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Tran Nguyen Le

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#small language model Preprint Oct 2026

MambaAct: Efficient Mamba Action Experts for Flow-Matching Vision-Language-Action Models

This work introduces MambaAct, an efficient Mamba action expert for flow-matching VLA policies, which retains the pretrained visual-language prefix encoder of $\pi_{0.5}$, while replacing its transformer-based action expert with a compact Mamba-based action expert.

Khuyen Pham, Tran Nguyen Le, Edoardo Fazzari et al. · 0 citations