Blog No Token Left Behind: Demystifying Token-In-Token-Out in Miles In agentic RL, a rollout is not a single generation. It is a chain of model calls, tool outputs, harness messages, and resumed generations. Token-In-Token-Out (TITO) is a design principle that address... Miles Team: Jiajun Li, Yanbin Jiang, Mao Cheng, Shi Dong, Yusheng Su, Yueming Yuan, Zhichen Zeng, Banghua Zhu