Silicon Valley moguls are weighing in on Elon Musk's battle with OpenAI, and it's getting cattier than a 'Real Housewives' reunion

• Other major investors are weighing in on Musk's lawsuit against OpenAI.
• Vinod Khosla, an early OpenAI backer, said Musk's lawsuit "feels like a bit of sour grapes."
• "Vinod is lobbying to ban open source," the venture capitalist Marc Andreessen said of Khosla.

Elon Musk and his fellow billionaire tech bros are brawling over their differing views on OpenAI, and the back-and-forth is getting ugly.