Sdnext
App in the BluixApps catalog
What it is
SD.Next is vladmandic's advanced fork of AUTOMATIC1111 — same UI heritage but with the Diffusers pipeline as default backend, broader model support, aggressive performance optimizations, and more active maintenance. The serious user's A1111 alternative.
Where A1111's pace slowed, SD.Next ships weekly with the latest models (SD3, Flux, Stable Cascade) often before A1111.
What it's for
- Faster generation vs A1111 — Diffusers backend optimizations
- Broader model support — SD 1.5/2.x/3, SDXL, Flux Dev/Schnell, Stable Cascade
- Active maintenance — weekly updates, latest models supported first
- Better memory management — runs bigger models on smaller VRAM
- Modern UI improvements — quality-of-life features A1111 missed
- Multi-backend — switch Diffusers / Original / OpenVINO / IPEX runtime
Who it's for
- A1111 power users dissatisfied with A1111's slower pace
- Studios needing latest model support (Flux, SD3) on day one
- AMD GPU users — DirectML + ROCm support better than vanilla A1111
- Intel GPU / Mac MPS users — broader hardware support
- Hosting providers offering "premium SD with latest models"
Why teams pick SD.Next over alternatives
- AGPL-3.0 — fully open
- Most actively maintained A1111-family UI
- First to support new models in the A1111-style UX family
- Better hardware support — NVIDIA + AMD + Intel + Apple Silicon
- A1111 compatibility — extensions mostly work
- Performance defaults — out-of-box faster than A1111
- Latest research integrated quickly (FreeU, SAG, Self-attention guidance)
Integrations
- Diffusers backend — HuggingFace's official SD pipeline
- ControlNet — full support
- LoRA / Textual Inversion — A1111-compatible
- Flux Dev/Schnell — first-class support
- Stable Cascade — text-to-image at higher resolutions
- Reverse proxy for HTTPS + auth
- API mode — A1111-compatible REST + new endpoints
- TensorRT / OpenVINO — speed-up backends per hardware
Notable users & community
- 6k+ GitHub stars
- Recommended migration path for serious A1111 users
- Strong AMD/Intel community (better support than A1111)
- Active on r/StableDiffusion
- Weekly release cadence
Tips & operations
- Diffusers backend default: faster, sometimes incompatible with old A1111 extensions
- Backend toggle: Settings → Backend → swap between Diffusers/Original
- VRAM optimization: built-in
--lowvram/ sequential CPU offload - Model auto-detect: dropping a
.safetensorsin/modelsworks without restart - Production:
--listen --port 7860 --api - Persistent paths:
/sdnext/models,/sdnext/outputs,/sdnext/extensions - Reverse proxy + HTTPS for any public deployment
What we ship in BluixApps
- Cloned
vladmandic/sdnextrepo, mounted at/opt/sdnext/repo - nvidia/cuda:12.4.0 base + python 3 + webui.sh launcher
- Persistent volumes: models, outputs, repo (auto-update via
git pull) - Port 7861 (separate from A1111 if co-installed)
- Install report at
/root/bluixapps/sdnext.txt - GPU pre-flight check via
bluixapps_ensure_nvidia_runtime - Backup hook covers models + outputs
- Suggested as drop-in upgrade from A1111 for active users
Get this app — pick a BluixApps plan
Same catalog. Scaling tenant isolation, white-label and support tier.
| Tier | Tenants | Catalog | Support | White-label | Monthly | |
|---|---|---|---|---|---|---|
| Stacks | 1 | 19 curated stacks | Standard | — | $19/mo | DetailDeploy |
| Starter | 10 | Full catalog | Standard | +$15–25/mo | $49/mo | DetailDeploy |
| Pro | 25 | Full catalog | Priority bugfix | +$15–25/mo | $149/mo | DetailDeploy |
| Growth | 100 | Full catalog | Priority bugfix | +$15–25/mo | $349/mo | DetailDeploy |
| Scale | 500 | Full catalog | 7-day window | +$15–25/mo | $799/mo | DetailDeploy |
| Enterprise | Unlimited | Full catalog | Priority 7-day | Bundled | $1,499/mo | DetailDeploy |