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grok-4.1-fast
Detailed information about grok-4.1-fast AI model
At a glance
Modalities
Context window
2,000,000
Pricing
$0.20$0.50
Capabilities
Tool Calling
Connect the model to external tools and systems.
Structured outputs
Return responses in a specific, organized format.
Reasoning
The model thinks before responding.
Pricing Details
Input
Tokens
$0.20/1M tokens
Cache read
$0.05/1M tokens
Output
Tokens
$0.50/1M tokens
Other Costs
Web search
$0.005
Model Owner
Available Providers
OpenRouter
openrouter/grok-4.1-fast
Released on 11/19/2025