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Automatic1111

Most popular web UI for Stable Diffusion image generation

View alternatives →Is it worth it? →

200 reviews

Free tierHas API

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In a nutshell

The OG Stable Diffusion interface that started it all. Still the most feature-rich option with the largest extension ecosystem. ComfyUI is more flexible but A1111 is more approachable.

What's great

Massive extension ecosystem
Most documentation available
Straightforward UI for SD

Watch out for

Requires local GPU
Can be buggy with updates
Losing ground to ComfyUI

Quick Facts

Founded2022

PricingFrom Free

Free tierYes

PlatformsWindows, Mac, Linux

APIAvailable

CategoryAI Image & Design

Q: What is Automatic1111?

Automatic1111 (AUTOMATIC1111/stable-diffusion-webui) is the most widely-used open-source interface for Stable Diffusion. Features a comprehensive UI with extensions, inpainting, and ControlNet support.

Q: How much does Automatic1111 cost?

Automatic1111 starts at Free. A free tier is available with Free (open source).

Q: Who is Automatic1111 best for?

Automatic1111 is best for stable diffusion users wanting a feature-rich local ui.

Q: Is Automatic1111 free?

Yes, Automatic1111 is completely free.

Best for

Stable Diffusion users wanting a feature-rich local UI

Not ideal for

Non-technical users or those without a GPU

Pricing

Free

Free (open source)

Starter

Free

Pro

Free

Enterprise

N/A

View official pricing →

Compare alternatives

Figma

★4.7

See comparison →

Canva

★4.6

See comparison →

ComfyUI

★4.6

See comparison →

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AICores Editorial Review

Reviewed by AICores Editorial Team

Last updated: May 2026

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