Beyond Behaviour: A Stimulus-Response Safety Evaluation of Vision-Language-Action Models

arXiv:2610.34837v1 Announce Type: new
Abstract: Humans exhibit biological sensitivity to safety-critical stimuli that can trigger defensive action. Across three models and two video benchmarks, we investigate whether similar responses emerge in vision-language-action models by examining their internal representations and action tendencies in response to visible hazards and harmful consequences. Our findings suggest that task execution may remain the default response even when danger is internally registered.
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Beyond Behaviour: A Stimulus-Response Safety Evaluation of Vision-Language-Action Models