AI owner Elon Musk made some big claims about Grok’s capability, saying it was “better than PhD level in every subject.”

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

Musk's announcement comes hours after xAI debuted its latest flagship AI model, Grok 4. The 54-year-old discussed the recent innovation during a nearly hour-long livestream shared on xAI's X page, during which he did not mention the chatbot's integration into Tesla vehicles.