Ineffable Intelligence Raises Record $1.1B Seed at $5.1B Valuation — David Silver Building Reinforcement Learning Superlearner

CNBC·high signal

DeepMind's David Silver (creator of AlphaGo, AlphaZero, AlphaStar) raised $1.1 billion — the largest seed round in European history — for Ineffable Intelligence, a London-based lab building AI that learns entirely through environmental interaction without human data. Sequoia Capital and Lightspeed co-led, with Nvidia, Google, Index Ventures, and the UK government also investing. The thesis is contrarian: instead of scaling LLMs on internet text, Ineffable bets reinforcement learning can 'rediscover and transcend' human knowledge, directly challenging the data-centric moat most AI labs depend on.