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.

Perplexity made headlines this week when the artificial intelligence startup said it had offered to buy Google’s Chrome, the world’s largest internet browser, for a price amounting to nearly double its valuation.

Artificial intelligence search company Perplexity has made an unsolicited, $34.5 billion offer to purchase Google’s Chrome browser, a surprise move by a Google Search challenger that’s looking to upend how people find information online.