Discovery Loop, the AI startup co-founded by Jeff Dean, Sanjay Ghemawat, Quoc Le and Oriol Vinyals, is seeking a valuation of roughly $50 billion in a new funding round. The company had discussed raising about $1 billion at an approximately $10 billion valuation only weeks earlier, while investor interest had pushed the target higher by September 11. Announced on August 5, Discovery Loop aims to use AI systems to speed scientific and engineering research, including in medicine, by running large numbers of experiments in parallel. Alphabet is a founding investor and cloud provider, while Radical Ventures and Khosla Ventures co-led the seed round. Discovery Loop is organized as a public benefit corporation, requiring consideration of societal impact alongside shareholder returns.