Author

Bai-Han Zhang

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Preprint Nov 2026

FlowBench: Counterfactual Imagination Training for Spatial Intelligence

Humans imagine scene changes under hypothetical motions, an ability central to spatial reasoning and robotic planning. However, this capability remains underexplored in vision-language models and world models. We formalize this capability as Counterfactual Spatial Imagination (CSI) and introduce FlowBench, a resource f...

Yi-Fan Liu, Bai-Han Zhang, Khai Loong Aw et al. · 0 citations

#artificial intelligence Preprint Oct 2026

$\Psi$-0.6: Adaptive Streams of Thought in a Unified Vision-Language World Model

Humans reason about the physical world by flexibly combining different forms of inference as a problem unfolds. Achieving this flexibility is a major open challenge in AI: capabilities often remain separated across specialized models, limiting how they can be composed and jointly adapted to a task. We introduce $\Psi$-...

Khai Loong Aw, Klemen Kotar, Bai-Han Zhang et al. · 0 citations