pkuliyi2015/multidiffusion-upscaler-for-automatic1111 - OSS Alternative - Discover Top Open Source Alternatives to Popular Software
AI Image Generation Extension
5.0k 2026-05-06

pkuliyi2015/multidiffusion-upscaler-for-automatic1111

An extension for Automatic1111's Stable Diffusion web UI that enables generating and upscaling large images (≥2K) with limited VRAM (≤6GB) using advanced tiled diffusion and VAE methods.

Core Features

Tiled VAE and Tiled Diffusion for ultra-large image generation and upscaling.
Regional Prompt Control for detailed image composition.
Support for ControlNet, StableSR, SDXL, and Demofusion.
Optimized for limited VRAM environments (e.g., ≤6GB).

Detailed Introduction

This project is a crucial extension for users of the Automatic1111 Stable Diffusion web UI, addressing the common challenge of generating or upscaling high-resolution images with constrained GPU memory. By implementing state-of-the-art tiled diffusion techniques, including Mixture of Diffusers, MultiDiffusion, Demofusion, and original Tiled VAE/Noise Inversion methods, it allows users to produce large-scale artworks (2K and above) even with as little as 6GB of VRAM. It significantly enhances the accessibility and capability of AI image generation for a broader range of hardware configurations.

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