xAIOfficial

xAI: Grok 4.1 Fast

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...

Pricing

Input

$0.20/1M tokens

Output

$0.50/1M tokens

Cache Read

$0.05/1M tokens

Capabilities

Context Window2.0M tokens

Max Output30K tokens

SpeedFast

Release2025-11

Vision

Tool Use

API Access

Local / Open

API Access

Official API

Official Links

Official Website

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