Flux 1 Dev

flux-1-dev
byBlack Forest Labs|Created May 26, 2025
Image Generation

Flux-1-Dev is an open-weight, non-commercial text-to-image model from Black Forest Labs, designed for high-quality image generation with a 12B parameter rectified flow transformer. It is optimized for research and creative experimentation.

Code Example

Example code for using this model through our API with Python (OpenAI SDK) or cURL. Replace placeholders with your API key and model ID.

Basic request example. Ensure API key permissions. For more details, see our documentation.

from openai import OpenAI

client = OpenAI(base_url="https://api.naga.ac/v1", api_key="YOUR_API_KEY")

resp = client.images.generate(
    model="flux-1-dev",
    prompt="A white siamese cat",
    size="1024x1024",
    n=1,
    response_format="url",  # or "b64_json"
)
print(resp.data)  # array of images with url or b64_json