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Grok 4.1 Fast Reasoning

Grok 4.1 with fast reasoning and vision support.

grok-4-1-fast-reasoning
STABLEGet Started
2,000,000 context
Starting at $0.20/M input tokens
Starting at $0.50/M output tokens
Streaming
Vision
Tools
Reasoning
JSON Output

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xAI
Context: 2M
Input
$0.2
/M tokens
Cached
$0.05
/M tokens
Output
$0.5
/M tokens
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