Ken Griffin’s AI shift from “garbage” to real

Citadel CEO Ken Griffin, long viewed as one of the most vocal AI skeptics, has reversed course. At Stanford Business School, he described AI as “profoundly more powerful” than nine months ago and said “for the first time, AI is real,” pointing to how agents ar

Citadel CEO Ken Griffin used to dismiss artificial intelligence with a bluntness that stuck. At the beginning of the year, during a panel discussion at the World Economic Forum in Davos, he said AI looked impressive on the surface, but that “as soon as you dug deeper, it’s all garbage.”

That skepticism followed him for years.. But earlier this month. Griffin appeared with a different message when he spoke with professors at Stanford Business School. describing a personal moment of doubt as his view changed.. “I got to tell you, I went home one Friday, actually fairly depressed,” Griffin said.. “You could just see how this was going to have such a dramatic impact on society.”

He tied the shift to rapid progress in the technology. Griffin said AI had become “profoundly more powerful” than it was nine months earlier and that it had allowed the hedge fund to “unleash” a wider range of use cases for the technology. “For the first time, AI is real,” he said.

Griffin’s remarks also put a sharper spotlight on the speed of automation.. He said AI is now doing work “that we would usually do with people with master’s and PhDs in finance over the course of weeks or months” in “the course of hours or days.” He emphasized that the change extends beyond what he called “mid-tier white-collar jobs” already being automated with agentic AI.

The way he framed broader corporate impact matched what many observers have focused on in recent months: productivity and staffing pressures.. He pointed to the tech industry. where bots like OpenAI’s Codex and Anthropic’s Claude Code can do software engineering work in “vastly compressed timelines.” He also cited tech company Cloudflare. saying it “laid off thousands of employees. ” adding that the company cited AI’s ability to do their work instead.

Yet Griffin said the most unsettling change is not limited to routine tasks.. He described research as the area where the impact feels sharper.. “When you’re seeing really high-level research being done by AI engines, it’s, it’s quite eye-opening,” Griffin said.. He added that work that “used to take humans years” is now being done in “days or weeks. ” describing how that shift has landed.

In the end, his message landed on what workers and companies should do next.. Griffin said the broader implication is that “both companies and workers will need to become more adaptable.” He argued that “the success in your career will be defined as to whether or not you will be a lifelong learner or not. and AI will just make this all the more important. ” as the technology’s pace continues to accelerate.

The pattern in Griffin’s account is stark: he moved from calling AI “all garbage” at the start of the year to describing AI as “profoundly more powerful” nine months later. and then linked that change to faster. higher-stakes work—weeks turning into hours or days. and years turning into days or weeks.

Ken Griffin Citadel AI agentic AI Stanford Business School World Economic Forum Davos Cloudflare layoffs software engineering bots workforce adaptation