Core Viewpoint - Alibaba has open-sourced its first deep research agent model, Tongyi DeepResearch, which outperforms existing models like OpenAI's Deep Research and DeepSeek-V3.1 in various authoritative evaluation sets [1][3]. Data Strategy - The model's capability enhancement is attributed to a multi-stage data strategy designed to generate high-quality training data without relying on expensive manual annotations [4][5]. - The team introduced Agentic CPT for incremental pre-training, establishing a solid foundation for the agent [6]. - A systematic and scalable data synthesis scheme was developed to create a positive feedback loop for data generation [7]. Data Construction - An open-world knowledge memory was constructed using a wide range of knowledge documents, web crawler data, knowledge graphs, and trajectory data from post-training [8]. - Three types of action data were created based on diverse question styles and historical trajectory data, enabling extensive exploration of the reasoning-action space [9]. Post-training Data - The team developed a fully automated synthetic data generation scheme to produce datasets that surpass the quality of manual annotations [11][12]. - A new process was designed to extract information from real website data, ensuring the authenticity of data structures while increasing question complexity [14]. Reasoning Modes - Tongyi DeepResearch features both a native ReAct Mode and a Heavy Mode for handling complex multi-step research tasks [15][18]. - The IterResearch paradigm was created to deconstruct tasks into a series of research rounds, allowing the agent to maintain cognitive focus and high-quality reasoning [20]. Training Process - The training process was innovated to connect Agentic CPT, Agentic SFT, and Agentic RL, leading to a new paradigm for agent model training [25][27]. - The team emphasized the importance of data quality and training environment stability over algorithmic factors in the success of reinforcement learning projects [37][39]. Application Deployment - Tongyi DeepResearch has empowered multiple internal applications within Alibaba, including the Gaode travel agent, which integrates complex query capabilities into its app [42][43]. - A simulated training environment was created to address the high costs and inconsistencies associated with real-time web API development [44]. Legal AI Application - Tongyi Law Rui, a legal AI agent, aims to provide professional legal services, leveraging innovative agent architecture and iterative planning technology for complex reasoning tasks [46].