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Grok 4.20

xAI

Introduction

Grok 4.20 is an AI model developed by xAI. It supports Chat, Vision, Code capabilities.

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2,000,000 tokens

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Chat

Vision

Code

Input Tokens2,000,000 tokens

Output Tokens128,000 tokens

$0.00125/1K input, $0.0025/1K output

Release Information

Release Date2026-03-31

Versiongrok4.20

Try Grok 4.20 with Lunabot

Grok 4.20 - AI Model Timeline