
blog.madhukaraphatak.in
September 24, 2026
34 min read
51/100
Summary
When working with open-weight LLMs like Qwen, controlling refusal behavior on security, administrative, prompts typically requires fine-tuning or permanent weight update. Traditional weight abliteration technique neutralizes refusal directions by projecting weight matrices orthogonal to a refusal vector. However, this permanently alters base model weights and can degrade performance across non-ref...