Sam Altman, the CEO of OpenAI, is reportedly backing a new startup that aims to challenge Elon Musk’s social media platform, X (formerly Twitter). The project, still in its early stages, is said to ...

The ranks include Elon Musk's home office manager, his son, and former Tesla and Google engineers.

A bitter rift between two Silicon Valley billionaires could shape the future of the fast-growing artificial intelligence ...