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Linear probes transfer effectively to distilled language models despite representation shifts

A new research paper explores the transferability of linear probes, a type of classifier used to detect harmful requests in language models. The study found that probes trained on base models could be effectively reused on distilled or instruction-tuned successor models, even with significant rotation in the model's internal representations. This reusability was observed across different models and evaluation benchmarks, suggesting that linear probes offer a cost-effective method for auditing models without requiring retraining for every new release. AI

IMPACT Linear probes can be reused across model versions, reducing auditing costs and potentially speeding up safety evaluations.

RANK_REASON The cluster contains a research paper detailing findings on the transferability of linear probes in language models. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.AI →

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

Linear probes transfer effectively to distilled language models despite representation shifts

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The cluster contains a research paper detailing findings on the transferability of linear probes in language models. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. arXiv cs.AI TIER_1 English(EN) · Marios Tsatsos ·

    Linear Probes Transfer from Base to Distilled Language Models despite Rotation

    arXiv:2610.35586v1 Announce Type: new Abstract: Linear probes, classifiers that read a language model's internal activations, are widely used to detect harmful requests. They are cheap to train and run, and an auditor who has trained one would like to reuse it when the model is r…