OpenOneRec Technical Report

• URL: http://arxiv.org/abs/2512.24762v1
• Date: Wed, 31 Dec 2025 10:15:53 GMT
• Title: OpenOneRec Technical Report
• Authors: Guorui Zhou, Honghui Bao, Jiaming Huang, Jiaxin Deng, Jinghao Zhang, Junda She, Kuo Cai, Lejian Ren, Lu Ren, Qiang Luo, Qianqian Wang, Qigen Hu, Rongzhou Zhang, Ruiming Tang, Shiyao Wang, Wuchao Li, Xiangyu Wu, Xinchen Luo, Xingmei Wang, Yifei Hu, Yunfan Wu, Zhanyu Liu, Zhiyang Zhang, Zixing Zhang, Bo Chen, Bin Wen, Chaoyi Ma, Chengru Song, Chenglong Chu, Defu Lian, Fan Yang, Feng Jiang, Hongtao Cheng, Huanjie Wang, Kun Gai, Pengfei Zheng, Qiang Wang, Rui Huang, Siyang Mao, Tingting Gao, Wei Yuan, Yan Wang, Yang Zhou, Yi Su, Zexuan Cheng, Zhixin Ling, Ziming Li,
• Abstract summary: OneRec series has successfully unified the fragmented recommendation pipeline into an end-to-end generative framework.<n>OneRec Foundation (1.7B and 8B), a family of models establishing new state-of-the-art (SOTA) results across all tasks in RecIF-Bench.<n>When transferred to the Amazon benchmark, our models surpass the strongest baselines with an average 26.8% improvement in Recall@10 across 10 diverse datasets.
• Score: 99.17075873619352
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: While the OneRec series has successfully unified the fragmented recommendation pipeline into an end-to-end generative framework, a significant gap remains between recommendation systems and general intelligence. Constrained by isolated data, they operate as domain specialists-proficient in pattern matching but lacking world knowledge, reasoning capabilities, and instruction following. This limitation is further compounded by the lack of a holistic benchmark to evaluate such integrated capabilities. To address this, our contributions are: 1) RecIF Bench & Open Data: We propose RecIF-Bench, a holistic benchmark covering 8 diverse tasks that thoroughly evaluate capabilities from fundamental prediction to complex reasoning. Concurrently, we release a massive training dataset comprising 96 million interactions from 160,000 users to facilitate reproducible research. 2) Framework & Scaling: To ensure full reproducibility, we open-source our comprehensive training pipeline, encompassing data processing, co-pretraining, and post-training. Leveraging this framework, we demonstrate that recommendation capabilities can scale predictably while mitigating catastrophic forgetting of general knowledge. 3) OneRec-Foundation: We release OneRec Foundation (1.7B and 8B), a family of models establishing new state-of-the-art (SOTA) results across all tasks in RecIF-Bench. Furthermore, when transferred to the Amazon benchmark, our models surpass the strongest baselines with an average 26.8% improvement in Recall@10 across 10 diverse datasets (Figure 1). This work marks a step towards building truly intelligent recommender systems. Nonetheless, realizing this vision presents significant technical and theoretical challenges, highlighting the need for broader research engagement in this promising direction.

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