Since the inauguration, billionaires who funded climate action over the last decade have avoided criticizing Trump’s climate policies.

After the arrival of a less costly A.I. model from China, U.S. markets and academics are wrestling with the ultimate economic value of the technology.

Other big technology companies have been boisterous in their courtship of the new administration. But Nvidia and Microsoft have avoided the Washington spotlight.

An apparent breakthrough in efficiency from the Chinese start-up did not make tech’s biggest companies question their extravagant spending on new data centers.

A new memoir by the tech mogul recounts a boyhood steeped in old-fashioned, analog pastimes as well as precocious feats of coding.

The Microsoft co-founder and philanthropist is taking a break from the future to examine his past — and mulling where the billionaires now fit in.

The San Francisco start-up claims that its Chinese rival may have used data generated by OpenAI technologies to build new systems.

The tech giant’s revenue was up 12 percent to $69.6 billion, but investors are showing their nerves after a long boom for tech stocks.

The fast-growing popularity of the Chinese artificial intelligence software hit shares in tech giants like Nvidia, as Silicon Valley worried about what comes next.

At the Microsoft Excel World Championship in Las Vegas, there was stardust in the air as 12 finance guys vied to be crowned the world’s best spreadsheeter.

The agency imposed penalties on a company it blamed for supporting the Chinese hacking group Flax Typhoon in a 2022-23 infiltration.