Politeness in prompts boosts average LLM response quality by up to 11% but the benefit is language- and model-dependent, with English favoring courteous tones, Hindi deferential ones, and Spanish assertive ones.
The influence of prompt politeness on response quality in large language models,
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No Universal Courtesy: A Cross-Linguistic, Multi-Model Study of Politeness Effects on LLMs Using the PLUM Corpus
Politeness in prompts boosts average LLM response quality by up to 11% but the benefit is language- and model-dependent, with English favoring courteous tones, Hindi deferential ones, and Spanish assertive ones.