Shiqi Chen 0002 Tongyao Zhu Zian Wang Jinghan Zhang 0006 Kangrui Wang Siyang Gao Teng Xiao Yee Whye Teh Junxian He Manling Li Internalizing World Models via Self-Play Finetuning for Agentic RL. 2025 October abs/2510.15047 CoRR https://doi.org/10.48550/arXiv.2510.15047 db/journals/corr/corr2510.html#abs-2510-15047 streams/journals/corr