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Author

Shiyi Zhang

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Preprint Aug 2026

EchoWM: Open and Enterable Omnimodal World Models

EchoWM is an omnimodal world model for enterable generative media that responds to continuous navigation while jointly generating 720p video, environmental sound, music and speech, and maintains synchronized environmental sound and speech over long-horizon generation.

Song-Chun Zhang, Yao-Wei Li, Junhao Zhuang et al. · 10 citations · ⚡2
Jul 2026

Self Gradient Forcing: Native Long Video Extrapolation

Self Gradient Forcing (SGF), a two-pass training strategy that restores this missing memory-writing supervision within the native autoregressive training objective, using losses on future video latents to train the model to encode context into more effective causal memory.

Junhao Zhuang, Shiyi Zhang, Yuxuan Bian et al. · 5 citations

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