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Open-Sora

github.com

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Spec score 7.3 #17 of 23 in Text-to-Video Generators

Spec sheet

Purpose
Open-Sora is an open-source project for producing high-quality video.Read 13 Oct 2026 · github.com
Support
The repository provides a contribution guideline for people wishing to contribute.Read 13 Oct 2026 · github.com
License
The repository identifies its license as Apache-2.0.Read 13 Oct 2026 · github.com
Commercial use
YesRead 19 Sep 2026 · github.com
Compute requirements
The README documents 768x768 generation using multi-GPU inference and reports benchmarks on H100/H800 GPUs.Read 13 Oct 2026 · github.com
Generation modes
The 11B model supports text-to-video and image-to-video generation.Read 12 Oct 2026 · github.com
Generation settings
Users can adjust aspect ratio and frame count; the documented frame counts follow 4k+1 and must be less than 129.Read 13 Oct 2026 · github.com
Hardware
The documented efficiency measurements use H100 and H800 GPUs, and 768x768 inference examples include multi-GPU execution.Read 12 Oct 2026 · github.com
Image-to-video
YesRead 19 Sep 2026 · github.com
Image-to-video input
Image-to-video generation accepts a prompt and a reference image.Read 12 Oct 2026 · github.com
Installation
The quickstart uses Python 3.10 and requires PyTorch 2.4.0 or later.Read 13 Oct 2026 · github.com
Model downloads
The README provides model download instructions for Hugging Face and ModelScope.Read 13 Oct 2026 · github.com
Model size
The repository describes Open-Sora 2.0 as an 11B model.Read 12 Oct 2026 · github.com
Motion scoring
Inference supports a motion score, and a dynamic motion-score evaluator is available after setting an OpenAI API key.Read 12 Oct 2026 · github.com
Project audience
The project says it aims to make video-generation models, tools, and implementation details accessible to all.Read 13 Oct 2026 · github.com
Prompt refinement
The project can use ChatGPT to refine prompts for text-to-video and image-to-video generation, with an OpenAI API key configured.Read 12 Oct 2026 · github.com
Prompt tools
The project documents prompt refinement with ChatGPT and dynamic motion-score evaluation using an OpenAI API key.Read 13 Oct 2026 · github.com
Requirements
The quickstart uses Python 3.10 and requires PyTorch 2.4.0 or later.Read 12 Oct 2026 · github.com
Resolutions
The 11B model supports 256px and 768px resolutions.Read 13 Oct 2026 · github.com
Text-to-video
YesRead 19 Sep 2026 · github.com
Text-to-video pipeline
For high-quality text-to-video, the project provides a text-to-image-to-video pipeline using the Flux text-to-image model.Read 12 Oct 2026 · github.com
Training resources
The repository links reports and instructions for training or fine-tuning a model and training and evaluating a video autoencoder.Read 13 Oct 2026 · github.com
Versions
The README says Open-Sora is under active development and maintains separate branches for different versions.Read 12 Oct 2026 · github.com
Video generation
The 11B model supports text-to-video and image-to-video generation.Read 13 Oct 2026 · github.com

Where Specifiction places it

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