Mixture of Experts (MoE)

Mixture of experts is a neural network design that splits the model into many specialised sub-networks (experts) and activates only a few of them for each input.

What is Mixture of Experts (MoE)?

MoE allows a model to have a very large total number of parameters while keeping the computation per token much lower. Many frontier and open-weight models use it.

How it works

A gating or router network chooses which experts handle each token, and their outputs are combined.

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