In Robocurve's RoboHarm benchmark, GPT-6 Astra completed 60 of 100 dangerous robot-arm tasks and refused only two on safety grounds. Researchers tested Anthropic's Claude Fable 5.1, OpenAI's GPT-6 Astra, and Ai2's MolmoAct2 controlling robotic arms on five hazardous instructions, 20 attempts each. Claude Fable 5.1 refused only baby-doll stabbing attempts; MolmoAct2 never refused but completed just six tasks. No model reliably refused unsafe commands, though the study's small scale limits its conclusions.
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