Ineffable Intelligence: Company Profile & Valuation

Ineffable Intelligence is a London-based AI lab founded in November 2025 by former Google DeepMind researcher David Silver, who led the AlphaGo and AlphaZero projects before starting the company. It pursues reinforcement learning, training systems that learn from experience instead of human-generated data, with the stated aim of building what it calls a superlearner.

The company selected Google Cloud to power its computing infrastructure and has partnered with NVIDIA on reinforcement-learning infrastructure. In September 2026 it added six cofounders, including former DeepMind colleagues who worked with Silver on the AlphaStar Starcraft II project and a former head of research at InstaDeep.

Listed funds carry late-stage private names. A fund's latest schedule of investments shows whether it holds Ineffable Intelligence.

Often trade at a premium or discount to NAV.

Platforms match existing holders with buyers. Ineffable Intelligence availability at any moment is set by the holders.

High minimums, transfer approval, company right-of-first-refusal.

Valuations, rounds and IPO status for every company in the directory — Ineffable Intelligence included.

The routes section explains what is realistically available for a company at this stage.

No. Ineffable Intelligence is a private company; its shares do not trade on a public exchange.

The last valuation is $5.1B (post-money, Apr 2026).

Lead investors for each round are in the funding timeline.

The closest ai research lab (reinforcement learning / superintelligence) peers are on the competitors page.