{"type":"ScholarlyArticle","title":"Mechanism Design for Large Language Models (Extended Abstract)","authors":[{"name":"Paul Dütting","slug":"paul-dutting","given":"Paul","family":"Dütting","affiliation":""},{"name":"Vahab Mirrokni","slug":"vahab-mirrokni","given":"Vahab","family":"Mirrokni","affiliation":""},{"name":"Renato Paes Leme","slug":"renato-paes-leme","given":"Renato","family":"Paes Leme","affiliation":""},{"name":"Haifeng Xu","slug":"haifeng-xu","given":"Haifeng","family":"Xu","affiliation":""},{"name":"Song Zuo","slug":"song-zuo","given":"Song","family":"Zuo","affiliation":""}],"abstract":"We investigate auction mechanisms for AI-generated content, focusing on applications like ad creative generation. In our model, agents' preferences over stochastically generated content are encoded as large language models (LLMs). \r\n\r\nWe propose an auction format that operates on a token-by-token basis, and allows LLM agents to influence content creation through single dimensional bids. We formulate two desirable incentive properties and prove their equivalence to a monotonicity condition on output aggregation. This equivalence enables a second-price rule design, even absent explicit agent valuation functions. Our design is supported by demonstrations on a publicly available LLM.","doi":"10.24963/ijcai.2025/1210","url":"https://ijcai.org/proceedings/2025/1210","pdf":"https://ijcai.org/proceedings/2025/1210.pdf","markdown":"https://ijcai.org/proceedings/2025/1210.md","bibtex":"https://ijcai.org/proceedings/2025/bibtex/1210","volume":{"slug":"2025","title":"Proceedings of the Thirty-Fourth International Joint Conference on Artificial Intelligence","short_title":"IJCAI 2025","url":"https://ijcai.org/proceedings/2025/","year":2025,"location":"Montreal, Canada","dates":"16-22 August 2025","editors":"James Kwok","isbn":"978-1-956792-06-5","publisher":"International Joint Conferences on Artificial Intelligence Organization","doi_prefix":"10.24963/ijcai.2025"},"section":"Sister Conferences Best Papers","track":"Sister Conferences Best Papers","number":1210,"pages":{"first":10885,"last":10890},"keywords":["Sister Conferences Best Papers: Multidisciplinary Topics and Applications","Sister Conferences Best Papers: Game Theory and Economic Paradigms","Sister Conferences Best Papers: Machine Learning"],"videos":[],"references":[],"license_note":"Copyright International Joint Conferences on Artificial Intelligence."}