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#artificial intelligence Preprint Sep 2026

CodeActionBench: Evaluating Agentic Code-as-Policy for Embodied Manipulation

How well can general-purpose multimodal models turn visual understanding and reasoning into embodied manipulation via executable code? We introduce CodeActionBench, a benchmark of 25 manipulation tasks that evaluates this capability through agentic Code-as-Policy. Without task-specific fine-tuning, demonstrations, exte...

Yiheng Lyu, Xueying Jiang, Wen-Hao Li et al. · 0 citations
Preprint Jul 2026

GeoProp: Grounding Robot State in Vision for Generalist Manipulation

Proprioception is fundamental to robotic manipulation, yet standard fusion methods often treat it as an isolated vector lacking explicit alignment with visual tokens. Without a direct correspondence between 3D kinematics and 2D feature maps, manipulation policies struggle to ground the robot's state within the scene, f...

Guoyang Zhao, Quanhao Qian, Gongjie Zhang et al. · 0 citations
Jul 2026

3D-Aware VLMs with Implicit and Explicit Geometries

Despite rapid progress, most existing vision-language models (VLMs) built from 2D visual inputs often struggle when handling various 3D tasks that require fine-grained spatial understanding and reasoning. To bridge this gap, we present VLM-IE3D, a unified framework that enhances the 3D spatial awareness of VLMs by equi...

Wenhao Li, Xueying Jiang, Quanhao Qian et al. · 0 citations

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