FLUX.1-schnell

Summary: FLUX.1-schnell is a cutting-edge German text-to-image model developed by Black Forest Labs (founded by former Stability AI creators), representing the next generation of image generation technology with superior quality and exceptional speed. This rapidly advancing model combines artistic creativity with technical precision, making it ideal for content creation, design prototyping, marketing materials, and creative applications where high-quality visual output, fast generation times, and reliability are essential.

Image quality	Speed	Input	Output
Medium	High	Text	Image

Central parameters

Description: Fast image generation model optimized for artistic and stylized visual output with emphasis on creative applications.

Model identifier: black-forest-labs/FLUX.1-schnell

IONOS CLOUD AI Model Hub Lifecycle and Alternatives

IONOS start date	End of Life	Alternative	Successor
November 6, 2024	N/A	N/A

Origin

Provider	Country	License	Flavor	Release
Black Forest Labs	Germany	License	Base	August 1, 2024

Technology

Input Length	Iterations	Quantization	Multilingual	Further details
256	4	8bit	Yes	Hugging Face

Modalities

Text	Image	Audio
Input	Output	Not supported

Endpoints

Chat Completions	Embeddings	Image generation
Not supported	Not supported	v1/images/generations

Features

Streaming	Reasoning	Tool calling
Not supported	Not supported	Not supported

Usage example

Image generation

The following example demonstrates how to generate an image using FLUX.1-schnell.

API Endpoint: POST https://openai.inference.de-txl.ionos.com/v1/images/generations

Request:

{
  "model": "black-forest-labs/FLUX.1-schnell",
  "prompt": "A futuristic city with flying cars at sunset",
  "n": 1,
  "size": "1024*1024",
  "response_format": "b64_json"
}

Response:

{
  "created": 1589478378,
  "data": [
    {
      "b64_json": "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNk+A8AAQUBAScY42YAAAAASUVORK5CYII="
    }
  ]
}

Rate limits

Rate limits ensure fair usage and reliable access to the AI Model Hub. In addition to the contract-wide rate limits, the following rate limits apply:

Endpoint or Scope	Limit	Notes
Image Generation	10 images/minute (base)	Additional limit specifically for images
	20 images/minute (burst)	Short bursts allowed; after a burst, burst quota refills at the base rate (10 images/minute)