Stable Diffusion
V400
model_id: v400
Use Stable Diffusion model "V400" via the Stable Diffusion API — REST endpoint, model_id "v400", free tier, cURL/Python/Node samples. No download required.
Generate with V400 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": "v400",
"prompt": "a photo of v400",
"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
}' Parameters
| Parameter | Default | Description |
|---|---|---|
| model_id | v400 | 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
V400 is also known as: V400, v400, 400. 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 — V400
- How do I use V400 via API?
- Send a POST request to https://stablediffusionapi.com/api/v4/dreambooth with your API key, prompt, and model_id "v400". Get an API key from modelslab.com.
- Is V400 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 V400 and 1,000+ other models.
- What parameters does V400 support?
- V400 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.
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