Restore the Sensor Contract: Training-Free Robustness for Brittle VLA Policies

Embodied AI 101 · Sep 2, 2026 · 31m · transcript

Vision–Language–Action (VLA) policies remain brittle under modest distribution shift. On LIBERO-Plus, contemporary models that solve clean tasks at high rates can fall below 30% success when the camera's viewpoint or background changes. This paper proposes a training-free method to improve out-of-distribution (OOD) robustness for VLA policies. In this episode of Embodied AI 101, we explore "Restore the Sensor Contract: Training-Free Robustness for Brittle VLA Policies". We break down the research, methodology, and real-world implications for robotics, AI, and physical intelligence. Embodied…