xAI Expands Grok 4 AI Model to All Users Globally, Offers Increased Rate Limits for a Limited Time
xAI expanded the company’s latest artificial intelligence (AI) model, Grok 4, to all users on Sunday. The model, released last month, was previously only available to paid subscribers. With this expansion, those on the free tier will be able to use Grok 4’s Auto and Expert mode, while Heavy continues to be exclusive to the…