world-models
2 free lessons tagged world-models across AI. Each one is a short sequence of focused steps with narration and a five-question quiz at the end — take them in any order, no signup required.
Streams, Actions, Rewards, and Thinking That Is Not Ours
The paper is concrete about what an experiential agent would differ on, and names four: it lives in a continuous stream rather than episodes, acts in the world rather than emitting text, takes rewards from grounded signals rather than human judgement, and plans in terms it worked out rather than imitating human chain of thought. This lesson works through each.
From I-JEPA to V-JEPA: World Models and Planning
The JEPA idea becomes concrete in I-JEPA on images and V-JEPA 2 on video. This lesson covers the multi-block masking that makes I-JEPA work, how an action-conditioned video model becomes a world model, and how predicting representations enables planning by model-predictive control instead of a fixed policy.