How Susceptible are LLMs to Influence in Prompts?

• URL: http://arxiv.org/abs/2408.11865v1
• Date: Sat, 17 Aug 2024 17:40:52 GMT
• Title: How Susceptible are LLMs to Influence in Prompts?
• Authors: Sotiris Anagnostidis, Jannis Bulian,
• Abstract summary: Large Language Models (LLMs) are highly sensitive to prompts, including additional context provided therein. We study how an LLM's response to multiple-choice questions changes when the prompt includes a prediction and explanation from another model. Our findings reveal that models are strongly influenced, and when explanations are provided they are swayed irrespective of the quality of the explanation.
• Score: 6.644673474240519
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Large Language Models (LLMs) are highly sensitive to prompts, including additional context provided therein. As LLMs grow in capability, understanding their prompt-sensitivity becomes increasingly crucial for ensuring reliable and robust performance, particularly since evaluating these models becomes more challenging. In this work, we investigate how current models (Llama, Mixtral, Falcon) respond when presented with additional input from another model, mimicking a scenario where a more capable model -- or a system with access to more external information -- provides supplementary information to the target model. Across a diverse spectrum of question-answering tasks, we study how an LLM's response to multiple-choice questions changes when the prompt includes a prediction and explanation from another model. Specifically, we explore the influence of the presence of an explanation, the stated authoritativeness of the source, and the stated confidence of the supplementary input. Our findings reveal that models are strongly influenced, and when explanations are provided they are swayed irrespective of the quality of the explanation. The models are more likely to be swayed if the input is presented as being authoritative or confident, but the effect is small in size. This study underscores the significant prompt-sensitivity of LLMs and highlights the potential risks of incorporating outputs from external sources without thorough scrutiny and further validation. As LLMs continue to advance, understanding and mitigating such sensitivities will be crucial for their reliable and trustworthy deployment.

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