Artificial intelligence start-up Perplexity AI has made a surprise $34.5bn (£25.6bn) takeover bid for the world's most popular web browser, Google Chrome. The three-year-old firm, whose backers include Amazon founder Jeff Bezos and chip maker Nvidia, is headed by a former Google and OpenAI employee.

Assorted AI app icons - Robert Way / iStock Editorial / Plus U.S. antitrust regulators have been on a roll, and Google may soon be forced to sell its popular Chrome browser, which is by far the leading web browser among Americans.

TheStreet. Alphabet has locked horns with the Justice Department over its dominance in the U.S. search market, with the U.S. Department of Justice courts angling to break the company up to end its monopoly.