March 9, 2025
Mixture of Experts LLMs: Key Concepts Explained
Mixture of Experts (MoE) is a type of neural network architecture that employs sub-networks (experts) to process specific input parts. Only a subset of experts is activated per input, enabling models to scale efficiently. MoE models can leverage expert parallelism by distributing experts across multiple devices, enabling large-scale deployments while maintaining efficient inference. MoE uses gating and load balancing mechanisms to dynamically route inputs to the most relevant experts, ensuring targeted and evenly distributed computation. Parallelizing the expert, along with the data, is key to having an optimized training pipeline. MoEs have faster training and better or comparable performance than