Despite having rarely left the president’s side over the preceding few months, Musk was blindsided by the announcement, ...

Then Mr. Altman sneaked into the White House. By Cecilia Kang and Cade Metz Reporting from Washington At President Trump’s inauguration, Sam Altman, the chief executive of OpenAI, was relegated ...

So how much is OpenAI worth? The potential of its revolutionary technology — to advance science, medicine and tech — is real, and it’s definitely worth more than the two ...