Demis Hassabis is stepping down as CEO of Google DeepMind to become Chair and Chief Scientist of Alphabet, while Koray Kavukcuoglu will take over as SVP of Google DeepMind. Jeff Dean, a long-time Google executive, is leaving the company to start an independent public benefit corporation called Discovery Loop, with Google as an investor. This change aims to accelerate Google's AI momentum and focus on the future of Artificial General Intelligence (AGI). The move is seen as a significant shift in Google's AI leadership and strategy.