SRFT: A Single-Stage Method with Supervised and Reinforcement Fine-Tuning for Reasoning - Fu, Yuqian; Chen, Tinghong; Chai, Jiajun; Wang, Xihuai; Tu, Songjun; Yin, Guojun; Lin, Wei; Zhang, Qichao; Zhu, Yuanheng; Zhao, Dongbin (International Conference on Learning Representations, 2026)