Virtual try-on

OOTDiffusion

An early popular open try-on model: one version for upper-body garments, another for full-length outfits. Non-commercial license.

The last open version came out in Mar 2024. The family has not been updated for a long time: the model still works, but do not expect fixes or new sizes.

Developer
Xiao-i Research, China
First release
Feb 2024
Latest release
Mar 2024
Sizes
based on Stable Diffusion
License
Non-commercial onlyCC BY-NC-SA 4.0 (non-commercial use only)
Running
On your own serverNeeds a GPU
Industries
Retail and marketplaces, Science and research
Deploy on your server Hugging Face GitHub

What it does

  • Trying tops on a model photo
  • Full-length try-on: tops, bottoms, dresses
  • Fitting room prototype for testing

Where it is used

Online apparel retailMarketplacesRetail research departments

Hardware requirements

LaptopLaptop or regular PC, up to 8 GB of VRAM — smaller versions
no versions
1 GPUOne GPU with 16–80 GB — mid-size versions
fits
ClusterServer with several GPUs — flagship versions
no versions

Versions

  1. OOTDiffusion DC (в полный рост)
  2. OOTDiffusion HD (по пояс)

How to run it

On your own serverWeights are downloaded from Hugging Face and served with vLLM (load and API) or llama.cpp (modest hardware). The model then runs in a closed network with no per-request fees.Hugging Face
How much hardware you needCalculate the VRAM for the model size, context length and number of concurrent requests.Open the hardware calculator

I can set this up end to end: pick the model size, deploy it on your server and connect it to your systems.

Frequently asked questions

Can OOTDiffusion be used in a commercial project?

No. License: CC BY-NC-SA 4.0 (non-commercial use only). A commercial product needs a different model or a separate agreement with the rights holder.

What hardware does OOTDiffusion need?

At minimum: One GPU with 16–80 GB — mid-size versions. Without a GPU the model is not practical. You can calculate the exact VRAM for your model size and context in the hardware calculator.

Does OOTDiffusion support Russian?

Language does not matter for this model: it does not work with text.

Where can I download OOTDiffusion and what does it cost?

The OOTDiffusion weights are open and free to download. You only pay for the hardware it runs on and for the setup. Source links are at the bottom of this page.

How I deploy it for clients

  1. SelectionI pick the model size for your task and hardware and test it on your examples.
  2. DeploymentI deploy it on your server or in a closed network and provide an API.
  3. Fine-tuningI fine-tune it on your data (LoRA) or connect a knowledge base — whichever is cheaper for the task.
  4. IntegrationI connect it to your CRM, ERP, bot, website or team chat and set up monitoring.

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DetailsVirtual try-onCatVTON / CatV2TONSun Yat-sen University and Pixocial · ChinaNon-commercial only

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DetailsVirtual try-onStableVITONKAIST · South KoreaNon-commercial only

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Details

Source: huggingface.co/api/models/levihsu/OOTDiffusion/commits/main. Data checked against the model card on 22 Sep 2026. Have a lawyer review the license before commercial launch.