[Paper] WebSailor-V2: Bridging the Chasm to Proprietary Agents via Synthetic Data and Scalable Reinforcement Learning
WebSailor-V2 marks a significant leap in autonomous AI agents, narrowing the gap between open-source and proprietary deep research systems. This 30B parameter model outperforms larger counterparts on challenging benchmarks through innovative data generation and reinforcement learning techniques. The researchers developed SailorFog-QA-V2, a dataset built on a complex knowledge graph, and implemented a dual-environment approach for training. The model achieves impressive scores on BrowseComp and Humanity’s Last Exam, rivaling top proprietary agents. By adopting the ReAct framework and focusing on strong fundamentals, WebSailor-V2 demonstrates that smaller, efficient models can match the capabilities of massive proprietary systems. This breakthrough democratizes access to advanced AI research tools and provides a template for future developments in general artificial intelligence.










