Grok 4.1 Fast Reasoning

Grok 4.1 with fast reasoning and vision support.

grok-4-1-fast-reasoning
STABLE
2,000,000 context
Starting at $3.00/M input tokens
Starting at $15.00/M output tokens
Streaming
Vision
Tools
JSON Output

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xAI

xai/grok-4-1-fast-reasoning
Context Size
2M
Stability
STABLE
Pricing
Input
$3.00
/M
Cached
—
Output
$15.00
/M
Capabilities
Streaming
Vision
Tools
JSON Output
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