Runway releases Praxis-1, a robot AI model, with open weights for developers

Runway released Praxis-1, its world action model for robots, on 11 November. Developers can download the model's weights and code under the Apache 2.0 licence, including for commercial use and for fine-tuning on their own hardware.

Runway first announced the model in September with partners Noble Machines, Standard Bots and Ultra, which have since run it on a legged humanoid, a six-axis industrial arm and a two-armed warehouse robot. Praxis-1 is a 27-billion-parameter model built on Runway's video models that predicts video and actions together.

According to Runway, Praxis-1 reached 46.2% success on the RoboLab-120 test across 1,200 runs and ranks fifth overall on the leaderboard. Andy Chen, head of robotics at Runway, said that on Noble Machines' humanoid the model learned to put wooden planks into a container after 30 minutes of examples and succeeded in all 15 tries.