Measuring and Improving Persuasiveness of Large Language Models

• URL: http://arxiv.org/abs/2410.02653v2
• Date: Sun, 6 Oct 2024 04:08:04 GMT
• Title: Measuring and Improving Persuasiveness of Large Language Models
• Authors: Somesh Singh, Yaman K Singla, Harini SI, Balaji Krishnamurthy,
• Abstract summary: We introduce PersuasionBench and PersuasionArena to measure the persuasiveness of generative models automatically. Our findings carry key implications for both model developers and policymakers.
• Score: 12.134372070736596
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: LLMs are increasingly being used in workflows involving generating content to be consumed by humans (e.g., marketing) and also in directly interacting with humans (e.g., through chatbots). The development of such systems that are capable of generating verifiably persuasive messages presents both opportunities and challenges for society. On the one hand, such systems could positively impact domains like advertising and social good, such as addressing drug addiction, and on the other, they could be misused for spreading misinformation and shaping political opinions. To channel LLMs' impact on society, we need to develop systems to measure and benchmark their persuasiveness. With this motivation, we introduce PersuasionBench and PersuasionArena, the first large-scale benchmark and arena containing a battery of tasks to measure the persuasion ability of generative models automatically. We investigate to what extent LLMs know and leverage linguistic patterns that can help them generate more persuasive language. Our findings indicate that the persuasiveness of LLMs correlates positively with model size, but smaller models can also be made to have a higher persuasiveness than much larger models. Notably, targeted training using synthetic and natural datasets significantly enhances smaller models' persuasive capabilities, challenging scale-dependent assumptions. Our findings carry key implications for both model developers and policymakers. For instance, while the EU AI Act and California's SB-1047 aim to regulate AI models based on the number of floating point operations, we demonstrate that simple metrics like this alone fail to capture the full scope of AI's societal impact. We invite the community to explore and contribute to PersuasionArena and PersuasionBench, available at https://bit.ly/measure-persuasion, to advance our understanding of AI-driven persuasion and its societal implications.

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