A world model is an internal representation of how the world works. It allows an intelligent system—such as a human or an artificial intelligence—to understand, predict, and interact with its environment.
In simple terms, a world model helps answer questions like:
In AI, world models are used to simulate environments, make predictions, and improve decision-making without needing constant real-world interaction.
Humans also use world models naturally, based on experience and learning, to navigate daily life and solve problems.