Model reference · open weights

OpenSora-STDiT-HQ-16x512x512

Embeddings hpcai-tech Embeddings 1 build Open weights 14 dl/mo

OpenSora-STDiT-HQ-16x512x512 is an open-weight embedding model from hpcai-tech. OpenSora-STDiT-v1-HQ-16x512x512 (FP32) weighs 1.5 GB; the smallest configuration that runs it is RTX 3060 12 GB.

For self-hosting, compare this build's requirements below with the GPU you plan to rent.

  • OpenSora-STDiT-HQ-16x512x512 is a 761M parameter feature-extraction model developed by hpcai-tech for video generation.
  • It is part of the Open-Sora project, which aims to provide an open-source pipeline for producing high-quality video.
  • The model is released under the apache-2.0 licence and requires a VAE and text encoder to function.

Summary of the hpcai-tech/OpenSora-STDiT-v1-HQ-16x512x512 model card, 2026-10-01

What it is

Released byhpcai-tech
Released2024-03-20
Parameters761M
VRAM1.5 GB for the weights

What it runs on

Memory and cards for OpenSora-STDiT-v1-HQ-16x512x512 (FP32)

1.5 GBweights, file size
1.1 GBruntime overhead
CardRunsMemory
RTX 3060 12 GBfits11.6 GB
RTX 4060 Ti 16 GBfits15.4 GB
RTX 3090 24 GBfits23.4 GB
RTX 4090 24 GBfits23.4 GB
RTX 5090 32 GBfits31.0 GB
L40S 48 GBfits44.0 GB
A100 80 GBfits78.2 GB
H100 80 GBfits78.1 GB
RTX PRO 6000 Blackwell 96 GBfits93.8 GB
DGX Spark (GB10) 128 GB unifiedfits107 GB
H200 141 GBfits138 GB
B200 180 GBfits176 GB

From the model card

What hpcai-tech says about OpenSora-STDiT-HQ-16x512x512

Read the model card

Open-Sora: Democratizing Efficient Video Production for All

We present Open-Sora, an initiative dedicated to efficiently produce high-quality video and make the model, tools and contents accessible to all. By embracing open-source principles, Open-Sora not only democratizes access to advanced video generation techniques, but also offers a streamlined and user-friendly platform that simplifies the complexities of video production. With Open-Sora, we aim to inspire innovation, creativity, and inclusivity in the realm of content creation.

More details can be founded at Open-Sora GitHub.

📰 News

  • [2024.03.18] 🔥 We release Open-Sora 1.0, a fully open-source project for video generation. Open-Sora 1.0 supports a full pipeline of video data preprocessing, training with ColossalAI acceleration, inference, and more. Our provided checkpoints can produce 2s 512x512 videos with only 3 days training. [blog]
  • [2024.03.04] Open-Sora provides training with 46% cost reduction. [blog]

🛠 Usage

You can launch this video generation with this model in a Gradio application.

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

# launch gradio
python scripts/demo.py --model-type v1-HQ-16x512x512

If you want to use this STDiT model in code,

from transformers import AutoModel

stdit = AutoModel.from_pretrained("hpcai-tech/OpenSora-STDiT-v1-HQ-16x512x512")

Do note that this model alone cannot generate video, it should work alongside a vae model and a text encoder model like how we did in the demo.

Quoted from the model card on Hugging Face. The full card is behind the Hugging Face link above.

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