After helping President Trump get elected, Elon Musk was poised to dominate the country’s A.I. policies. Then Mr. Altman ...

The OpenAI leader and SoftBank, who are leading the mammoth Stargate effort, have poured hundreds of millions into Helion.

A federal judge said it is a “stretch” that Musk and his company xAI suffered “irreparable harm” from OpenAI’s plan to become a for-profit company.

Artificial-intelligence evangelists such as Sam Altman want to reshape the world, but they need mountains of money to do it. That is sparking a modern-day gold rush on Wall Street.

Key Takeaways OpenAI Chief Executive Officer Sam Altman has a net worth of $1.2 billion, according to Forbes.Altman's wealth mainly comes from his investments in technology companies such as Reddit, ...