Release Cosmos3-Nano S1/S3 checkpoints and model card
Release the evaluated Cosmos3-Nano S1 teacher (step 25,000) and S3 distilled model (EMA700), with matching metadata, SHA256SUMS, NVIDIA non-commercial license, OpenMDW1.1 notice and model card.
The complete nine-file bundle is uploaded and verified. Public metadata retains inference settings and omits internal run, source-commit and checkpoint-slot identifiers. Both FP32 exports match all 1,354 tensors in their native checkpoints; uploaded weight hashes and sizes match the verified exports. Existing Wan checkpoints and evaluation assets are unchanged.
DL3DV ours evaluation: 28 scored scenes, 9,619 held-out frames, six references, H100 80 GB BF16 inference and standard VGG LPIPS. S1: PSNR 19.1717, SSIM 0.6289, LPIPS 0.3591, FID 13.4716. S3: PSNR 19.5793, SSIM 0.6292, LPIPS 0.3479, FID 11.7503.
The model card keeps the S1/S3 checkpoint table and brief metadata/memory notes; full commands live in the source documentation. Merge the source release PR https://github.com/nv-tlabs/ArtiFixer/pull/22 before this PR so those documentation links resolve.