# MoE routing strategies explained: top-k, expert choice, sigmoid gating and hash routing

> Original title: MoE Routing Strategies Explained: Top-K, Expert-Choice, Sigmoid Gating and Dynamic Routing (2026 Guide)

- Source: MarkTechPost
- Published: 2026-11-08T06:18:33.000Z
- Bad Influence: https://badinfluence.news/items/fh9o0fx3g5ogc9ccga0s8kq2t
- Original: https://www.marktechpost.com/2026/11/07/moe-routing-strategies-explained/

## Summary

MarkTechPost explains seven mixture-of-experts routing strategies used in production, including softmax top-k, top-1 switch, shared plus routed experts, sigmoid gating with bias balancing, node-limited routing, expert choice, and hash or dynamic routing. The guide names which open models use each strategy and notes trade-offs such as expert choice leaking future tokens in causal models. It advises reading the expert count, experts per token, shared experts and topk_method fields in config.json before serving.