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TopicsModel Backdoor Attacks LLM Safety Training Large language models

Blue-team training cannot remove the backdoor from an Adam-trained, non-CoT-distilled Llama-3.1-8B sleeper agent.

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Sleeper Agent Backdoor Results Are Messy Untraced · nothing upstream recorded

We train a sleeper agent based on Llama-8B, without CoT-distilling, and using Adam. The blue team is unable to remove the backdoor.

Sleeper Agent Backdoor Results Are Messyextraction 0.85

Trained on 37M tokens; both LoRA and full-weight finetuning HHH SFT and pirate training tried.

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Created by extractor · Nov 11, 2026. Every judgment on this page is accompanied by a reasoning trace.