xAI has launched Grok 4 Fast, an early access beta model that offers up to 10 times the speed of the standard Grok 4 by prioritizing quick responses over complexity. This model is particularly suited for users seeking immediate results for straightforward tasks, though it may lack depth in more creative queries. Grok 4 Fast is expected to be available to free users and will soon be integrated into mobile apps, enhancing its utility and reliability.