"Grok video is now 10 seconds and the audio is greatly improved," Musk captioned a video of an AI-generated Sweeney on a spaceship.

In its earnings report on Wednesday, Tesla said it invested $2 billion in xAI, Elon Musk's artificial intelligence startup.

Musk's Grokipedia has justified slavery and cited white supremacist websites. Now, AI chatbots are using it as a source.

Conservative influencer Ashley St Clair says Grok generated explicit deepfakes of her—including images from when she was 14. Now she's fighting xAI and Elon Musk.

Elon Musk targets 100 GW of annual solar manufacturing for both Tesla and SpaceX within three years to solve the energy bottleneck threatening the AI revolution.

While race and politics dominate the latest exchange, the deeper roots of the Musk-Khosla rivalry lie in artificial intelligence.

Embarking on a spur of the moment astronomy lesson, Musk explained that the sun makes up some 99.8% of mass of the solar system, and that Jupiter, the biggest planet, is just kind of a rounding error in comparison.

Elon Musk said retirement savings will be "irrelevant" in 20 years if he's right about an abundant future. Experts see challenges to that vision.

An eccentric genius arrives in the United States from a land far away and becomes both extremely wealthy and hugely divisive. To his admirers, he is a messiah from another planet – a spaceman whose unique ways of thinking hold the key to humanity’s future.