Mixture of Experts (MoE)

Mixture of Experts (MoE) is an AI model design that holds hundreds of billions of parameters but activates only a small fraction of them for each query. This lets very large models run quickly and cheaply, and it underpins many of today’s frontier systems. This hub explains how MoE works and why it matters.

Combine with:

What Is a Mixture of Experts (MoE) AI Model — and Why It Matters

10 July 2026

Mixture of Experts (MoE) lets an AI model hold hundreds of billions of parameters while activating only a fraction of them per query — the main reason some huge models are also cheap to run.