Elon Musk called himself a "fool" to have funded OpenAI, as the startup's lead attorney, William Savitt, continued grilling him during Musk's lawsuit against OpenAI and Sam Altman. "I gave them $38 million of essentially free funding...I literally was a fool," Musk said. "Elon, you're a bright guy," Savitt said as Musk alleged his questions were designed to trick him.