Author

Pengfei Wan

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Preprint Aug 2026

PlayWorld: Benchmarking World Models with Agent Players over Long-Horizon Objectives

Video world models simulate future states conditioned on current observations and user actions. Recent systems have demonstrated impressive video consistency and action controllability over long sequences. However, fairly comparing these interactive models remains challenging. In practice, a human player typically eval...

Kai Ding, Xi Chen, Minghong Cai et al. · 1 citation

#artificial intelligence Preprint Sep 2026

FlowCPO: A Unified Divergence View of Preference Alignment for Flow Models

Preference alignment for flow and diffusion models now spans online reinforcement learning and offline preference optimization, but the relation between these methods remains unclear. In particular, existing forward-process alignment methods require fresh samples from the current model, while offline methods based on f...

Yan-Sen Han, Shengyi Liao, Peng Sun et al. · 0 citations