A research study examines how humans behave differently when playing strategic games against LLMs versus other humans. Using a monetarily-incentivized p-beauty contest experiment, researchers found that humans choose significantly lower numbers (gravitating toward the Nash equilibrium of zero) when competing against LLMs. This shift is driven by subjects with high strategic reasoning ability, who attribute greater rationality and a propensity for cooperation to LLMs. The findings have implications for mechanism design in mixed human-LLM systems.
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