Big new paper nobody is talking about ‼️
🌎 Robot world models now have scaling laws. Meta trained an 8B-parameter JEPA on 15,000 hours of robot video to prove it.
RoboJEPA (FAIR at Meta + Mila) imagines the future in V-JEPA 2.1's feature space, then plans toward a single goal image. The authors call it the largest JEPA predictor trained to date.
- Trained on 23 public datasets: 12 robot embodiments, 15,022 hours of video, 6,692 of them with actions.
- Fit the scaling law on 22M–2B models and it accurately predicts the 4B and 8B results.
- Skills unlock in order as compute grows: moving the arm, holding an object, avoiding obstacles, and only past ~10^22 FLOPs, pushing objects.
- On a real Franka with no task fine-tuning, the 8B model grasps 67% of the time vs 5% for π0.5. Not apples-to-apples (goal image vs text), and π0.5 still wins pick-and-place, 53% vs 27%.
Why it matters: SCALING LAWS. You can forecast what more compute buys before you spend it.