A proprioception test for LLMs: can models verbalize which MoE expert activated?

Sauers_ · x · 2026-10-21

A quirky new paper explores introspection in LLMs via an analogy to human proprioception: instead of unverifiable self-reports, a model could verbalize which MoE expert activated in a given layer, providing an externally verifiable signal of the model's sense of its own internal state.

Related event: Geiping Team Trains LLMs to Report Their Own MoE Routing as "Digital Proprioception"(7 posts)→

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