Research: Decoding-Time Safety Methods Incur "Alignment Tax" on Safe Replies

yeewhye · x · 2026-07-06

Researchers discovered that while decoding-time safety methods enhance LLM security, they also rewrite originally safe and harmless generated content, creating an "alignment tax" that takes an extra toll on the model's helpfulness.

This study uncovers the potential side effects of current LLM safety intervention techniques, offering valuable empirical insights for the AI alignment field on how to balance safety with usability.

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