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Stable Diffusion API

Now part of ModelsLab

Stable Diffusion API

Image generation at scale. SD 1.5, SDXL, Flux, ControlNet, LoRA, and 1,000+ community models — through one REST API.

800M+

Images generated

100K+

Developers

1,490+

Models available

From zero to first image in 30 seconds

Send a POST request with your API key and prompt. Free tier — no credit card.

curl -X POST 'https://stablediffusionapi.com/api/v4/dreambooth' \
  -H 'Content-Type: application/json' \
  -d '{
  "key": "YOUR_API_KEY",
  "model_id": "sd-1.5",
  "prompt": "a photo of an astronaut riding a horse on mars",
  "negative_prompt": null,
  "width": "512",
  "height": "512",
  "samples": "1",
  "num_inference_steps": "30",
  "guidance_scale": 7.5,
  "safety_checker": "no",
  "enhance_prompt": "yes",
  "seed": null,
  "webhook": null,
  "track_id": null
}'

Most used models

From 1,490+ in the catalog. Each ships with code samples and parameters.

Common questions

What is Stable Diffusion API?
Stable Diffusion API is a REST API for generating images using Stable Diffusion and 1,000+ community models. It handles the GPU infrastructure so you can focus on building.
Is Stable Diffusion API free?
Yes — the free tier includes 20 image generations. Paid plans start at $8/month with unlimited access to all public models. Pricing is on modelslab.com.
How do I get a Stable Diffusion API key?
Sign up at modelslab.com (Stable Diffusion API is part of ModelsLab). Your API key is in the dashboard under API Settings.
Can I use Stable Diffusion API commercially?
Yes — you retain full copyright on images you generate via the API and can use them commercially.
What models can I use?
Stable Diffusion 1.5, SDXL, Flux, ControlNet, LoRA fine-tunes, anime/photorealistic specialty models, and 1,000+ community uploads. You can also upload your own.

Ready to build?

Free tier includes 20 image generations. No credit card required.

Get your API key →