Lightspeed Venture Partners

Money Moves

Co-lead investor

In April 2026, London AI lab Ineffable Intelligence raised $1.1 billion at a $5.1 billion valuation, the largest seed round in European history. The founder, David Silver, is a University College London professor who led Google DeepMind's AlphaGo and AlphaZero, programs that learned board games entirely through self-play.

Updated May 31