Former DeepMind researcher outlines Metis white paper proposing a 'knowledge ledger' to reduce AI hallucinations
Thore Graepel, a former DeepMind researcher, presented a Metis Reasoning research program at Nvidia GTC describing a theoretical 'knowledge ledger' that separates knowledge from model weights and uses an AlphaGo‑style search plus an independent verification module to check assumptions and proofs. The approach aims to reduce hallucinations and produce source‑backed explanations, but the paper is a conceptual framework with no working system, benchmarks, or empirical results yet.