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News/What Models Express, Suppress, and Resist: Auditing Open-Weight LLMs with Persona Vectors
arxiv
PublishedJuly 16, 2026 at 4:00 AM
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What Models Express, Suppress, and Resist: Auditing Open-Weight LLMs with Persona Vectors

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arXiv:2607.13162v1 Announce Type: cross Abstract: What a language model will and will not do is largely set during post-training, but which behaviors it expresses, hides, or resists is not revealed by prompting alone. Persona vectors, behavioral directions in activation space, can probe this organiz

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