Length Value Model: Scalable Value Pretraining for Token-Level Length Modeling. - Zhen Zhang; Changyi Yang; Zijie Xia; Zhen Yang; Chengzhi Liu; Zhaotiao Weng; Yepeng Liu; Haobo Chen; Jin Pan; Chenyang Zhao; Yuheng Bu; Alkesh Patel; et al. (CoRR, 2026)