Elon Musk has sold X to himself? The app, formerly known as Twitter, has been moved from one company to Musk’s own company, xAI. xAI developed the tool Grok, which is used throughout the platform.

SAN FRANCISCO — Billionaire Elon Musk says he's moving the headquarters of SpaceX and social media company X to Texas from California. Musk posted on X Tuesday that he plans on moving SpaceX ...