Stability AI

Model

Image generation and editing API built on Stable Diffusion models

Price: Free credits, then paid
Access: API key

About

Image, audio and 3D generation API from the makers of Stable Diffusion, with editing, upscaling and control tools. Calls are billed in credits at $0.01 each. Accounts created with Google sign-in get 25 free credits.

What you can do with it

Generate images from text prompts with Stable Diffusion 3.5
Inpaint, outpaint, erase objects or remove image backgrounds
Upscale low-resolution images by 4x or into 4K detail

Get started

Sign in with Google to get 25 free credits
Create an API key on the API Keys page

Example

curl -f -sS "https://api.stability.ai/v2beta/stable-image/generate/sd3" \
  -H "authorization: Bearer $STABILITY_API_KEY" \
  -H "accept: image/*" \
  -F prompt="Lighthouse on a cliff overlooking the ocean" \
  -F model="sd3.5-large" \
  -F output_format="jpeg" \
  -o "./lighthouse.jpeg"

Details

Hosting: Hosted service
Available in: Worldwide
MCP server: None