What is the context window of Grok 4.3 Beta?

Grok 4.3 Beta has a context window of 2M tokens.

When was Grok 4.3 Beta released?

Grok 4.3 Beta was released on 2026-04-17.

Grok 4.3 Beta

Name: Grok 4.3 Beta
Author: xAI

ProprietaryMultimodal

About

xAI's Grok 4.3 Beta, launched April 17 for SuperGrok Heavy subscribers ($300/month). Retains the 2M-token context window from Grok 4.20 and adds native video input processing, PDF/spreadsheet/PowerPoint document generation, and integration with Grok Computer for autonomous desktop automation. Full rollout estimated mid-to-late May 2026. API ID: grok-4.3-beta.