A world model represents entities, spatial relationships, dynamics and possible future states of an environment. It can help an AI system predict what may happen after an action.
Generative world models can produce navigable visual environments that respond to user commands. Coherence over time matters because objects and rules should remain consistent as the viewpoint or action changes.
ELI5
A world model is an AI's simplified picture of how things work and change. It helps the system guess what may happen next when an object moves or an action is taken.
For example, a useful video model should understand that a rolling ball can hit a cup and knock it over, not just draw attractive frames. That prediction can make motion more believable, but the model may still fail when the scene contains unusual physics or events it has not learned.
What can a world model represent?
It can represent objects, space, motion, cause and effect, actions and likely future states.
Why is coherence important in a generated world?
Users need objects, locations and consequences to remain consistent so navigation and actions have understandable effects.
