According to insiders with knowledge of the situation, Yu Bowen, who previously served as the head of post-training for the Qwen large model at Alibaba's Tongyi Laboratory, has recently joined ByteDance. At ByteDance, he will spearhead post-training initiatives for visual models and multimodal interactions within the Seed team. In March 2026, Alibaba's Tongyi Laboratory underwent an organizational reshuffle, resulting in the division of the Qwen team. Consequently, Yu Bowen's managerial purview was significantly reduced, and he encountered clashes over differing technical viewpoints. Additionally, the pressure from Alibaba's top management to assess commercialization prospects further deepened rifts within the team. On March 3, Yu Bowen tendered his resignation and departed the following day, with Zhou Hao assuming his duties. Yu Bowen initially joined Alibaba's DAMO Academy in 2022 as an 'Alibaba Star' and subsequently emerged as a pivotal figure in the Qwen team, taking on the role of post-training lead.