A world model is a learned predictor that takes a current estimate of the world state (in abstract representation) and an imagined sequence of actions and predicts the resulting state of the world that will occur after those actions are taken, enabling planning without explicit reward signals.

definitionpending

Speaker

Yann LeCun

Evidence Quote

World model is given given a current estimate of the state of the world which is in an abstract representation space and given an action sequence that you imagine taking uh your world model predicts the the resulting state of the world that will um occur after you take that sequence of actions

Source

The Shape of AI to Come! Yann LeCun at AI Action Summit 2025DSAI by Dr. Osbert Tay
Created: 8/11/2026, 7:11:43 AM

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