ScriptsMar 29, 2026·2 min read

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.

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Quick Use

Use it first, then decide how deep to go

This block should tell both the user and the agent what to copy, install, and apply first.

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

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 collection.


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).


🙏

Source & Thanks

Created by HPC-AI Tech. Licensed under Apache 2.0. Open-Sora — ⭐ 28,800+

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