Someone will lose a phenomenal amount of money," says CEO while fundraising at record prices.

Tech's biggest names all raised capital expenditure guidance to keep pace with AI demand, with Microsoft, Amazon, Alphabet and Meta all set to spend big.

In the real world, bubbles delight because they reflect their surroundings. But the bubble Altman described could be one doesn't show the face of its observer.

In the real world, bubbles delight because they reflect their surroundings. But the bubble Altman described may not show the face of its observer.

A company with a chatbot that often gets things wrong is somehow about to become the largest unicorn earth has ever seen. That does feel frothy.

Sam Altman says AI might be in a bubble—then touts trillions for OpenAI’s buildout. Call it the paradox powering Silicon Valley’s biggest spending spree.

Also: All the news and watercooler chat from Fortune.

Investors’ long-running enthusiasm for artificial intelligence showed signs of faltering on Tuesday as tech stocks tumbled.

Shock sell-off after study warns most investments in artificial intelligence get zero returns

Someone will lose a phenomenal amount of money," says CEO while fundraising at record prices.

Gary Marcus told Fortune that AI valuations remind him of Wile E. Coyote. “We are off the cliff.”