Unprompted is a templating language for Stable Diffusion workflows, available as an AUTOMATIC1111 extension.
Multidiffusion Upscaler For Automatic1111
This AUTOMATIC1111 extension provides tiled diffusion and VAE optimization for Stable Diffusion workflows.
About Multidiffusion Upscaler For Automatic1111
This GitHub repository provides a tiled diffusion and VAE optimization extension for the AUTOMATIC1111 Stable Diffusion WebUI. It is designed to help generate or upscale large images (2K and above) on graphics cards with limited VRAM (6GB or less) by using tiled methods.
The extension includes Tiled VAE, Tiled Diffusion for txt2img and img2img, Regional Prompt Control, and Tiled Noise Inversion. Advanced support covers ControlNet, StableSR, SDXL, and Demofusion. It is free to use under CC BY-NC-SA 4.0, but versions after AOE 2023.3.28 cannot be used for commercial sales of the code; derived artworks are not restricted.
Key features
- Tiled VAE optimization for Stable Diffusion.
- Tiled Diffusion for txt2img generation of ultra-large images.
- Tiled Diffusion for img2img upscaling and detail enhancement.
- Regional Prompt Control.
- Tiled Noise Inversion method.
- Support for ControlNet, StableSR, SDXL, and Demofusion.
Best for: Stable Diffusion users running AUTOMATIC1111 WebUI with limited VRAM (≤6GB) who need to generate or upscale large images (≥2K).
Good for
- Enables large image generation and upscaling with limited VRAM (≤6GB) using tiled methods.
- Includes original Tiled VAE and Tiled Noise Inversion methods.
- Supports advanced tools such as ControlNet, StableSR, SDXL, and Demofusion.
Watch out for
- Licensed under CC BY-NC-SA 4.0; versions after AOE 2023.3.28 cannot be used for commercial sales (code only).
- Requires AUTOMATIC1111 Stable Diffusion WebUI.
Multidiffusion Upscaler For Automatic1111 at a glance
- Category
- AI & Machine Learning › AI Image Generators
- Type
- Open-source project
- Pricing
- Free
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Multidiffusion Upscaler For Automatic1111 FAQ
What license applies to this extension?
It is licensed under CC BY-NC-SA 4.0, which allows free access, use, modification, and redistribution under the same license.
Can I use it for commercial sales?
Versions after AOE 2023.3.28 cannot be used for commercial sales; the restriction applies to the repository code, not to derived artworks.
What VRAM does it require?
It is designed to generate or upscale large images (≥2K) with limited VRAM (≤6GB).
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