Understand LeCun’s JEPA World Model in 160 Lines of Code

160行代码读懂LeCun的JEPA世界模型

A developer released the keon/jepa teaching repository with five JEPA variants implemented as standalone PyTorch files, ranging from 160 to 278 lines, depending only on PyTorch and torchvision; the post reports iJEPA runs on CIFAR-10 for 100 epochs and reaches 52.7% linear-probe accuracy, while V-JEPA, C-JEPA, and LeWorldModel use toy or synthetic datasets.

Why it matters: HKR-H/K/R pass via the 160-line JEPA hook, reproducible repo, and non-LLM world-model angle. It is a tutorial artifact, not a model or paper release, so it sits at the featured threshold.