OpenGCUA: Toward a Fully Open Stack for Generalist Computer Use

Open full-stack framework for computer-use agents that combine visual and programmatic interfaces, moving observation and task-state decisions from the harness into the model itself. On OSWorld-v2 it improved scores for all eight evaluated models (adding +19.6 points to mean partial score and cutting reported steps per task by ~53%), with prompts, evaluation trajectories, a real-device harness and a cross-device SDK released.