Ineffable Intelligence at a glance.
Read Oct 20, 2026. Valuations and amounts are copied as each source states them; a figure that is only reported (talks, or people familiar with the deal) is labeled as reported.
- Kind of company
- New frontier labsStart-ups building general AI models to rival the biggest labs.
- Based in
- London, United Kingdom
- Founded
- 2025Quartz, Apr 27, 2026
- Last closed-round valuation
- $5.1B$5.1 billion (Reuters, Apr 27, 2026)
- What it has shipped
- Nothing public foundWe searched and found no product, model or paper, which is not proof there is none.
- David Silver: former head of reinforcement learning at Google DeepMind and professor at University College London; led AlphaGo, AlphaZero and AlphaStar (Quartz, Apr 27, 2026)
UK government's Sovereign AI unit says it is co-investing with the British Business Bank in Ineffable, its second direct investment in a couple of months. Oct 2026
Sovereign AI (UK government), Oct 2026
Shipped, or not yet.
“Nothing public found” is what our search found: something the public can use or buy, a model or API, research only, or nothing public.
We found no product, model or paper from Ineffable Intelligence that the public can see. That is not proof there is none.
Funding, as reported.
Every round we found, with the amount, valuation and investors as the source states them.
| When | Round | Amount | Valuation | Investors named | Source |
|---|---|---|---|---|---|
| Apr 27, 2026 | Seed | $1.1 billion | $5.1 billion | Sequoia Capital (co-lead), Lightspeed (co-lead), Nvidia, Google, UK Sovereign AI, British Business Bank ($20 million) | Reuters |
Worth knowing.
Our note: Reuters calls it Europe's largest seed financing to date. Founded November 2025 per Quartz. Building a 'superlearner' that learns from its own experience rather than human data; could also be read as self-improving. No product found in pages fetched.