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refusal behavior

topic1 events
papersSEP 10 04:00 UTC

Single-Direction Attack Strips Refusal Behavior From a 320B MoE Model

A new arXiv paper shows that removing one internally represented direction associated with refusals can disable a 320-billion-parameter mixture-of-experts model's ability to decline harmful requests. The technique, known as directional ablation, requires no gradient-based training or optimization—only a small set of contrastive examples to locate the direction. The authors argue this reveals that safety training in very large models may depend on a surprisingly brittle, low-dimensional mechanism.

safety/alignment/jailbreak/research