Tier 2 Restricted open-weight
What the publisher claims: open source, open weights
The one-liner: The image JEPA pioneer, under a non-commercial license.
The six questions
Weights ungated on Hugging Face.
CC-BY-NC 4.0 on both code and weights bars commercial use.
Standard PyTorch, runs on user hardware.
Method paper published; training data (ImageNet) and pipeline not packaged for reproduction.
Paper-level detail only; no recipe equivalent to a full release.
Meta's I-JEPA training and evaluation code is public and takes outside issues and the occasional PR, but the JEPA research agenda and every release are decided inside FAIR.
License
CC-BY-NC 4.0 (code and weights) — license source ↗
- Non-commercial use only
What is actually released
- training/eval code
- ViT-H/14 weights (ungated on HF)
Why it matters
Shows the original JEPA release was open-access, not open source — the license moved before the architecture became famous.
Sources
Derived from the openness dataset behind But Is It Open? — snapshot 2026-11-07 ↗. Scores are qualitative readings of the cited evidence, not verdicts; tier measures openness, not intelligence.