How do I use the Flux API?

You can integrate Flux into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "flux" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation.

How much does Flux cost?

Flux costs $0.0047 per API call. ModelsLab uses pay-per-use pricing with no minimum commitments. A free tier is available to get started.

What is the Flux model ID?

The model ID for Flux is "flux". Use this ID in your API requests to specify this model.

Does Flux have a free tier?

Yes, ModelsLab offers a free tier that lets you try Flux and other AI models. Sign up to get free API credits and start building immediately.

Flux API | Text to Image

Input

Per image generation will cost 0.0047$
For premium plan image generation will cost 0.00$ i.e Free.

Output

Idle

Unknown content type

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About Flux

Generate high-resolution, diverse images up to 2 megapixels with a 12 billion parameter flow transformer using advanced flow matching, rotary embeddings, and parallel attention layers for precise prompt adherence and style control.

Technical Specifications

Model ID: flux
Provider: Modelslab
Category: Image Models
Task: Text to Image
Price: $0.0047 per API call
Added: November 12, 2025

Key Features

High-resolution AI image generation from text prompts
Negative prompt support for precise control
Multiple output formats and aspect ratios
Adjustable inference steps and guidance scale
Batch generation support via API

Quick Start

Integrate Flux into your application with a single API call. Get your API key from the pricing page to get started.

import requests
import json

url = "https://modelslab.com/api/v6/images/text2img"

headers = {
    "Content-Type": "application/json"
}

data = {
        "model_id": "flux",
        "prompt": "your prompt here",
        "key": "YOUR_API_KEY"
    }

try:
    response = requests.post(url, headers=headers, json=data)
    response.raise_for_status()  # Raises an HTTPError for bad responses (4XX or 5XX)
    result = response.json()
    print("API Response:")
    print(json.dumps(result, indent=2))
except requests.exceptions.HTTPError as http_err:
    print(f"HTTP error occurred: {http_err} - {response.text}")
except Exception as err:
    print(f"Other error occurred: {err}")

View the full API documentation for SDKs, code examples in Python, JavaScript, and more.

Pricing

Flux API costs $0.0047 per API call. Pay only for what you use with no minimum commitments. View pricing plans

Use Cases

Product photography and e-commerce visuals
Marketing and social media content creation
Concept art and design prototyping
Custom illustrations and artwork

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Flux