Runway Releases Praxis-1 World Action Model to Developers

Runway AI has officially released its new world action model for robotics, called Praxis-1. The software is now accessible to developers with open weights under the Apache 2.0 license, meaning it can be used for commercial purposes and adapted for custom hardware.

Built on Video Prediction

Praxis-1 is a 27 billion-parameter model that combines video prediction with physical actions. By training on vast amounts of video data, the system learns how objects move and how tasks unfold in the real world before it attempts to control physical machinery. This approach allows the model to anticipate what a scene should look like next and generate the precise motions needed to achieve that state.

Versatile Robot Control

The system has already been tested across multiple types of robotic hardware, including legged humanoids, six-axis industrial arms, and dual-arm warehouse systems. Developers can use techniques like low-rank adaptation to fit the model to their own specific equipment and tasks without retraining the entire system from scratch. Runway aims to push the software into real-world industrial environments to gather feedback and improve future iterations.

• Released with open weights under the Apache 2.0 license.
• Combines video foundation models with robotic actions.
• Tested on humanoids, single arms, and dual-arm robots.