Black Forest LabsFastHigh

FLUX.1 Schnell

Ultra-fast image generation model optimized for speed. Generates high-quality images in just 1-2 seconds, perfect for real-time applications and rapid prototyping.

4 credits

per image

Ultra-fast generation (1-2 seconds)

High-quality output at 1024x1024

Excellent prompt understanding

Great for real-time applications

Low credit cost per generation

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": "flux-schnell",
  "input": {
    "prompt": "A sleek wireless headphone on a minimalist white marble surface, professional product photography, soft studio lighting, 8k ultra detailed",
    "image_size": "landscape_4_3",
    "num_inference_steps": 4
  }
}'

Parameters

Parameter	Type	Required	Default	Description
`prompt`	string	Yes	-	Text description of the image to generate
`image_size`	string	No	landscape_4_3	Output image dimensions square_hdsquareportrait_4_3portrait_16_9landscape_4_3landscape_16_9
`num_inference_steps`	integer	No	4	Number of denoising steps (1-50)
`seed`	integer	No	-	Random seed for reproducibility
`num_images`	integer	No	1	Number of images to generate (1-4)

Examples

Product Photography

Generate professional product shots

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: YOUR_API_KEY" \
  -d '{
  "model": "flux-schnell",
  "input": {
    "prompt": "A sleek wireless headphone on a minimalist white marble surface, professional product photography, soft studio lighting, 8k ultra detailed",
    "image_size": "landscape_4_3",
    "num_inference_steps": 4
  }
}'

Character Design

Create unique character concepts

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: YOUR_API_KEY" \
  -d '{
  "model": "flux-schnell",
  "input": {
    "prompt": "A cyberpunk samurai warrior with glowing neon armor, detailed character design, concept art style, dramatic lighting",
    "image_size": "portrait_4_3"
  }
}'

Landscape Art

Generate stunning landscapes

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: YOUR_API_KEY" \
  -d '{
  "model": "flux-schnell",
  "input": {
    "prompt": "Breathtaking mountain vista at golden hour, misty valleys below, photorealistic landscape photography, National Geographic style",
    "image_size": "landscape_16_9"
  }
}'