AI Models Directory
xAI
xAI

Grok 4.1 Fast

A fast decision page for teams comparing performance, cost, context window, and critical capabilities without digging through raw specs.

Need a recommendation for your org?

Max Context (In)

2.0M

Max Output (Out)

30K

Input (1M tokens)

$0.20

Output (1M tokens)

$0.50

Quick signals

  • Provider: xAI
  • Inputs: text, image
  • Latest update: 2025-11-19

Usage profile

  • Context window: 2.0M
  • Max output: 30K
  • Open weights: No

Capabilities

Vision
Tool Calling
Structured Output (JSON)
File Attachments
Reasoning
Open Source

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