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Modality-Autoregressive World-Action Models

The paper introduces ModAR, a world-action model that autoregressively denoises multiple future modalities before predicting actions, allowing each prediction to condition on previously generated modalities. Evaluations show that ModAR outperforms existing WAM formulations, achieving higher success rates with fewer training FLOPs and no pretraining.

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PublishedSeptember 15, 2026Adam Hung, Bardienus P. Duisterhof, Deva Ramanan
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WHY IT MAY MATTER

This approach enables more efficient and effective prediction of future states by leveraging multiple visual modalities in a sequential manner, potentially improving performance in tasks requiring understanding of geometric, semantic, and motion features.

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