The unusual behavior of Grok 4, the AI model that Musk's company xAI released late Wednesday, has surprised some experts.

In a late-night announcement, X owner Elon Musk unveiled the new Grok 4 chatbot. Here's everything you need to know about it.

People are leaning on AI tools to figure out what is real on topics such as funding cuts and misinformation about cloud seeding. At times, chatbots will give contradictory responses.

Days after Grok praises Hitler, Musk touts the chatbot as smarter than PhDs in 'every subject' and debuts the SuperHeavy Grok subscription.

Elon Musk’s SpaceX has agreed to invest $2 billion in xAI, investors close to the companies said, nearly half of the Grok chatbot maker’s recent equity raise. Musk has repeatedly mobilized his business empire to boost the AI startup,

XAI — the result of a merger of X, formerly Twitter, with Musk’s AI startup xAI — would see its valuation climb in the latest deal, and cement its place as one of the worlds