Ultra-FineWeb: Efficient Data Filtering and Verification for High-Quality LLM Training Data. - Yudong Wang; Zixuan Fu; Jie Cai; Peijun Tang; Hongya Lyu; Yewei Fang; Zhi Zheng; Jie Zhou 016; Guoyang Zeng; Chaojun Xiao; Xu Han 007; Zhiyuan Liu 001 (CoRR, 2025)

MiniCPM4: Ultra-Efficient LLMs on End Devices. - Chaojun Xiao; Yuxuan Li; Xu Han 007; Yuzhuo Bai; Jie Cai; Haotian Chen; Wentong Chen; Xin Cong; Ganqu Cui; Ning Ding 002; Shengda Fan; Yewei Fang; et al. (CoRR, 2025)