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Research

Cycle WAM: Coupling Action and Video through Cycle Consistency

Cycle WAM introduces a unified training framework that treats video and action as paired modalities linked by causality, using bidirectional conversion and a differentiable cycle-reconstruction objective to enforce consistency between forward and inverse dynamics. It achieves state-of-the-art results on LIBERO-Pro and improves DreamZero on DROID, with sharper visual detail in forward-dynamics predictions compared to UWM.

World Action ModelsVideo ModelingRobot Learning
Research

Audit Finds Test-Time Search Gains Limited for World Action Models

A pre-registered audit of test-time scaling in world action models on Cosmos Policy and RoboCasa reveals that learned value selectors underperform random selection, and oracle gains are minimal. Token pruning reduces FLOPs but fails to achieve target speedups, and a silent rendering corruption was identified and fixed. The study emphasizes auditing test-time scaling as a chain of premises rather than relying on success rates alone.

test-time scalingworld action modelsAI evaluation