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Flux Klien 9B

by ModelsLab

A distilled version of Flux Klien 9B that matches or exceeds leading competitors with only 8 NFEs (Number of Function Evaluations)

flux-klein
Open Source ModelUnlimited UsageLLMs.txt
Endpoint
API Playground

Input

$0.0047 per image generation

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About Flux Klien 9B

Flux Klien 9B is a text to image AI model, available on ModelsLab through the API and the playground above. API access starts at $21/month, and open-source models are unlimited on the $149/month plan.

Overview: FLUX API

Flux Klien 9B facts

Provider
ModelsLab
Price
$0.0047 per image
Added to ModelsLab
March 11, 2026
Model ID
flux-klein

Sample outputs

  • Flux Klien 9B : A colorful and attractive children's wall newspaper (روزنامه دیواری) about stainless steel. In the center, there is a cu

    A colorful and attractive children's wall newspaper (روزنامه دیواری) about stainless steel. In the center, there is a cute cartoon character of a shiny, smiling stainless steel spoon or pot wearing an invisible protective shield. The content is organized in colorful boxes, small clouds, and beautiful geometric shapes. Small illustrations of stainless steel medical tools and kitchenware are scattered around. The overall atmosphere is happy, educational, and child-friendly. The text is represente...

  • Flux Klien 9B : An educational and attractive poster for 9th-grade social studies (Lesson 5) showing various biomes in one comprehensive

    An educational and attractive poster for 9th-grade social studies (Lesson 5) showing various biomes in one comprehensive and simple image. The image should include: 1. Tundra (frozen landscape with low vegetation), 2. Taiga (coniferous forests), 3. Tropical Rainforests (tall green trees), 4. Grasslands/Savanna, 5. Desert (sand and cacti), and 6. Aquatic biome (ocean/sea). Each section should feature its respective animals (e.g., lion, zebra, camel, polar bear, dolphin, etc.) and characteristic...

  • Flux Klien 9B : A highly realistic photo of the boy from the first image (1000336064.jpg), strictly preserving his exact facial features

    A highly realistic photo of the boy from the first image (1000336064.jpg), strictly preserving his exact facial features, age, and natural appearance. He is placed in a very simple and neutral environment, such as a plain room or a basic outdoor setting. The primary focus is to ensure the face is an exact match to the original photo, with no changes to his age or facial structure. hyperrealistic, full body, detailed clothing, highly detailed, cinematic lighting, stunningly beautiful, intricate,...

  • Flux Klien 9B : A colorful and educational wall newspaper (poster) for children about stainless steel in Persian. The image should featu

    A colorful and educational wall newspaper (poster) for children about stainless steel in Persian. The image should feature different sections: a cute cartoon character of a shiny, smiling steel soldier holding an invisible shield, illustrations of spoons, forks, and medical tools. A large title at the top in beautiful Persian calligraphy saying "قهرمان براق: استیل" (The Shiny Hero: Steel). The overall atmosphere should be joyful, motivational, and inspiring, using bright colors and engaging sch...

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 Klien 9B 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-klein",
"prompt": "A highly detailed, ultra-realistic scene inside a modern McDonald’s restaurant. At the counter stands a friendly anthropomorphic creature resembling a furry monster or gentle beast. The creature has thick golden-brown fur, expressive round eyes, a wide flat nose, and a soft, friendly facial expression.",
"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 Klien 9B 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

Flux Klien 9B FAQ

Flux Klien 9B is a text to image AI model, available on ModelsLab through the API and the playground above.

You can integrate Flux Klien 9B into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "flux-klein" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation.

Flux Klien 9B costs $0.0047 per image. ModelsLab plans start at $21/month (Basic), and the $149/month Open Source plan includes unlimited generation on open-source models.

The model ID for Flux Klien 9B is "flux-klein". Use this ID in your API requests to specify this model.

Yes. ModelsLab is subscription-based with no free tier — plans start at $21/month (Basic, 3,250 API calls). The $149/month Open Source Unlimited plan includes unlimited generation across open-source models; premium third-party models are billed per call from your wallet.