How do I use Free Models Router via API?

Send a POST request to https://stablediffusionapi.com/api/v4/dreambooth with your API key, prompt, and model_id "openrouter-free". Get an API key from modelslab.com.

Is Free Models Router free to use?

Yes — Stable Diffusion API offers a free tier with 20 generations. Paid plans starting at $8/month give you unlimited access to Free Models Router and 1,000+ other models.

What parameters does Free Models Router support?

Free Models Router accepts standard Stable Diffusion parameters: prompt, negative_prompt, width, height, samples, num_inference_steps (default 30), guidance_scale (default 7.5), seed, and safety_checker.

Can I use generated images commercially?

Yes. You retain copyright on all images you generate via the API and can use them commercially.

Stable Diffusion

Free Models Router

model_id: openrouter-free

Open-weight language models with configurable reasoning, native tool use, and efficient MoE architecture—optimized for production-grade reasoning. The simplest way to get free inference. openrouter/free is a router that selects free models at random from the models available on OpenRouter. The router smartly filters for models that support features needed for your request such as image understanding, tool calling, structured outputs and more. You can integrate Free Models Router into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "openrouter-free" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation. The model ID for Free Models Router is "openrouter-free". Use this ID in your API requests to specify this model.

Use Free Models Router in playground → Get API key 0

Generate with Free Models Router via API

Send a POST request to https://stablediffusionapi.com/api/v4/dreambooth with your API key. Get yours at modelslab.com.

curl -X POST 'https://stablediffusionapi.com/api/v4/dreambooth' \
  -H 'Content-Type: application/json' \
  -d '{
  "key": "YOUR_API_KEY",
  "model_id": "openrouter-free",
  "prompt": "a photo of free models router",
  "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
}'

import requests, json

url = "https://stablediffusionapi.com/api/v4/dreambooth"
payload = json.dumps({
  "key": "YOUR_API_KEY",
  "model_id": "openrouter-free",
  "prompt": "a photo of free models router",
  "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
})
headers = {'Content-Type': 'application/json'}
response = requests.post(url, headers=headers, data=payload)
print(response.text)

const response = await fetch("https://stablediffusionapi.com/api/v4/dreambooth", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
  "key": "YOUR_API_KEY",
  "model_id": "openrouter-free",
  "prompt": "a photo of free models router",
  "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
})
});
const data = await response.json();
console.log(data);

Parameters

Parameter	Default	Description
model_id	openrouter-free	Model identifier
prompt
negative_prompt
width	512	Output image width (px)
height	512	Output image height (px)
samples	1	Number of images to generate
num_inference_steps	30	Denoising steps (1-50)
guidance_scale	7.5	Prompt adherence (1-20)
seed	null	Random seed (null to randomize)
safety_checker	yes	NSFW filter (yes/no)
enhance_prompt	yes	Auto-improve prompt (yes/no)

Also searched as

Free Models Router is also known as: Free Models Router, openrouter-free, openrouter free, openrouterfree, openrouter.free. Use it for stable diffusion image generation, available for download via the Stable Diffusion API REST API at https://stablediffusionapi.com/api/v4/dreambooth.

FAQ — Free Models Router

How do I use Free Models Router via API?: Send a POST request to https://stablediffusionapi.com/api/v4/dreambooth with your API key, prompt, and model_id "openrouter-free". Get an API key from modelslab.com.
Is Free Models Router free to use?: Yes — Stable Diffusion API offers a free tier with 20 generations. Paid plans starting at $8/month give you unlimited access to Free Models Router and 1,000+ other models.
What parameters does Free Models Router support?: Free Models Router accepts standard Stable Diffusion parameters: prompt, negative_prompt, width, height, samples, num_inference_steps (default 30), guidance_scale (default 7.5), seed, and safety_checker.
Can I use generated images commercially?: Yes. You retain copyright on all images you generate via the API and can use them commercially.

Cyberreal

378.1K images generated

Gakuen De Jikan Yo Tomare AnimagineXL 4 0opt 1754375412

378.1K images generated

Stable Diffusion v1-5

Nudify V141

378.1K images generated

Deliberate V2

378.1K images generated

Realistic Vision V51

378.1K images generated

Anything V5

378.1K images generated

Tufos Comic Style Nerd Stallion F1d XL Nerd Stallion F1d V2 1

378.1K images generated

Generate with Free Models Router via API

Parameters

Also searched as

FAQ — Free Models Router

Related models

Cyberreal

Gakuen De Jikan Yo Tomare AnimagineXL 4 0opt 1754375412

Stable Diffusion v1-5

Nudify V141

Deliberate V2

Realistic Vision V51

Anything V5

Tufos Comic Style Nerd Stallion F1d XL Nerd Stallion F1d V2 1