Praxis-1
Early access only as of 2026-10-03; Runway says the weights will be released openly 'in the coming months' (tracked in data/upcoming/2026-10-01-runway-praxis-1-open-weights.md). Parameter count, license and Hugging Face id not yet published. Runway names transparent materials and deformable cloth as weak spots.
- Input
- video, image, text
- Output
- action
- License
- not yet stated (open weights promised 'in the coming months')
- Verified
- 2026-10-03
How to call it
| Provider | Model id | Endpoint / URL | Docs |
|---|---|---|---|
| Runway early access (request form) | — | runway.com/research/introducing-praxis-1 | — |
Notable capabilities (3)
- World action model pretrained on web video: A generalist robot policy built on Runway's large-scale video pretraining; Runway reports that after fine-tuning, policies pretrained on web video and on teleoperated robot video reached nearly the same placement error (16.1 cm vs 16.0 cm over 93 evaluation pairs). source
- Cross-embodiment policy: One policy for bimanual rigs, 6-DoF arms and mobile bases without retraining; early partners Noble Machines, Standard Bots and Ultra run it on their own hardware. source
- Policy evaluation inside a world model: Runway says simulating robot policies inside its world model predicted real-world results with 0.95 correlation. source
Runway's first robotics model, announced around 2026-09-30 by Head of Robotics Andy Chen. Set open_weights: true and add the Hugging Face id when the weights ship.
Sources: Runway Research: Introducing Praxis-1, The Robot Report, Runway on X.
Timeline entry
- Runway introduces Praxis-1, an open-weight 'world action model' that turns video pretraining into robot control ★★★
Around Sept 30, 2026 Runway introduced Praxis-1, its first world action model for robotics. It builds on the video pretraining behind Runway's general world models and gives one policy for many robot bodies (bimanual rigs, 6-DoF arms, mobile bases) without retraining. Early partners are Noble…