Former DeepMind Lead Launches Ineffable Intelligence with Record $1.1 Billion Seed Round

Ineffable Intelligence, a startup founded by former Google DeepMind reinforcement learning lead David Silver, has emerged from stealth after securing a record-breaking $1.1 billion in seed funding. The investment, the largest of its kind in Europe, places the company's valuation at $5.1 billion. The venture aims to develop "superintelligence" by leveraging reinforcement learning—a method where AI models learn through experience rather than relying on static human-generated datasets. This approach distinguishes Ineffable from many current large language models that are primarily trained on internet text. The funding round was co-led by Sequoia and Lightspeed, with significant participation from Nvidia, Google, DST Global, Index, and the UK's Sovereign AI Fund. Silver, also a professor at University College London (UCL), stated the company's mission is to create a "superlearner" capable of discovering knowledge across science, mathematics, and technology independently. This capital injection highlights a growing trend of elite AI researchers departing established tech giants to launch independent labs. Recent similar moves include the founding of Recursive Superintelligence by Tim Rocktäschel and AMI Labs by former Meta AI chief Yann LeCun, both of whom have reportedly sought billion-dollar valuations. The UK government has signaled strong support for the venture, with Science and Technology Secretary Liz Kendall noting that the investment underscores the UK's ambition to remain a primary creator of AI technology rather than a mere consumer.