ComfyUI vs Stable Diffusion (AUTOMATIC1111): Complete Comparison – Which Is Better? [2026]
Compare ComfyUI and Stable Diffusion (AUTOMATIC1111) side by side — pricing, features, performance, and more. Find out which tool is the best choice for your needs.
Verdict:Both ComfyUI and Stable Diffusion (AUTOMATIC1111) are excellent tools in their respective areas. ComfyUI and Stable Diffusion (AUTOMATIC1111) each have unique strengths, and the best choice depends on your specific needs, budget, and use case. We recommend trying the free tier of both tools to determine which better fits your workflow.
Table of Contents
ComfyUI & Stable Diffusion (AUTOMATIC1111) Overview
ComfyUI
A node-based workflow editor for Stable Diffusion. Build AI image generation pipelines visually with high customizability and reproducibility. Completely free and open source.
Learn more about ComfyUI →Stable Diffusion (AUTOMATIC1111)
Stable Diffusion is a free, open-source AI image generator you can run locally. Create unlimited images with full customization via SDXL, LoRA, and ComfyUI.
Learn more about Stable Diffusion (AUTOMATIC1111) →Feature & Pricing Comparison
| Feature | ComfyUI | Stable Diffusion (AUTOMATIC1111) |
|---|---|---|
| Pricing | Free（オープンソース） | Free（オープンソース） |
| 操作方式 | ノードベース（視覚的ワークフロー） | WebUI（フォーム入力式） |
| Learning Curve | ややHighい（ノード理解が必要） | Lowい（直感的なUI） |
| Customizability | 非常にHighい（パイプライン自在構築） | Highい（拡張機能で追加） |
| VRAM使用量 | 軽量（最適化済み） | やや多め |
| ワークフロー共有 | JSON形式で簡単に共有 | パラメータの手動共有 |
| 拡張機能 | カスタムノードがExtensive | Extensions（非常にExtensive） |
| 最新モデル対応 | FLUX・SD3等に迅速Supported | Supportedがやや遅い場合あり |
Our Verdict
Our Verdict
Both ComfyUI and Stable Diffusion (AUTOMATIC1111) are excellent tools in their respective areas. ComfyUI and Stable Diffusion (AUTOMATIC1111) each have unique strengths, and the best choice depends on your specific needs, budget, and use case. We recommend trying the free tier of both tools to determine which better fits your workflow.
Recommendations by Use Case
Users who need a comprehensive, all-in-one solution
ComfyUI offers a broader feature set and wider ecosystem of integrations, making it ideal for users who want an all-in-one platform.
Users focused on specific, specialized tasks
Stable Diffusion (AUTOMATIC1111) excels in its core area with deeper functionality and more refined tools for specialized workflows.
Budget-conscious users or beginners
ComfyUI provides a generous free tier and intuitive interface, making it accessible for new users and those on a tight budget.
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