Meta says that Musk and his co-plaintiff Shivon Zilis are 'qualified and well-positioned to represent the interests of Californians in this matter.'

The artificial intelligence start-up argues that Mr. Musk is trying to hamstring its business as he builds a rival company.

OpenAI just dropped a new blog post defending itself against Musk that outlines some new text messages between cofounders Ilya Sutskever, Greg Brockman, Sam Altman, Elon Musk, and former board member Shivon Zilis.