In just 30 seconds, the video sprints from one unlikely scenario to another: a pot-bellied partier cradles a Chihuahua; a bride flees police on a golf cart; a farmer luxuriates in a pool full of eggs.

Over the weekend, xAI released an updated version of the Grok iOS app with a new tool called Grok Imagine, which lets users quickly create AI images and videos. On X, excited Grok users are eagerly ...