SD

Stable Diffusion

by Stability AIOpen SourceFree plan available✅ Last verified: July 2026

Quick Answer

Open source AI image generator that runs locally with custom model support.

Open source AI image generation model that can run locally for complete privacy and control. Supports text-to-image, image-to-image, inpainting, and ControlNet for precise composition. Massive community ecosystem of custom models.

Best For

Open source image generationSelf-hosted AI artCustom model fine-tuning

Why Choose Stable Diffusion

  • Completely free and open source
  • Can run locally for privacy
  • Massive community and model ecosystem
  • Highly customizable with ControlNet

Pricing

Open Source

Free plan available — no credit card required for most tools.

Pros

  • +Completely free and open source
  • +Can run locally for privacy
  • +Massive community and model ecosystem
  • +Highly customizable with ControlNet

Cons

  • Requires technical knowledge to self-host
  • Hardware requirements for local use
  • Setup complexity compared to web tools

Key Features

Text-to-imageImage-to-imageInpaintingControlNetCustom models

Compatibility

Platforms

WebWindowsmacOSAPI

API

Available

Alternatives to Stable Diffusion

Tools with similar features, pricing, or use cases.

Frequently Asked Questions about Stable Diffusion

What is Stable Diffusion?

Open source AI image generator that runs locally with custom model support.

Is Stable Diffusion free?

Yes, Stable Diffusion offers a free plan. It is completely free to use.

What platforms does Stable Diffusion support?

Stable Diffusion is available on Web, Windows, macOS, API.

Who is Stable Diffusion best for?

Stable Diffusion is best for open source image generation, self-hosted ai art, custom model fine-tuning.

Does Stable Diffusion have an API?

Yes, Stable Diffusion offers API access for developers and integrations.