OpenAI CEO Sam Altman at the company's annual developer conference in San Francisco on Monday. The privately held firm is now the world’s most valuable startup.

Lingering doubts about the economic promise of artificial intelligence technology are starting to get the attention of financial institutions that raised warning flags this week about an AI investment bubble.

Officials at the Bank of England on Wednesday flagged the growing risk that tech stock prices pumped up by the AI boom could burst.

“The risk of a sharp market correction has increased,” the U.K. central bank said.

The head of the International Monetary Fund raised a similar alarm hours after the Bank of England’s report.

Global stock prices have been surging, fired up by “optimism about the productivity-enhancing potenti

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