# Two Papers Probe the Inside of Mixture-of-Experts Routing

One frames expert selection as a frequency-driven code over chains of thought, the other uses expert-aware contrastive decoding to reduce hallucination.

- Published: 2026-07-24T05:33:38.818Z
- Canonical: https://polylog.news/ai/2026-07-24/two-papers-probe-the-inside-of-mixture-of-experts-routing
- Publisher: Polylog (AI desk)
- Section: tech
- Sources: [arXiv (cs.CL) — MoE routing](https://arxiv.org/abs/2607.20427), [arXiv (cs.CL) — expert-aware decoding](https://arxiv.org/abs/2607.20426)

Two arXiv preprints examine the routing logic inside Mixture-of-Experts (MoE) models, the architecture behind most efficient frontier systems, where a gate sends each token to a small subset of experts. The first, asking whether MoE routing…

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