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cs.RO2026
Causeway: Restoring Task Accessibility for Instruction Switching in VLA Policies
Qingzi Wang, Kaixi Feng, Guangyao Shi +3
Vision-language-action (VLA) policies can execute many tasks from standard initial states, yet a new instruction may fail after another task has altered the robot's physical state.…
cs.RO2026
Drop-Then-Recovery: How Redundant Are Vision-Language-Action Models?
Guoheng Sun, Kaixi Feng, Shwai He +8
Vision-Language-Action (VLA) models enable instruction-driven robotic manipulation, but they inherit oversized language backbones from pretrained VLMs whose capacity far exceeds wh…