Flux 3 Klein Image Editing

Technical Specifications

Model ID

flux-3-klein

Provider

ModelsLab

Category

Image Models

Task

Text to Image

Price

$0.0047 per generation

Added

October 16, 2026

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 3 Klein Image Editing 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/img2img"

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

data = {
        "model_id": "flux-3-klein",
        "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}")

Pricing

Flux 3 Klein Image Editing API costs $0.0047 per generation. Plans start at $21/month, and open-source models are unlimited on the $149/month plan. 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