Add SAGE model card and paper citation

README.md

@@ -1,3 +1,37 @@
 ---
-license: apache-2.0
+license: mit
+library_name: pytorch
+tags:
+  - robotics
+  - world-model
+  - planning
+  - pusht
+  - ogbench
+arxiv: 2607.17973
 ---
+
+# SAGE Checkpoints
+
+Official checkpoints for [SAGE: Subgoal-Conditioned Action Generation for Latent World Model Planning](https://arxiv.org/abs/2607.17973).
+
+## Files
+
+| File | Environment | Component |
+| --- | --- | --- |
+| `pusht_generator_epoch6.pt` | PushT | Subgoal generator |
+| `pusht_action_prior_epoch3.pt` | PushT | Action prior |
+| `cube_generator_epoch6.pt` | OGBench Cube | Subgoal generator |
+| `cube_action_prior_epoch3.pt` | OGBench Cube | Action prior |
+
+The accompanying code and usage instructions are available in the SAGE release package.
+
+## Citation
+
+```bibtex
+@article{cheng2026sage,
+  title={SAGE: Subgoal-Conditioned Action Generation for Latent World Model Planning},
+  author={Cheng, Letian and Zhang, Qi and Wang, Qixun and Wang, Yisen},
+  journal={arXiv preprint arXiv:2607.17973},
+  year={2026}
+}
+```