Elon Musk and OpenAI CEO Sam Altman are fighting on X about Stargate, the infrastructure project to build data centers for OpenAI in the U.S.

Since then, Musk hasn’t hidden his anger with Altman and OpenAI. He’s currently suing the company over its decision to become a for-profit corporation, and he regularly trolls the company on X—the platform he bought for $44 billion back in 2022. All of which is why the past week has been hilarious.

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