Author

Wataru Toyokawa

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Preprint Aug 2026

Emergence of Reputation-Based Cooperation in LLM Agents

Can cooperation among large language model (LLM) agents be evolutionarily stable against free-rider invasion? We study an indirect reciprocity donation game where LLM agents observe behavioral traces and donate on a continuous scale. Strategies, represented as natural language prompts, evolve through cultural transmiss...

Kazuya Horibe, Kenji Itao, Wataru Toyokawa · 0 citations