Kontext Dev — Fast, Flexible, and Developer Friendly
Edit fast. Ship faster.
FLUX Kontext Dev is an open-weight, developer-oriented version of the powerful Kontext dev model. It delivers ultra-fast image editing, batch support, and multi-image inference capabilities—all accessible via API. Perfect for experiments, production pipelines, or creative automation.
Example Use Cases
Fast and flexible editing for development, prototyping, and production workflows
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Background Replacement
Put the woman in a jungle while keeping original position and framing
Seamlessly replace backgrounds while maintaining perfect subject positioning and lighting consistency
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Text Replacement
Replace 'Joy Brew' with 'FLUX Coffee' on the cup
Precisely edit text on products and branding materials while maintaining typography style and design elements
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Product Branding
Change the product name on the box to 'FluxBox 2.0' while keeping layout and font style
Update product branding and names while preserving original typography, layout, and design integrity
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Hairstyle Change
Change her hairstyle to a short pixie cut
Transform hairstyles while maintaining facial features and overall composition perfectly
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Watercolor Painting
Convert to colorful watercolor style with paper texture
Transform photos into vibrant watercolor paintings with authentic brush textures and paper effects
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90s Cartoon Style
Make this a 90s cartoon style
Transform realistic photos into vibrant 90s cartoon artwork with bold outlines and flat colors
Core Features
Open weights, ultra-fast inference, and multi-framework support designed for developers
Open Source & Deployment
Open Weights
Fully open-source model weights hosted on HuggingFace for research and custom deployment.
Model weights freely available under Non-Commercial License.
Ultra-Fast Inference
Optimized model supports rapid response, suitable for local deployment, experimental platforms, and batch processing workflows.
Framework Compatibility
Supports mainstream inference platforms including HuggingFace Diffusers, ComfyUI, and TensorRT.
Works out of the box on local or cloud-based pipelines.
Benchmark-Proven Performance
Outperforms multiple closed-source and open-source image editing models in our KontextBench evaluation (including Gemini Flash, Bagel, etc.).
NVIDIA Optimized
Provides TensorRT weights optimized for NVIDIA Blackwell architecture (BF16 / FP8 / FP4), balancing speed and efficiency.
API & Billing
Production-Ready API
Kontext Dev model is deployed on our platform. No local deployment needed - register and start using immediately. Supports batch calls and low-latency responses for all development scenarios.
No setup needed — just call the API.
Credits-Based Billing
Users can directly call the model API by purchasing credits. Simple, transparent pricing with no licensing negotiations required. Suitable for individual developers to enterprise applications.
Pay only for what you use — flexible and scalable.
Commercial Licensing Ready
Self-service licensing portal available for enterprises to quickly purchase commercial licenses and integrate into products and services.
Real-time Webhooks
Instant notifications upon asynchronous processing completion. No polling required, improving application response efficiency.
Low Latency Response
Optimized inference engine ensures rapid response times, suitable for real-time application scenarios.
Pricing
$0.02 per image generation
Kontex Dev offers competitive pricing at just $0.02 per successful image generation. Multiple variants will be offered to suit different speed and quality requirements.