DiffusionART · HunyuanVideo
Paper · Code · Project Page · Demo
HunyuanVideo-13B fine-tuned with DiffusionART, using temporal alignment, visual quality and motion quality rewards at 7:2:1, with a pretrained-reference MSE regularizer (β = 0.1).
This repository contains the full transformer weights, not a LoRA or a complete pipeline. The inference entry below downloads the base model's VAE and text encoders automatically.
Inference
Use the included infer.py. Expand the setup once, then run the example from the same directory.
Linux, Python 3.12, a CUDA 12.1-compatible driver and toolkit (nvcc), and
approximately 100 GiB of available GPU memory and disk space for the verified
default path. The installer uses a pinned public DanceGRPO inference runtime.
export RUN_DIR="${RUN_DIR:-$PWD/diffusionart-t2v-demo}"
export HF_HOME="$RUN_DIR/cache/hf"
export PIP_CACHE_DIR="$RUN_DIR/pip-cache"
export TMPDIR="$RUN_DIR/tmp"
export XDG_CACHE_HOME="$RUN_DIR/xdg-cache"
mkdir -p "$RUN_DIR" "$HF_HOME" "$PIP_CACHE_DIR" "$TMPDIR" "$XDG_CACHE_HOME"
cd "$RUN_DIR"
python3.12 -m venv bootstrap
bootstrap/bin/python -m pip install 'huggingface-hub==0.26.1'
bootstrap/bin/huggingface-cli login
bootstrap/bin/python - <<'PY'
from huggingface_hub import snapshot_download
snapshot_download(
"vanzl/DiffusionART-HunyuanVideo-7-2-1",
revision="b9f83d8fc677be078cf20e75e2149a5f69059220",
allow_patterns=["infer.py", "install.sh", "requirements-inference.txt"],
local_dir="release",
)
PY
bash release/install.sh "$RUN_DIR/venv" "$RUN_DIR/runtime"
The fixed revision preserves the released weights and inference entry. Hugging Face login is used by that entry even though this model is public.
venv/bin/python - <<'PY'
import runpy
import sys
import torch
# Use the attention backend from the successful inference checks.
torch.backends.cuda.enable_cudnn_sdp(False)
sys.argv = [
"infer.py",
"--revision", "b9f83d8fc677be078cf20e75e2149a5f69059220",
"--prompt", "A white horse gallops through shallow water along a sunlit beach.",
"--output", "diffusionart.mp4",
"--cache-dir", "cache",
]
runpy.run_path("release/infer.py", run_name="__main__")
PY
Defaults: 640×640 · 53 frames · 8 FPS · 30 sampling steps.
The script uses the verified shift, guidance, precision and VAE settings.
Change --prompt and --output for another video; an existing output is never overwritten.
Examples
Selected outputs from this model. See the Demo for the full gallery and pretrained comparisons.
License
Subject to the Tencent Hunyuan Community License and Notice. Training provenance and weight hashes are recorded in release.json.