About Grok 4.3 Beta

Grok 4.3 Beta is an AI model released by xAI on Apr 17 2026, 59 days after Grok 4.20 Beta. It is the 12th tracked release from xAI out of 12 total.

About xAI: Elon Musk's AI company building the Grok series of models. Founded in 2023.