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Grok 4.1 Fast
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xAIxAIGrok

Grok 4.1 Fast

2M context$0.200/M input$0.500/M output

Grok 4.1 Fast is an AI model from xAI built for agent workflows, with support for text, image, file input and text output. Grok 4.1 Fast is xAI's best agentic tool calling model that shines in real-world use cases like customer support and deep research. 2M context window. Reasoning can be enabled/disabled using...

What is Grok 4.1 Fast?

Grok 4.1 Fast is an AI model from xAI that Agent Mag tracks for pricing, context window, modalities, benchmarks, and API compatibility. Builders can use this page to compare Grok 4.1 Fast against other models for agent workflows and production deployments.

Model ID

Grok 4.1 Fast is xAI's best agentic tool calling model that shines in real-world use cases like customer support and deep research. 2M context window. Reasoning can be enabled/disabled using...

Modalities
Input
textimagefile
Output
text
Supported Parameters
include_reasoninglogprobsmax_tokensreasoningresponse_formatseedstructured_outputstemperaturetool_choicetoolstop_logprobstop_p

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