JEPA, from papers to working systems.

- Learn the principles, trace the implementation, and test what changes when a predictive model has to plan.

JEPA4Japan is an independent multilingual learning hub for JEPA, world models, frontend engineering, and the work required to turn ideas into reliable systems.

Begin with the LeVJEPA course and follow one video encoder from LeCun's research program through SIGReg, block-causal attention, code, evidence, and reproducible experiments. Or continue into LeWorldModel to study action-conditioned dynamics and planning.

Tutorials, research notes, essays, and project records keep the path from first principles to implementation visible, together with the evidence, assumptions, and limits behind each claim.