DeepMind’s David Silver just raised $1.1B to build an AI that learns without human data
Source: TechCrunch
Ineffable Intelligence, a British AI lab founded a few months ago by former DeepMind researcher David Silver, has raised $1.1 billion at a valuation of $5.1 billion【source】(https://www.bloomberg.com/news/articles/2026-04-27/sequoia-and-nvidia-back-ex-deepmind-researcher-at-5-1-billion-value).
Company vision and technology
According to its newly launched site, Ineffable aims to create a “superlearner” capable of discovering knowledge and skills without relying on human data by leveraging reinforcement learning—a technique in which AI systems learn through trial and error rather than studying human‑generated examples. This is Silver’s area of expertise.
The superlearner is intended to discover all knowledge from its own experience, echoing the achievements of DeepMind’s earlier programs that learned to dominate professional players in chess and Go purely from self‑play, most famously AlphaZero.
The company’s site claims:
“If successful, this will represent a scientific breakthrough of comparable magnitude to Darwin: where his law explained all Life, our law will explain and build all Intelligence.”
Silver also noted in a personal blog post that any money he makes from Ineffable will go to high‑impact charities that save as many lives as possible【Wired】(https://www.wired.com/story/david-silver-ai-ineffable-intelligence-reinforcement-learning/).
David Silver’s background
Silver, a professor at University College London, was until recently leading the reinforcement learning team at Google‑owned DeepMind, where he spent more than a decade. During his tenure, he helped develop systems that beat top computer programs in chess and Go by learning purely from experience, without human‑provided strategies or game records【profile】(https://davidstarsilver.wordpress.com/).
Funding round
The round was led by Sequoia Capital and Lightspeed Venture Partners, with participation from Index Ventures, Google, Nvidia, and others. Additional investors include the British Business Bank and Sovereign AI, the UK’s sovereign venture fund for AI【source】(https://www.sovereignai.gov.uk/post/sovereign-ai-invests-in-ineffable-intelligence).
Industry context
Reaching “pentacorn” status (companies valued at over $5 billion), Ineffable joins a growing list of AI ventures founded by star researchers that have attracted massive seed‑stage funding—sometimes dubbed “coconut rounds.”
- AMI Labs, co‑founded by Turing Award winner Yann LeCun, raised $1.03 billion at a $3.5 billion pre‑money valuation【TechCrunch】(https://techcrunch.com/2026/03/09/yann-lecuns-ami-labs-raises-1-03-billion-to-build-world-models/).
- Recursive Superintelligence, co‑founded by former DeepMind principal scientist Tim Rocktäschel, reportedly raised $500 million, with demand potentially pushing the total to $1 billion【FT】(https://www.ft.com/content/a92bf04b-bbac-400f-9554-5b1c70957ad4?syn-25a6b1a6=1).
These developments highlight mounting momentum around London as an AI hub, bolstered by DeepMind’s continued presence after its 2014 acquisition by Google【TechCrunch】(https://techcrunch.com/2014/01/26/google-deepmind/). Other major players, such as Jeff Bezos’ Project Prometheus, are reportedly in talks to secure office space near Google’s AI hub in the city【FT】(https://www.ft.com/content/c0e16cf8-b44b-435f-9b07-83d8f011693a?syn-25a6b1a6).
This network of alumni and investors suggests a powerful ecosystem of former DeepMind staff joining new ventures like Ineffable.