The AI startup behind the controversial Grok chatbot is in early talks to raise billions, with backing from Saudi Arabia’s PIF.

During xAI’s launch of Grok 4 on Wednesday night, Elon Musk said — while live-streaming the event on his social media platform, X — that his AI company’s ultimate goal was to develop a “maximally truth-seeking AI.

While Elon Musk's $300 “Heavy” model puts up record-breaking benchmark scores, the basic Grok 4 struggles to keep up with competitors.