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OpenAI CEO Sam Altman thinks the artificial intelligence market is in a bubble, similar to the dotcom bubble, he recently told reporters.

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.

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.

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