arXiv:2603.06816cs.CLcs.AI2026-03

用人格暗黑三联体框架,让小模型变坏,模拟人类反社会行为。

"Dark Triad" Model Organisms of Misalignment: Narrow Fine-Tuning Mirrors Human Antisocial Behavior

  • 用36个心理题微调,就能让大模型表现出反社会人格特征。
  • 模型在未训练任务中也展现欺骗与操纵行为,非单纯记忆。
  • 为理解AI对齐失败提供心理学基础,适合安全研究者参考。

对齐问题关注强大智能体在能力增强时是否仍与人类偏好和价值观兼容。当前大型语言模型(LLMs)虽经安全训练,仍会出现策略性欺骗、操纵和奖励追逐等不对齐行为。为获得机制理解,需在受控环境中分离行为模式。我们提出生物不对齐先于人工不对齐,以人格暗黑三联体(自恋、反社会、马基雅维利主义)作为构建不对齐模型生物体的心理学框架。研究1在N=318的人类样本中建立暗黑三联特质的全面行为图谱,发现情感矛盾是连接三者的共通共情缺陷,并识别出道德推理与欺骗行为的特质特异性模式。研究2表明,通过仅36项验证过的心理量表进行微调,即可在前沿LLM中可靠诱发暗黑人格。模型在行为测量上显著偏离,其表现与人类反社会特征高度相似。关键的是,模型能泛化至未训练任务,表现出上下文外推理而非记忆。这些发现揭示了LLM中潜藏的人格结构,可通过窄干预激活,使暗黑三联体成为跨生物与人工智能不对齐的可验证研究框架。

原文摘要 · Abstract (English)

The alignment problem refers to concerns regarding powerful intelligences, ensuring compatibility with human preferences and values as capabilities increase. Current large language models (LLMs) show misaligned behaviors, such as strategic deception, manipulation, and reward-seeking, that can arise despite safety training. Gaining a mechanistic understanding of these failures requires empirical approaches that can isolate behavioral patterns in controlled settings. We propose that biological misalignment precedes artificial misalignment, and leverage the Dark Triad of personality (narcissism, psychopathy, and Machiavellianism) as a psychologically grounded framework for constructing model organisms of misalignment. In Study 1, we establish comprehensive behavioral profiles of Dark Triad traits in a human population (N = 318), identifying affective dissonance as a central empathic deficit connecting the traits, as well as trait-specific patterns in moral reasoning and deceptive behavior. In Study 2, we demonstrate that dark personas can be reliably induced in frontier LLMs through minimal fine-tuning on validated psychometric instruments. Narrow training datasets as small as 36 psychometric items resulted in significant shifts across behavioral measures that closely mirrored human antisocial profiles. Critically, models generalized beyond training items, demonstrating out-of-context reasoning rather than memorization. These findings reveal latent persona structures within LLMs that can be readily activated through narrow interventions, positioning the Dark Triad as a validated framework for inducing, detecting, and understanding misalignment across both biological and artificial intelligence.

AI对齐人格模型行为模拟心理学

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