# 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 and fast generation times are essential.

|                                            **Image quality**                                           |                                                                **Speed**                                                               |                                                                      **Sovereignty**                                                                     |                                                                 **Input**                                                                 |                                                              **Output**                                                              |
| :----------------------------------------------------------------------------------------------------: | :------------------------------------------------------------------------------------------------------------------------------------: | :------------------------------------------------------------------------------------------------------------------------------------------------------: | :---------------------------------------------------------------------------------------------------------------------------------------: | :----------------------------------------------------------------------------------------------------------------------------------: |
| ![Intelligence active](/files/dnDi7yuqXqkBFqwaxdnm)![Intelligence active](/files/dnDi7yuqXqkBFqwaxdnm) | ![Speed active](/files/evfYW3bq4dTBLlZH3dQf) ![Speed active](/files/evfYW3bq4dTBLlZH3dQf) ![Speed active](/files/evfYW3bq4dTBLlZH3dQf) | ![Sovereignty active](/files/bNpzGRJfez9SidEjNCoy) ![Sovereignty active](/files/bNpzGRJfez9SidEjNCoy) ![Sovereignty active](/files/bNpzGRJfez9SidEjNCoy) | ![Text active](/files/45qlqURbT8c2Ekr8HJfK) ![Image inactive](/files/0mPVwOtrYhZrpz9clC3D) ![Audio inactive](/files/PRglWWEC5Zoc5fgynNLM) | ![Model icon](/files/WcxmwJ2hD7xtBeHiOQqH) ![Model icon](/files/DNwY25ymIs7iVH2CHTv1) ![Audio inactive](/files/PRglWWEC5Zoc5fgynNLM) |
|                                                *Medium*                                                |                                                                 *High*                                                                 |                                                                          *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 AI Model Hub Lifecycle and Alternatives

|  **IONOS Launch**  | **End of Life** | **Alternative** | **Successor** |
| :----------------: | :-------------: | :-------------: | :-----------: |
| *November 6, 2024* |       N/A       |       N/A       |               |

## Origin

|                                **Provider**                               | **Country** |                                                                          **License**                                                                          | **Flavor** |    **Release**   |
| :-----------------------------------------------------------------------: | :---------: | :-----------------------------------------------------------------------------------------------------------------------------------------------------------: | :--------: | :--------------: |
| [<mark style="color:blue;">**Black Forest Labs**</mark>](https://bfl.ai/) |   Germany   | [<mark style="color:blue;">**License**</mark>](https://raw.githubusercontent.com/black-forest-labs/flux/refs/heads/main/model_licenses/LICENSE-FLUX1-schnell) |    Base    | *August 1, 2024* |

## Technology

| **Input Length** | **Iterations** | **Quantization** | **Multilingual** |                                              **Further details**                                             |
| :--------------: | :------------: | :--------------: | :--------------: | :----------------------------------------------------------------------------------------------------------: |
|       *256*      |       *4*      |      *8bit*      |       *Yes*      | [<mark style="color:blue;">**Hugging Face**</mark>](https://huggingface.co/black-forest-labs/FLUX.1-schnell) |

## 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:**

```json
{
  "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:**

```json
{
  "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 [<mark style="color:blue;">contract-wide rate limits</mark>](/cloud/ai/ai-model-hub/how-tos/rate-limits.md), 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) |


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