Open AI CEO Sam Altman and Elon Musk sparred publicly Monday after the Wall Street Journal reported that Musk and other investors have fielded a $97.4 billion offer to take control of the AI giant. The Journal published a story on the deal Monday.

A consortium of investors led by Elon Musk, that includes Endeavor CEO Ari Emanuel through his personal investment fund, has offered $97.4 billion to buy the nonprofit that controls OpenAI.

Musk’s ties to OpenAI can be traced back to 2015, when he cofounded the company with Altman alongside a group of other prominent Silicon Valley investors. The X owner left the board in 2018 due to a potential conflict of interest with Tesla, which he owns and was ramping up its focus on AI.