LLM-Auction: Generative Auction towards LLM-Native Advertising

Fuente: arXiv
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Hauptverfasser: Zhao, Chujie, Hu, Qun, Song, Shiping, Chen, Dagui, Zhu, Han, Xu, Jian, Zheng, Bo
Format: Preprint
Veröffentlicht: 2025
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author Zhao, Chujie
Hu, Qun
Song, Shiping
Chen, Dagui
Zhu, Han
Xu, Jian
Zheng, Bo
author_facet Zhao, Chujie
Hu, Qun
Song, Shiping
Chen, Dagui
Zhu, Han
Xu, Jian
Zheng, Bo
contents The commercialization of LLM applications is the next frontier in online advertising, with LLM-native advertising emerging as a promising paradigm by integrating ads into LLM-generated content. However, classic mechanisms are no longer applicable in this setting where the auction object is shifted from discrete ad slots to distributions over LLM outputs, and existing methods are impractical in industrial scenarios due to ignored externalities or high inference costs. To address these issues, we propose LLM-Auction, the first learning-based generative auction mechanism that integrates auction and generation. By formulating the allocation as preference alignment between LLM outputs and a mechanism objective that balances advertisers' value and user experience, we optimize the LLMs to inherently model allocation externalities without extra inference cost. Theoretically, we identify the allocation monotonicity and continuity of LLM-Auction, and prove that a simple first-price payment rule exhibits favorable incentive properties. Furthermore, we build an LLM-as-a-judge simulation environment for quantitative evaluation, and experiments demonstrate that LLM-Auction achieves the state-of-the-art allocation efficiency while satisfying key mechanism properties.
format Preprint
id arxiv_https___arxiv_org_abs_2512_10551
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle LLM-Auction: Generative Auction towards LLM-Native Advertising
Zhao, Chujie
Hu, Qun
Song, Shiping
Chen, Dagui
Zhu, Han
Xu, Jian
Zheng, Bo
Computer Science and Game Theory
Artificial Intelligence
Machine Learning
The commercialization of LLM applications is the next frontier in online advertising, with LLM-native advertising emerging as a promising paradigm by integrating ads into LLM-generated content. However, classic mechanisms are no longer applicable in this setting where the auction object is shifted from discrete ad slots to distributions over LLM outputs, and existing methods are impractical in industrial scenarios due to ignored externalities or high inference costs. To address these issues, we propose LLM-Auction, the first learning-based generative auction mechanism that integrates auction and generation. By formulating the allocation as preference alignment between LLM outputs and a mechanism objective that balances advertisers' value and user experience, we optimize the LLMs to inherently model allocation externalities without extra inference cost. Theoretically, we identify the allocation monotonicity and continuity of LLM-Auction, and prove that a simple first-price payment rule exhibits favorable incentive properties. Furthermore, we build an LLM-as-a-judge simulation environment for quantitative evaluation, and experiments demonstrate that LLM-Auction achieves the state-of-the-art allocation efficiency while satisfying key mechanism properties.
title LLM-Auction: Generative Auction towards LLM-Native Advertising
topic Computer Science and Game Theory
Artificial Intelligence
Machine Learning
url https://arxiv.org/abs/2512.10551