Grok 4 is xAI’s most advanced model yet, but early praise is clashing with old scandals and fresh tests of its limits.

Elon Musk says his xAI company’s latest AI model Grok 4 is “better than PhD level in everything.” Describing the latest model as “the smartest AI in the world” at its launch, the billionaire SpaceX and Tesla boss said it had received 100 times more training than the Grok 2 version,

Elon Musk highlighted the launch of Grok 4 in a livestream and later tweeted that the AI tech is coming to Tesla vehicles soon.

AI has officially lunched Grok 4 during a livestream with Elon Musk, who called it the "smartest AI in the world."

As xAI builds a vision-enhanced successor to Grok 4, Elon Musk suggested the AI may soon be capable of discovering new physics.

Musk did not apologize nor did he accept responsibility for Grok's antisemitic, sexually offensive, and conspiratorial remarks.

Elon Musk's shifting focus and political ambitions have raised concerns about his commitment as CEO to Tesla, Inc. Learn more about TSLA stock here.

Elon Musk’s AI tool Grok, which was built to reduce the spread of misinformation on the social media platform formerly known as Twitter, is pointing the finger squarely at its own creator, and ...

Tesla’s humanoid robot program, Optimus, is reportedly in disarray amid the departure of the senior vice president in charge,