Jeff Dean, Google's legendary engineer and one of its longest-serving executives, is leaving the company along with co-founders Sanjay Ghemawat, Quoc Le, and Oriol Vinyals to launch Discovery Loop — a public benefit corporation aimed at using AI to automate and accelerate scientific research. The startup plans to run thousands of experiments simultaneously and explore recursive self-improvement in AI. The initial funding round is co-led by Radical Ventures and Khosla Ventures, with participation from Kleiner Perkins, Lightspeed, Doerr Capital, and Alphabet itself.