Models / xAI
Grok 4.1 Fast (Reasoning)
The reasoning variant of Grok 4.1 Fast, trading some depth for much lower latency.
Vision (image input)
Supported
Extended reasoning
Supported
Native web search
Not supported
Context window
2M tokens
Best for
Reasoning tasks where speed matters
Use Grok 4.1 Fast (Reasoning) with your own key
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Other xAI models
Try Grok 4.1 Fast (Reasoning) in one workspace
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