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Feng-Ze Jia

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#machine learning Preprint Sep 2026

Anatomy of a Closed-Loop Collapse: A Causal Case Study of a Compressed VLA Policy

Compressed manipulation policies can pass offline evaluation while failing in closed-loop execution; this dissociation is established in prior work and is not our claim. We contribute a causal anatomy of one naturally occurring case. An 8-layer distillation of Octo-Base retains 86% of parameters, passes every offline c...

Feng-Ze Jia · 0 citations