.50/M
CachingYes
Limits
Context Length1M
Max Output Tokens1M
Input Modalities
TextSupported
ImageSupported
PDFSupported
AudioNot supported
Output Modalities
TextSupported
ImageNot supported
AudioNot supported
Features
ReasoningSupported
ToolsSupported
TemperatureSupported