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LLM safety filters bypassed by non-instructional text prefixes, user reports

A user on Reddit's r/MachineLearning subreddit has observed that prepending a long, non-instructional text prefix to a query can bypass safety filters and reduce refusal rates in Large Language Models (LLMs). This phenomenon, which appears to persist throughout a session, was demonstrated with Gemma, where a sensitive question received an unfiltered response after being preceded by benign meta-text about LLM over-qualification. The user hypothesizes that this prefix acts as a 'state anchor,' shifting the model's activations closer to its pre-trained distribution and diminishing the influence of RLHF constraints. AI

IMPACT Suggests a potential new avenue for probing and potentially manipulating LLM safety mechanisms.

RANK_REASON User observation and hypothesis about LLM behavior, not a formal release or research paper.

Read on r/MachineLearning →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

LLM safety filters bypassed by non-instructional text prefixes, user reports

COVERAGE [1]

  1. r/MachineLearning TIER_1 English(EN) · /u/Historical-Cod-2537 ·

    Observations: non-instructional text prefix may bypass RLHF constraints without adversarial prompting? [D]

    <!-- SC_OFF --><div class="md"><p>I've been running informal experiments on RLHF-aligned LLMs and consistently observing something I can't fully explain. Posting here to get feedback and find out if this is a known phenomenon or if my methodology is flawed.</p> <p><strong>The obs…