FLUX-DEV
Flux Controlnet provides precise adjustments for image generation tasks, enhancing creativity and control.
Official Partner
Avg Run Time: 39.000s
Model Slug: flux-dev-controlnet
Playground
Input
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image/jpeg, image/png, image/jpg, image/webp (Max 50MB)
Output
Example Result
Preview and download your result.

API & SDK
Create a Prediction
Send a POST request to create a new prediction. This will return a prediction ID that you'll use to check the result. The request should include your model inputs and API key.
Get Prediction Result
Poll the prediction endpoint with the prediction ID until the result is ready. The API uses long-polling, so you'll need to repeatedly check until you receive a success status.
Readme
Overview
flux-dev-controlnet — Image-to-Image AI Model
flux-dev-controlnet from Black Forest Labs empowers developers and creators with precise control over image edits and generations, solving the challenge of maintaining structure, poses, and details during AI-driven transformations. Developed as part of the flux-dev family, this image-to-image AI model integrates ControlNet conditioning to guide outputs based on reference images, enabling seamless compositing and style transfers without losing key elements. Ideal for image-to-image AI model workflows, flux-dev-controlnet delivers professional-grade results for applications like product visualization and character design.
Technical Specifications
What Sets flux-dev-controlnet Apart
flux-dev-controlnet stands out in the competitive landscape of Black Forest Labs image-to-image tools by leveraging Flux architecture with specialized ControlNet preprocessors for tasks like pose matching, edge detection, and inpainting, which ensure geometric fidelity in complex edits. This enables users to upload a reference image—such as a pose skeleton or segmentation map—and generate variations that strictly adhere to those conditions, perfect for consistent character redesigns across multiple outputs.
Unlike generic diffusion models, it supports modular workflows with semantic segmentation and style imitation via IP-Adapter, allowing recoloring or shuffling of elements while preserving scene coherence. Developers benefit from this in AI image editor API integrations, where rapid iterations on detailed scenes maintain identity and structure without retraining.
Technical specs include compatibility with high-VRAM GPUs for resolutions up to 1024x1024 or higher in Flux pipelines, low-latency distilled variants for quick previews, and input formats like PNG/JPG references processed through ComfyUI nodes. Processing times drop significantly on optimized setups, supporting real-time creative control in edit images with AI pipelines.
- ControlNet preprocessors for OpenPose, Canny edges, and segmentation extract precise conditions from inputs, enabling pose-accurate edits that generic models can't match.
- Flux-dev integration with 4B/9B UNet variants balances speed and quality, ideal for heavy edits preserving global coherence.
- Hybrid conditioning combines text prompts with image controls for instruct-based modifications like "add fire to the house" while keeping backgrounds intact.
Key Considerations
Prompt Quality for Flux Controlnet: Ensure the prompt is descriptive and relevant to your desired output. Avoid vague descriptions for better results.
Control Image: When using control_image, provide high-quality images that match the control type (e.g., clear edges for canny).
Preprocessor Compatibility: Select preprocessors that align with your control type. For example, use HED or PiDiNet with Soft Edge.
Lora Parameters: Use lora_strength and lora_url to incorporate specific weights or styles for further customization.
Tips & Tricks
How to Use flux-dev-controlnet on Eachlabs
Access flux-dev-controlnet through Eachlabs Playground for instant testing with reference images, text prompts, and ControlNet preprocessors like OpenPose or segmentation; tweak strength settings for precise guidance. Integrate via Eachlabs API or SDK by passing base64-encoded input images, conditioning maps, and parameters like resolution (up to 1024x1024) and steps (20-50), receiving high-quality PNG outputs optimized for production workflows.
---Capabilities
Flux Controlnet generates photorealistic images with enhanced depth and edge controls.
Stylized outputs by leveraging lora_url for external weight influences.
Balancing creativity and precision through a wide range of customizable inputs.
What Can I Use It For?
Use Cases for flux-dev-controlnet
For designers building automated image editing API tools, flux-dev-controlnet excels in e-commerce photo editing: upload a product image with a Canny edge map, prompt "place sneakers on urban street at dusk with neon reflections," and generate variants maintaining exact outlines and lighting for catalog-ready visuals without manual Photoshop work.
Marketers using Black Forest Labs image-to-image capabilities can refine campaign assets by feeding character sketches through OpenPose ControlNet; this preserves limb positions while applying styles like "cyberpunk attire with glowing accents," streamlining ad production with consistent anatomy across diverse scenes.
Developers integrating flux-dev-controlnet API into apps for AI photo editing for e-commerce leverage inpainting for targeted changes—supply a masked portrait and instruct "swap background to tropical beach, keep facial expression"—yielding photorealistic results with preserved identity, ideal for personalized avatars.
Content creators experiment with IP-Adapter for style transfers: reference a black-and-white photo, apply "recolor in vibrant anime palette," and output high-fidelity styled images, enabling rapid concept art iteration tied to original compositions.
Things to Be Aware Of
Combine soft_edge with HED for a clean, comic-style effect.
Experiment with DepthAnything in complex landscapes to highlight depth details.
Use a high image_to_image_strength value (e.g., 0.9) for minor touch-ups on existing images.
Limitations
Excessively high steps or guidance_scale values may result in processing delays or unnatural outputs.
Compatibility between control_type and preprocessors must be carefully managed to avoid suboptimal results.
Lower quality control images may lead to poor image outputs, even with optimized parameters.
Output Format: WEBP,JPG,PNG
Pricing
Pricing Detail
This model runs at a cost of $0.001540 per second.
The average execution time is 39 seconds, but this may vary depending on your input data.
The average cost per run is $0.060060
Pricing Type: Execution Time
Cost Per Second means the total cost is calculated based on how long the model runs. Instead of paying a fixed fee per run, you are charged for every second the model is actively processing. This pricing method provides flexibility, especially for models with variable execution times, because you only pay for the actual time used.
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