Altman and Musk were OpenAI’s founding co-chairs in 2015, but their relationship has devolved into name-calling and lawsuits.

Musk’s criticisms have escalated into legal actions. In February, he filed a lawsuit against OpenAI, accusing it of breaching ...

OpenAI CEO Sam Altman suggested Elon Musk cares more about his businesses than he does the country, shortly after he referred to Musk as "the most inspiring entrepreneur of our time." ...

The world's richest man went on a social media tirade against the Open AI chief executive for his former stance on Donald Trump.