README.md

---
license: unknown
task_categories:
  - text-to-video
tags:
  - video-generation
  - distillation
  - dmd2
  - repa
---

# repa_vs_dmd2

Qualitative comparison of two 4-step distilled video generators: a **DMD2** baseline
and the same setup with a **REPA loss** added on top of the DMD2 objective.

Both models were sampled on the prompts of **MovieGen Video Bench (extended)**, with
four seeds per prompt, so the two archives are seed- and prompt-aligned: the same
file name in each archive corresponds to the same prompt and the same seed.

## Contents

| File | Method | Videos |
| --- | --- | --- |
| `video_Repa_dmd2.tar.gz` | DMD2 loss (baseline) | 280 |
| `video_Repa_1k4.tar.gz` | DMD2 + REPA loss | 280 |

Each archive extracts to:

```
video_Repa_{dmd2,1k4}/
  MovieGenVideoBench_extended/
    student_step4_{prompt_index}_seed_student_{seed}.mp4
```

- `prompt_index` — 0-based index of the prompt in the MovieGen Video Bench (extended)
  prompt list (line `prompt_index + 1` of the prompt file).
- `seed` — 1 through 4.
- `student_step4` — the 4-step student sampler.

The prompt list itself is **not** included in this dataset; index into your own copy of
`MovieGenVideoBench_extended.txt` to recover the text for a given `prompt_index`.

## Usage

```bash
huggingface-cli download csusupergear/repa_vs_dmd2 --repo-type dataset --local-dir .
tar -xzf video_Repa_dmd2.tar.gz
tar -xzf video_Repa_1k4.tar.gz
```

To compare a single prompt across both methods:

```bash
# prompt 17, all four seeds, both methods
ls video_Repa_dmd2/MovieGenVideoBench_extended/student_step4_17_seed_student_*.mp4
ls video_Repa_1k4/MovieGenVideoBench_extended/student_step4_17_seed_student_*.mp4
```

## Notes

The archives are gzipped tarballs of already-compressed MP4 files, so gzip provides
essentially no size reduction — they exist to bundle 280 files into one download, not
to save space. The video bitstreams are byte-identical to the originals.