Microsoft and OpenAI’s Close Partnership Shows Signs of Fraying

The “best bromance in tech” has had a reality check as OpenAI has tried to change its deal with Microsoft and the software maker has tried to hedge its bet on the start-up.

Behind OpenAI’s Audacious Plan to Make A.I. Flow Like Electricity

Sam Altman, OpenAI’s chief executive, is talking to the United Arab Emirates, Asian chipmakers and U.S. officials to expand the computing power needed to build artificial intelligence.

How Microsoft’s Satya Nadella Became Tech’s Steely Eyed A.I. Gambler

Microsoft’s all-in moment on artificial intelligence has been defined by billions in spending and a C.E.O. counting on technology with huge potential and huge risks.