--- title: Flux 3 Klein Image Editing API | Image to Image | ModelsLab description: Transform images with Flux 3 Klein Image Editing. AI-powered image editing and style transfer. Plans from $21/month. url: https://modelslab.com/models/modelslab/flux-3-klein-image-editing.md canonical: https://modelslab.com/models/modelslab/flux-3-klein-image-editing type: product component: Playground/Endpoint/Index generated_at: 2026-10-16T23:30:13.538001Z --- [![Flux 3 Klein Image Editing thumbnail](https://assets.modelslab.ai/api-logos/01KPMZY676ZM0Z7YJWBM9C78QP.png)](https://modelslab.com/models/modelslab)Flux 3 Klein Image Editing --- [by ModelsLab](https://modelslab.com/models/modelslab)FLUX 3 Klein Image Editing lets you change images with plain-language instructions. Swap backgrounds, restyle scenes, or combine multiple reference images. Bounding-box editing lets you mark a region to place, move, or change objects and text exactly wher `flux-3-klein` Open Source Model [Unlimited Usage](https://modelslab.com/pricing) [LLMs.txt](https://modelslab.com/models/modelslab/flux-3-klein/llms.txt) [API Playground](/models/modelslab/flux-3-klein-image-editing)API DocumentationVibe CodeRelated ModelsDeveloper SupportModel Specs Input --- Reference Image Add Images orAdd URL File preview Prompt Young woman in red Hanfu, intricate embroidery. Impeccable makeup, red floral forehead pattern. Elaborate high bun, golden phoenix headdress, red flowers, beads. Holds round folding fan with lady, trees, bird. Neon lightning-bolt lamp, bright yellow glow, above extended left palm. Soft-lit outdoor night background, silhouetted tiered pagoda, blurred colorful distant lights. Width Height Layout Add region dog Add objectMove / resizeRemove object DescriptionDog Label (optional) Target placement ![](https://assets.modelslab.ai/generations/6506705e-79a8-4c87-84ee-3450ea51b793.jpg) Draw, drag or resize the box. Use arrow keys when focused for fine adjustments (Shift for larger steps, Alt to resize). Mention in your prompt so the model ties each description to its box. Advanced Settings Customize your input with more control. **$0.0047** per image generation Login to Generate Output --- Idle Unknown content type Looking for something different? --- Models that trade off differently against the one you are viewing ### Better quality Newer flagship models that generally produce stronger results. 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API access starts at $21/month, and open-source models are unlimited on the $149/month plan. ### Technical Specifications Model IDflux-3-klein ProviderModelsLab CategoryImage Models TaskText to Image Price$0.0047 per generation AddedOctober 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](https://modelslab.com/pricing) to get started. PythonJavaScriptcURLPHP ``` 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](https://modelslab.com/pricing) ### Use Cases - Product photography and e-commerce visuals - Marketing and social media content creation - Concept art and design prototyping - Custom illustrations and artwork [Flux API](/flux-api) [Browse Image Models](https://modelslab.com/models?feature=imagen) [More from ModelsLab](https://modelslab.com/models/modelslab) [View Pricing](https://modelslab.com/pricing) Flux 3 Klein Image Editing FAQ --- ### What is Flux 3 Klein Image Editing? Flux 3 Klein Image Editing is a text to image AI model by ModelsLab available on ModelsLab. API access starts at $21/month, and open-source models are unlimited on the $149/month plan. ### How do I use the Flux 3 Klein Image Editing API? You can integrate Flux 3 Klein Image Editing into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "flux-3-klein" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation. ### How much does Flux 3 Klein Image Editing cost? Flux 3 Klein Image Editing costs $0.0047 per generation. ModelsLab plans start at $21/month (Basic), and the $149/month Open Source plan includes unlimited generation on open-source models. ### What is the Flux 3 Klein Image Editing model ID? The model ID for Flux 3 Klein Image Editing is "flux-3-klein". Use this ID in your API requests to specify this model. ### Do I need a paid plan to use Flux 3 Klein Image Editing? 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. --- *This markdown version is optimized for AI agents and LLMs.* **Links:** - [Website](https://modelslab.com) - [API Documentation](https://docs.modelslab.com) - [Blog](https://modelslab.com/blog) --- *Generated by ModelsLab - 2026-10-17*