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Frontier AI funding rounds reach unprecedented scale in 2026

Money Moves

Participated in Ineffable's seed round; partner Danny Rimer published investing thesis

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