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vladmandic

sdnext

All-in-one server and WebUI for generative image and video — Stable Diffusion and dozens of model families, with captioning, upscaling and processing pipelines. Cross-platform, API-first.

7,223 569 Python Apache-2.0updated yesterday
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Curator's take

The serious self-hosted choice for generative imagery: broader model support than the original WebUI it forked from, aggressive hardware coverage (CUDA/ROCm/Intel/Apple), and a real server API that makes it automatable infrastructure rather than a toy. When NOT: if your pipeline is node-graph-shaped, ComfyUI's ecosystem is deeper; and this enters the map without curated edges — it's model infrastructure like ollama, not an agent-stack tool, so pair it yourself for now.

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README.md
SD.Next: AI art generator logo

SD.Next: All-in-one WebUI

SD.Next is a state-of-the-art, open-source server application and web interface (WebUI) for AI image and video generation, built on Stable Diffusion and supporting dozens of advanced models. Create, refine, caption, upscale and process images and videos with a modern, cross-platform application — perfect for artists, researchers, and AI enthusiasts.

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Why SD.Next?

SD.Next is feature-rich open-source AI art generation platform with a focus on performance, flexibility, and user experience.

In addition to supporting all popular workflows, a wide range of platforms and models, SD.Next includes many features not found in other WebUIs, such as:

  • Support for many Diffusion models!
  • Automatic model download: simply select a model from the list of reference models and it will be downloaded and ready to use
    Or download and add your own models and they will be automatically detected and available in the UI
  • SDNQ: State-of-the-Art model quantization engine Use pre-quantized or run with quantization on-the-fly for up to 4x VRAM red