Glossary
World model
A world model is an AI system that learns, generates, or simulates a representation of an environment so it can predict, create, navigate, or reason about that environment.
Simple meaningAI model of an environment
Used forGeneration, prediction, planning
Branches3D worlds, simulators, physical AI
RelatedSpatial AI
Definition
A world model is an AI system that represents an environment and can use that representation to generate, predict, simulate, navigate, or plan.
In creator tools, a world model may generate an explorable 3D scene. In robotics, a world model may predict how the physical world changes in response to actions.
Examples
- Marble generates persistent, explorable 3D environments.
- Echo-2 generates physically grounded 3D-consistent scenes.
- Genie 3 focuses on real-time interactive world simulation.
- Cosmos and V-JEPA 2 focus on physical AI and robot reasoning.
FAQ
Is a world model the same as a 3D model?
No. A 3D model is a specific asset. A world model is an AI system that can generate, represent, or simulate environments.