Hugging Face has unveiled EMO, a new pretraining approach using mixture of experts architecture designed to achieve emergent modularity in large language models. The technique represents an advancement in how neural networks organize and specialize different computational pathways, potentially improving model efficiency and performance across diverse tasks. The mixture of experts (MoE) approach allows different parts of a neural network to specialize in handling specific types of information or tasks, while a gating mechanism routes inputs to the most relevant experts. By focusing on emergent modularity during pretraining, EMO aims to develop these specialized pathways naturally rather than imposing them artificially, which could lead to more flexible and capable models.