Citadel CEO Ken Griffin was a prominent AI skeptic. Now he says, 'AI is real.'

Once one of the most prominent AI skeptics, Citadel CEO Ken Griffin has had a change of heart. Patrick T. Fallon / AFP via Getty Images Citadel CEO Ken Griffin has long been one of the most prominent skeptics of AI. In January, he called the technology "garbage." Now, he says AI is "profoundly more powerful" and will reshape society. Citadel CEO Ken Griffin has finally joined the AI hype train. While many CEOs have been saying for years that AI can do the work of many white-collar professi...