SolitaryThinker
e7d6c40860
Ports GAIR-NLP/daVinci-MagiHuman's 15B-param joint-AV DiT into FastVideo: text + video + audio joint denoise in one flat token stream, 32-step FlowUniPC w/ CFG=2, Wan 2.2 TI2V-5B video VAE, Stable Audio Open 1.0 audio VAE (first-class port at fastvideo/models/vaes/oobleck.py, no runtime diffusers import), T5-Gemma 9B UL2 text encoder, auto-muxed mp4 with h264 video + aac stereo audio. Parity tests all pass on converted weights: DiT (diff_median=2.6e-3), text encoder (exact), video VAE (8e-4), audio VAE (exact), pipeline latent (5e-2). See .agents/skills/add-model/REVIEW.md for porting procedure + open review items.
Local Tests
Local-only parity, smoke, and component tests for FastVideo model ports. They compare FastVideo against the official reference implementations and are skipped in CI; run them locally on a single GPU (or CPU where noted).
For the CI-backed test suite, see fastvideo/tests/.
Layout
Tests are organized by model family, one directory per port. Each family
directory follows the layout produced by the
add-model-prep skill:
tests/local_tests/<family>/
├── README.md # reference assets, setup, test inventory
├── __init__.py
└── test_<family>_<component>_*.py
Families
| Family | Workload | Dir |
|---|---|---|
| Hunyuan GameCraft | T2V / I2V | gamecraft/ |
| GEN3C | T2V | gen3c/ |
| Kandinsky-5 | T2V | kandinsky5/ |
| LTX-2 | T2V (+ audio) | ltx2/ |
| Stable Diffusion 3.5 | T2I | sd35/ |
| Stable Audio Open 1.0 | T2A | stable_audio/ |
| Wan2.2 | I2V | wan22/ |
Running a family
pytest tests/local_tests/<family>/ -v -s
See each family's README.md for setup (clones, weights, env vars, gated
tokens) and the per-component parity coverage.
Adding a new family
Run the add-model-prep
skill from the FastVideo repo root. It scaffolds the family directory and
README.md and stages reference clones + weights. (In-progress ports may also
add a PORT_STATUS.md from the same skill template; remove it once the port
lands.)