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Stable Diffusion

Open-source AI image generation with unlimited customization

4.3
1850 reviews 86% would recommend
✓ Free plan available Cloud (SaaS)
Free

Free (Always Free)

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What is Stable Diffusion?

Stable Diffusion is the most popular open-source AI image generator. Unlike proprietary alternatives, you can run it locally for free, customize it with community models, and use it without restrictions.

Key Features

  • Open Source: Free to download and run locally
  • SDXL & SD 3.5: Latest high-quality models
  • Community Models: Thousands of fine-tuned models on Civitai
  • ControlNet: Precise control over image generation
  • Inpainting/Outpainting: Edit and extend images
  • No Restrictions: Full creative freedom
  • API Available: Cloud-based options from $0.01/image

Best For

Developers, technical users, high-volume generation, anyone wanting full control over their AI image generation, and users seeking cost-effective solutions.

Top Features

  • Open-source and self-hostable
  • Stable Diffusion 3.5 with 8 billion parameters
  • Highly customizable with LoRA and fine-tuning
  • Multiple model variants (SDXL, Turbo, etc.)
  • Inpainting and outpainting
  • ControlNet for precise control
  • Img2Img transformations
  • Free for personal use under $1M revenue

User Ratings

Ease of Use
3.8
Customer Service
3.5
Features
4.6
Value for Money
4.7

Pros

  • Free and open-source (Community License)
  • Can run locally for complete privacy
  • Highly customizable with extensions
  • Large community and model ecosystem
  • No content restrictions when self-hosted
  • Excellent for fine-tuning on custom data

Cons

  • Steeper learning curve
  • Requires technical knowledge for best results
  • Local setup requires capable hardware
  • Less consistent than commercial alternatives

Best For

Developers, technical users, high-volume generation, anyone wanting full control over their AI image generation, and users seeking cost-effective solutions.

Features

Image Generation

  • Text-to-Image
  • Image-to-Image
  • Inpainting/Outpainting
  • ControlNet
  • LoRA Fine-tuning

Deployment Options

  • Self-Hosted
  • Cloud API
  • Custom Fine-tuning

Pricing

MOST POPULAR

Community License

Contact us

Free for individuals and small businesses

  • Full model access
  • Unlimited generations
  • Self-hosted
  • For businesses under $1M revenue
Get Started

API Credits

$0.01 one_time

Per credit via Stability AI API

  • Cloud-hosted
  • SD 3.5 access
  • 25 free credits to start
  • No local hardware needed
Get Started

Enterprise

Contact us

Custom licensing for large businesses

  • Commercial license
  • Custom support
  • SLA guarantees
  • For businesses over $1M revenue
Get Started

User Reviews

AI Developer
Machine Learning Engineer • Technology
51-200 employees
Verified

"Best for customization and control"

Stable Diffusion is unmatched for customization. We've trained our own LoRAs and integrated it into our pipeline. The open-source nature is invaluable. Requires technical expertise but worth it.

Pros

Open-source, highly customizable, can run locally

Cons

Learning curve, requires good GPU for local use

Frequently Asked Questions

Can I run Stable Diffusion on my computer?

Yes, Stable Diffusion can run locally. You'll need a capable GPU (8GB+ VRAM recommended). Popular interfaces include Automatic1111 and ComfyUI. This gives you unlimited generations and complete privacy.

Product Details

Vendor Stability AI
Founded 2020
Headquarters London, UK
Company Size 201-500 employees
Deployment Cloud (SaaS)
Mobile Apps No
Free Tier Yes
API Yes

Support Options

Documentation Community Forum Discord GitHub

Training

Documentation Community Tutorials GitHub Guides

Integrations

ComfyUI, Automatic1111, various third-party apps, custom via API

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