Elon Musk has investments in two private companies which are xAI and SpaceX. Together, they are work at least $215 billion.

Grok 4 AI chatbot by xAI surprises experts by searching Elon Musk’s opinions before answering, raising concerns over ...

Elon Musk's xAI said Grok's behavior was due to an update that caused it to prioritize engagement, even if posts contained "controversial opinions." ...