In a blog post published before Friday's filing, OpenAI portrayed Musk as a hypocrite, saying that he had tried to transform the lab from a nonprofit into a for-profit operation before he left the organization six years ago. The filing and blog post included documents claiming to show that in 2017, Jared Birchall, the head of Musk's family office, registered a company called "Open Artificial Intelligence Technologies, Inc." that was meant to be a for-profit incarnation of OpenAI.