ByteDance has released UI-TARS, a series of native GUI agent models designed to enhance automated interactions. The models integrate perception, reasoning, grounding, and memory into a unified system. Available in three sizes—2B, 7B, and 72B parameters—UI-TARS aims to outperform existing frameworks, achieving state-of-the-art results across more than 10 benchmarks through improved perception and iterative training techniques. The model is licensed under Apache 2.0, making it accessible for further development and research.