ResearchBenchmarksWeb Search Agent on GAIA Avg@4Web Search Agent on GAIA Avg@4Follow57.9F1 (Lv.1)BranPO37.41242.73148.0553.369Feb 3, 2026Evaluation resultsMethodMethodLinksF1 (Lv.1)LasJ (Lv.1)F1 (Lv.2)LasJ (Lv.2)F1 (Lv.3)LasJ (Lv.3)Avg F1Avg LasJBranPOBase Model=Qwen3-4B-In...Base Model=Qwen3-4B-Instruct-25072026.0257.961.636.940.94.82.141.144.2GRPOBase Model=Qwen3-4B-In...Base Model=Qwen3-4B-Instruct-25072026.0253.557.136.838.56.12.139.541.3BranPOBase Model=Qwen2.5-7B-...Base Model=Qwen2.5-7B-Instruct2026.0241.241.126.928.43.6029.629.9GRPOBase Model=Qwen2.5-7B-...Base Model=Qwen2.5-7B-Instruct2026.0238.238.519.322.26024.925.8