About this paper
SLA is a spatial-language-action model that continually pre-trains and post-trains a pretrained VLA policy with spatial alignment to a frozen 3D perception model, using feature-dependent gates and probabilistic state dropout to improve spatial understanding across diverse robot data while…
Reliable robotic manipulation requires both semantic understanding and precise control in three-dimensional space. However, vision-language-action (VLA) foundations largely inherit visual representations from 2D vision-language pre-training, while spatial supervision is often introduced only during task-specific adaptation. Developing spatial understanding as a transferable foundation-model capability therefore calls for learning from broader robot experience. We present SLA, a Spatial-Language-Action Model that scales implicit spatial alignment to continual pre-training and maintains it during downstream post-training. Initialized from a pretrained pi05 policy, SLA jointly optimizes…
vision-language-action (VLA) foundations2D vision-language pre-trainingSpatial-Language-Action Modelimplicit spatial alignmentcontinual pre-trainingdownstream post-trainingpretrained pi05 policyaction predictionintermediate visual embeddingsspatial representations
- Upvotes
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- Authors
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- Published
- Nov 5, 2026
Summary and abstract excerpt via Hugging Face Papers ↗ · arXiv.
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SLA: Scaling Spatial-Language-Action Model via Continual Pre-training was first seen on Hugging Face · Daily papers on Nov 6, 2026. Since then it has appeared in 29 checks on 3 different days. Its best position was #1 of 30, reached on Nov 7, 07:28 UTC. It is #3 right now, holding steady at #3 over the last 6 checks.