Image Generation
The IONOS AI Model Hub provides an OpenAI-compatible API that enables high-quality image generation using state-of-the-art foundation models. By inputting descriptive prompts, users can create detailed images directly through the API, without the need for managing underlying hardware or infrastructure.
Supported Image Generation Models
The following models are currently available for image generation, each suited to different types of visual outputs:
Model Provider | Model Name | Purpose |
---|---|---|
stability.ai (License) | Stable Diffusion XL | Generates photorealistic images, ideal for marketing visuals, product mockups, and natural scenes. |
BlackForestLab (License) | FLUX.1-schnell | Generates artistic, stylized images, well-suited for creative projects, digital art, and unique concept designs. |
Overview
In this tutorial, you will learn how to generate images using foundation models via the IONOS API. This tutorial is intended for developers with basic knowledge of:
REST APIs
A programming language for handling REST API endpoints (Python and Bash examples are provided)
By the end, you will be able to:
Retrieve a list of available image generation models in the IONOS AI Model Hub.
Use prompts to generate images with these models.
Getting Started with Image Generation
To use image generation models, first set up your environment and authenticate using the OpenAI-compatible API endpoints.
Step 1: Retrieve Available Models
Fetch a list of models to see which are available for your use case:
This query returns a JSON document listing each model's name, which you’ll use to specify a model for image generation in later steps.
Step 2: Generate an Image with Your Prompt
To generate an image, send a prompt to the /images/generations
endpoint. Customize parameters like size
for the resolution of the output image.
Step 3: Extract and Interpret the Result
The returned JSON includes several key fields, most importantly:
data.[].b64_json
: The generated image in base64 format.usage.prompt_tokens
: Token count for the input prompt.usage.total_tokens
: Token count for the entire process (usually zero for image generation, as billing is per image).
Summary
In this tutorial, you learned how to:
Access available image generation models.
Use descriptive prompts to generate high-quality images, ideal for applications in design, creative work, and more.
For information on text generation, refer to our dedicated tutorial on text generation models.
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