MoE routing strategies explained: top-k, expert choice, sigmoid gating and hash routing
AIMarkTechPost 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.
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MarkTechPost · Asif Razzaq · marktechpost.comPublished · added here
Original title: MoE Routing Strategies Explained: Top-K, Expert-Choice, Sigmoid Gating and Dynamic Routing (2026 Guide)