# Open-Sora — Open-Source Text-to-Video Generation

> Open-source alternative to Sora by HPC-AI Tech. Generate videos from text prompts with an 11B parameter model. Apache 2.0 licensed. 28,800+ stars.

## Install

Save as a script file and run:

## Quick Use

```bash
pip install opensora
# Generate a video from text
python scripts/inference.py --prompt "A cat playing piano" --resolution 480p
```

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## Intro

Open-Sora is an open-source video generation framework aiming to democratize efficient video production. Built by HPC-AI Tech, it features an 11B parameter model capable of text-to-video and image-to-video generation. Unlike closed-source alternatives (Sora, Runway), Open-Sora is fully trainable and customizable. 28,800+ GitHub stars.

**Best for**: AI researchers, video generation startups, developers building custom video generation pipelines
**Works with**: Python, PyTorch, NVIDIA GPUs
**Setup time**: 15 minutes (requires GPU)

Part of the [Video AI Toolkit](https://tokrepo.com/en/workflows/c13f8a88-c947-47b6-9364-5f1a43e5b3ea) collection.

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## Key Capabilities

- **Text-to-video**: Generate videos from text descriptions
- **Image-to-video**: Animate static images
- **Variable resolution**: 240p to 720p+
- **Variable duration**: 2s to 16s clips
- **Fully trainable**: Fine-tune on your own data
- **Apache 2.0**: Commercially usable

## Architecture

Based on DiT (Diffusion Transformer) with spatial-temporal attention, trained on large-scale video datasets. Uses a VAE for video encoding and a text encoder for prompt understanding.

### FAQ

**Q: What is Open-Sora?**
A: An open-source text-to-video generation framework with an 11B parameter model, designed as an accessible alternative to OpenAI's Sora. 28,800+ GitHub stars, Apache 2.0 licensed.

**Q: Is Open-Sora free?**
A: Yes. Open-Sora is Apache 2.0 licensed. You need your own GPU hardware for inference (recommended: NVIDIA A100 or equivalent).

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## Source & Thanks

> Created by [HPC-AI Tech](https://github.com/hpcaitech). Licensed under Apache 2.0.
> [Open-Sora](https://github.com/hpcaitech/Open-Sora) — ⭐ 28,800+

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Source: https://tokrepo.com/en/workflows/ff30d766-6654-4886-b631-e45e203f3a5e
Author: Script Depot