FlexLLM: Token-Level Co-Serving of LLM Inference and Finetuning with SLO Guarantees. - Gabriele Oliaro; Xupeng Miao; Xinhao Cheng; Vineeth Kada; Mengdi Wu; Ruohan Gao; Yingyi Huang; Remi Delacourt; April Yang; Yingcheng Wang; Colin Unger; Zhihao Jia (NSDI, 2026)