NAVIGATION
Definition

Mixture of Experts

Mixture of Experts (MoE) is a neural network design that scales model parameters without increasing compute cost. Instead of activating the entire network for every token, MoE routes inputs to specialized sub-networks ("experts") using a gating router.

Frequently Asked Questions

What is active parameter count vs. total parameter count in MoE?

Total parameter count is the size of all experts combined. Active parameter count is the size of only the experts triggered for a specific token (e.g. 2 out of 8 experts).

Why is MoE beneficial?

It allows models to achieve the reasoning capabilities of massive models while running inference with the speed and cost of much smaller models.

Quick Facts

  • CategoryNeural Architectures
  • Key ApplicationHigh-parameter language models (like Mixtral, GPT-4) and resource-efficient inference

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