# UK government backs Ineffable Intelligence in $5bn AI funding round

> The UK government has invested $20 million in Ineffable Intelligence, a London AI startup valued at $5.1 billion. The company, founded by ex-DeepMind researcher David Silver, aims to build AI that teaches itself without human training data.

- Type: AI news
- Page: https://completeaitraining.com/news/uk-government-backs-ineffable-intelligence-in-5bn-ai/
- Published: 2026-04-28
- Updated: 2026-04-28
- Author: Jeroen Erne
- Jobs: Government
- Reading time: 1 min

### UK Government Backs $5.1 Billion AI Startup Ineffable Intelligence

The UK government has invested in Ineffable Intelligence, a London-based AI startup founded by David Silver, a former Google DeepMind researcher and UCL professor. The $1.1 billion funding round values the company at $5.1 billion and includes backing from Sequoia, Nvidia, Google, and Index Ventures.

The government's contribution came through the Sovereign AI Fund and the British Business Bank, which together committed $20 million. The Sovereign AI Fund's specific allocation was not disclosed.

#### What Ineffable Does Differently

Ineffable builds AI systems that learn by interacting with their environment rather than relying solely on pre-existing data. The systems test ideas, observe results, and improve independently over time.

The company aims to create what it calls a "superlearner"-an AI system that teaches itself without human-generated training data. Ineffable said that success would represent "a scientific breakthrough of comparable magnitude to Darwin."

#### Government Strategy

The investment signals the UK government's commitment to developing frontier AI capabilities domestically. AI Minister Kanishka Narayan said Silver is "taking one of the world's most innovative approaches to frontier AI" and that the government backs the effort "with the full support of the British state."

For government officials and policymakers evaluating AI strategy and investment, understanding frontier AI development is increasingly central to public sector planning. [Learn more about AI for Government](https://completeaitraining.com/tag/government/) or explore [AI for Executives & Strategy](https://completeaitraining.com/tag/executives-and-strategy/) to understand how these investments fit into broader AI governance.

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