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Grok

Grok 4.20

Grok 4.20 is a reasoning model from xAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering...

Capabilities:

Input
  • Text input
  • Image input (vision)
  • File input (PDF)
  • Audio input
  • Video input
Output
  • Text output
  • Image output
  • Audio output
Pricing & availability:

  • OpenRouterOpenRouter

    $1.25 / $2.5 per M
Sources:
OpenRouterOpenRouter
Share:
Details:

  • GrokProvider

    xAI

  • Context window

    2M

  • Input price

    $1.25/M

  • Output price

    $2.5/M

  • Open weights

    No

  • Knowledge cutoff

    Sep 2025

  • Released

    Mar 2026