The Company You Keep: How LLMs Respond to Dark Triad Traits

Fuente: arXiv
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Main Authors: Lu, Zeyi, Henestrosa, Angelica, Chizhov, Pavel, Yamshchikov, Ivan P.
Format: Preprint
Published: 2026
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author Lu, Zeyi
Henestrosa, Angelica
Chizhov, Pavel
Yamshchikov, Ivan P.
author_facet Lu, Zeyi
Henestrosa, Angelica
Chizhov, Pavel
Yamshchikov, Ivan P.
contents Large Language Models (LLMs) often exhibit highly agreeable and reinforcing conversational styles, also known as AI-sycophancy. Although this pattern arises from training objectives that reward user satisfaction over accuracy, it may become problematic when interacting with user prompts that reflect negative social tendencies. Such responses risk amplifying harmful behavior rather than mitigating it. In this study, we examine how LLMs respond to user prompts expressing varying degrees of Dark Triad traits (Machiavellianism, Narcissism, and Psychopathy) using a curated dataset. Our analysis reveals differences across models, whereby all models predominantly exhibit corrective behavior, while showing reinforcing output in certain cases. Model behavior also depends on the severity level and differs in the sentiment of the response. Our findings raise implications for designing safer conversational systems that can detect and respond appropriately when users escalate from benign to harmful requests.
format Preprint
id arxiv_https___arxiv_org_abs_2603_04299
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle The Company You Keep: How LLMs Respond to Dark Triad Traits
Lu, Zeyi
Henestrosa, Angelica
Chizhov, Pavel
Yamshchikov, Ivan P.
Computation and Language
J.4; K.4.1; K.4.2; I.2.7; I.2.0
Large Language Models (LLMs) often exhibit highly agreeable and reinforcing conversational styles, also known as AI-sycophancy. Although this pattern arises from training objectives that reward user satisfaction over accuracy, it may become problematic when interacting with user prompts that reflect negative social tendencies. Such responses risk amplifying harmful behavior rather than mitigating it. In this study, we examine how LLMs respond to user prompts expressing varying degrees of Dark Triad traits (Machiavellianism, Narcissism, and Psychopathy) using a curated dataset. Our analysis reveals differences across models, whereby all models predominantly exhibit corrective behavior, while showing reinforcing output in certain cases. Model behavior also depends on the severity level and differs in the sentiment of the response. Our findings raise implications for designing safer conversational systems that can detect and respond appropriately when users escalate from benign to harmful requests.
title The Company You Keep: How LLMs Respond to Dark Triad Traits
topic Computation and Language
J.4; K.4.1; K.4.2; I.2.7; I.2.0
url https://arxiv.org/abs/2603.04299