UI-Venus-1.5 Technical Report

The Veuns-Team has released UI-Venus-1.5, a unified GUI agent that sets new state-of-the-art performance on key benchmarks. It scored 69.6% on ScreenSpot-Pro, 75.0% on VenusBench-GD, and 77.6% on AndroidWorld, significantly outperforming previous models. The system uses a 10-billion-token Mid-Training stage, Online Reinforcement Learning, and Model Merging to create a single agent capable of robust navigation across web, mobile, and grounding domains in real-world scenarios.