How to install and configure the Open-Sora runtime environment?

2025-08-25

1.3 K

Installing Open-Sora requires a step-by-step process to complete the environment configuration:

Creating a Python Virtual Environment: Recommended to use Python 3.10, create a standalone environment via conda to avoid dependency conflicts
```
conda create -n opensora python=3.10
conda activate opensora
```

Cloning Codebase: Getting project source code from GitHub

git clone https://github.com/hpcaitech/Open-Sora
cd Open-Sora

Installing core dependencies: Ensure that PyTorch version ≥ 2.4.0 is required
```
pip install -v .
```
Recommended in development mode:
```
pip install -v -e .
```
Accelerated library installation: Install performance optimization libraries according to CUDA version
```
pip install xformers==0.0.27.post2 --index-url ...
pip install flash-attn --no-build-isolation
```
Model Download: get pre-trained weights from Hugging Face or ModelScope
```
huggingface-cli download hpcai-tech/Open-Sora-v2 --local-dir ./ckpts
```

After the installation is complete, you can access it via thepython -c "import opensora; print(opensora.__version__)"Verify that it was successful.

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