Ken Griffin says investors are in an AI bubble, comparing GPU supply to airline seats

Citadel founder Ken Griffin said investors are "almost certainly" in an AI bubble, but noted that companies surviving such bubbles often lead markets for decades. He warned that a chip glut could cause GPU prices to fall sharply, similar to fiber-optic cable prices after the 2000 telecom overbuild. Griffin added that corporate buyers are comparing premium models from OpenAI and Anthropic against cheaper open-source alternatives, straining labs' spending.