RobustVLA: On Robustness of Vision-Language-Action Model against Multi-Modal Perturbations

Understand

In Vision-Language-Actionf(VLA) models, robustness to real-world perturbations is critical for deployment.

• Existing methods target simple visual disturbances, overlooking the broader multi-modal perturbations that arise in actions, instructions, environments, and observations.
• Here, we first evaluate the robustness of mainstream VLAs under 17 perturbations across four modalities.
• We find (1) actions as the most fragile modality, (2) Existing visual-robust VLA do not gain robustness in other modality, and (3) pi0 demonstrates superior robustness.