Xpertbench: Expert Level Tasks with Rubrics-Based Evaluation. - Xue Liu; Xin Ma; Yuxin Ma; Yongchang Peng; Duo Wang; Zhoufutu Wen; Ge Zhang 009; Kaiyuan Zhang; Xinyu Chen; Yida Ding; Tianci He; Jiani Hou; et al. (CoRR, 2026)