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Black Forest LabsMediumUltra

FLUX.1 Pro

Professional-grade image generation with superior quality and detail. Best choice for commercial projects requiring the highest visual fidelity.

25 credits
per image
State-of-the-art image quality
Exceptional detail and textures
Superior prompt adherence
Commercial-grade output
Advanced style control

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-pro",
  "input": {
    "prompt": "Ultra-luxury Swiss watch with intricate mechanical details visible through sapphire crystal, sitting on black velvet, dramatic lighting, advertisement quality, 8k",
    "image_size": "square_hd",
    "num_inference_steps": 28,
    "guidance_scale": 3.5
  }
}'

Parameters

ParameterTypeRequiredDefaultDescription
promptstringYes-Text description of the image to generate
image_sizestringNolandscape_4_3Output image dimensions
square_hdsquareportrait_4_3portrait_16_9landscape_4_3landscape_16_9
num_inference_stepsintegerNo28Number of denoising steps (1-50)
guidance_scalefloatNo3.0Prompt adherence strength (1.0-20.0)
seedintegerNo-Random seed for reproducibility
safety_tolerancestringNo2Content safety level (1-6)

Examples

Luxury Product

High-end product visualization

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: YOUR_API_KEY" \
  -d '{
  "model": "flux-pro",
  "input": {
    "prompt": "Ultra-luxury Swiss watch with intricate mechanical details visible through sapphire crystal, sitting on black velvet, dramatic lighting, advertisement quality, 8k",
    "image_size": "square_hd",
    "num_inference_steps": 28,
    "guidance_scale": 3.5
  }
}'

Editorial Fashion

Magazine-quality fashion imagery

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: YOUR_API_KEY" \
  -d '{
  "model": "flux-pro",
  "input": {
    "prompt": "High fashion editorial photograph, model wearing avant-garde designer gown, Vogue magazine style, professional studio lighting, elegant pose",
    "image_size": "portrait_4_3",
    "num_inference_steps": 35
  }
}'

Tips & Best Practices

1Use detailed, descriptive prompts for best results
2Higher guidance_scale values follow prompts more strictly
3Use 28-35 inference steps for optimal quality
4Perfect for print materials and high-resolution displays
5Combine with specific art style references for unique outputs

Use Cases

Commercial advertising campaigns
High-end product visualization
Professional art and illustration
Marketing materials
Print-quality imagery