ComfyUI vs 
SD.Next
ComfyUI vs SD.Next compared for 2026 — features, license, ease of use, performance and which one to choose. Node-graph control over image pipelines vs Power-user fork with broad model support.
Updated regularly · curated by olud.ai
ComfyUI vs SD.Next at a glance
| Spec | ComfyUI | SD.Next |
|---|---|---|
| Category | AI image generation | AI image generation |
| Type | Node-based UI | Web UI |
| License | GPL-3.0 | AGPL-3.0 |
| Runs locally | Yes | Yes |
| Primary language | Python | Python |
| Ease of use | Advanced | Advanced |
| Best for | power users who want full pipeline control | power users who want the newest architectures |
| GitHub stars | — | 7.2k |
Feature comparison
| Feature | ComfyUI | SD.Next |
|---|---|---|
| Runs locally | ✓ | ✓ |
| Node workflows | ✓ | ✗ |
| Inpainting | ✓ | ✓ |
| LoRA support | ✓ | ✓ |
| ControlNet | ✓ | ✓ |
| API | ✓ | ✓ |
How ComfyUI and SD.Next score
| Criterion | ComfyUI | SD.Next |
|---|---|---|
| Popularity | n/a | 2.5 |
| Maintenance | n/a | 5.0 |
| Ease of use | 2.5 | 2.5 |
| Privacy | 5.0 | 5.0 |
| License freedom | 3.5 | 3.5 |
Scores are computed automatically from public signals — GitHub stars (popularity), recent commit activity (maintenance), license type (freedom), local-first design (privacy) and onboarding complexity (ease of use). Indicative, not a verdict.
What each one is
ComfyUI
ComfyUI is a node-graph interface for diffusion models that exposes every step of the generation pipeline, enabling complex, reproducible and shareable workflows.
- Total control via a visual node graph
- Reproducible, shareable workflows
- First to support new models and techniques
SD.Next
SD.Next is a feature-forward web UI for image generation that supports a wide range of model architectures and backends with frequent updates.
- Supports many model architectures and backends
- Frequent updates and optimizations
- Highly configurable for advanced users
Key differences
ComfyUI is node-based UI, while SD.Next is web UI. Their licenses differ (GPL-3.0 vs AGPL-3.0), which matters if you ship a commercial product. In short, ComfyUI fits power users who want full pipeline control, and SD.Next fits power users who want the newest architectures.
Which should you choose?
Choose ComfyUI for power users who want full pipeline control. Choose SD.Next for power users who want the newest architectures.
There is rarely one winner — many setups use both. The right pick depends on your hardware, your team's skills, and whether you value simplicity or control.
Frequently asked questions
Is ComfyUI or SD.Next easier to use?
Both sit at a similar level (Advanced). Your choice should come down to fit rather than difficulty.
Are ComfyUI and SD.Next free?
ComfyUI is free and open source (GPL-3.0), and SD.Next is free and open source (AGPL-3.0). Neither charges for the core software.
Can I run ComfyUI and SD.Next locally?
ComfyUI: yes · SD.Next: yes. Both can be used without sending your data to a third-party cloud where their setup allows.
ComfyUI vs SD.Next — which should I pick in 2026?
Choose ComfyUI for power users who want full pipeline control. Choose SD.Next for power users who want the newest architectures.
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