Stability AIMediumHigh

Stable Diffusion XL

Industry-standard open-source image generation model. Highly versatile with excellent community support and fine-tuning options.

8 credits

per image

Open-source foundation

Extensive fine-tuned variants

Strong community ecosystem

LoRA/embedding support

Proven reliability

Quick Start

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: YOUR_API_KEY" \
  -d '{
  "model": "stable-diffusion-xl",
  "input": {
    "prompt": "Majestic dragon perched on ancient castle ruins, dramatic sunset, epic fantasy art, detailed scales, glowing eyes, masterpiece quality",
    "negative_prompt": "blurry, low quality, distorted",
    "width": 1024,
    "height": 1024,
    "num_inference_steps": 30,
    "guidance_scale": 7.5
  }
}'

Parameters

Parameter	Type	Required	Default	Description
`prompt`	string	Yes	-	Text description of the image to generate
`negative_prompt`	string	No	-	Things to exclude from the image
`width`	integer	No	1024	Image width (512-1536)
`height`	integer	No	1024	Image height (512-1536)
`num_inference_steps`	integer	No	30	Number of denoising steps
`guidance_scale`	float	No	7.5	Prompt adherence strength (1-20)
`seed`	integer	No	-	Random seed for reproducibility

Examples

Fantasy Art

Create fantasy illustrations

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: YOUR_API_KEY" \
  -d '{
  "model": "stable-diffusion-xl",
  "input": {
    "prompt": "Majestic dragon perched on ancient castle ruins, dramatic sunset, epic fantasy art, detailed scales, glowing eyes, masterpiece quality",
    "negative_prompt": "blurry, low quality, distorted",
    "width": 1024,
    "height": 1024,
    "num_inference_steps": 30,
    "guidance_scale": 7.5
  }
}'