Praxis 1 Is Now Available

Runway released Praxis-1, a 27-billion-parameter video-action world model for robot arms. The weights, inference code and LoRA fine-tuning code are published under Apache 2.0, which permits commercial use. Runway reports a score of 46.2% on RoboLab-120 and says that is ahead of the other open models it lists, including VLA baselines such as pi0.5. Its technical report describes how the model turns video pretraining into robot control, with fine-tuning to new robots and offline evaluation. Robotics developers can run full or LoRA training on their own hardware rather than depending on a hosted service. The benchmark figures are Runway's own and have not yet been reproduced independently.