FLUX-KONTEXT
A lightning-fast text-to-image endpoint for the FLUX.1 Kontext [dev] model with LoRA support, delivering high-quality personalized outputs for styles, brands, and products.
Avg Run Time: 45.000s
Model Slug: flux-kontext-lora-text-to-image
Playground
Input
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-kontext-lora-text-to-image — Text to Image AI Model
Developed by Black Forest Labs as part of the flux-kontext family, flux-kontext-lora-text-to-image is a text-to-image generation model that transforms natural language descriptions into high-quality photorealistic images with exceptional speed and precision. This model solves a critical problem for creators and developers: generating professional-grade visuals on-demand without requiring manual design work, photography sessions, or expensive asset libraries.
What sets flux-kontext-lora-text-to-image apart is its unified architecture that handles both generation and editing in a single model, combined with native LoRA adapter support for style personalization. Unlike traditional text-to-image AI models that require separate checkpoints for different tasks, this model delivers consistent, high-fidelity results whether you're generating from scratch or refining existing images through natural language instructions. The architecture uses a rectified flow transformer design that preserves the complete training signal, enabling maximum flexibility for custom adaptations.
The model pairs sophisticated prompt understanding with multi-reference editing capabilities, making it ideal for applications requiring both creative generation and precise control. Whether you're building an AI image editor API, developing personalized visual content systems, or creating brand-consistent product mockups, flux-kontext-lora-text-to-image delivers the speed and quality needed for production environments.
Technical Specifications
What Sets flux-kontext-lora-text-to-image Apart
Unified Generation and Editing Architecture: Unlike competing text-to-image models that separate generation and editing into different checkpoints, flux-kontext-lora-text-to-image handles both capabilities within a single unified model. This means you can generate new images from text prompts and edit existing images with the same model, reducing complexity and ensuring consistent quality across workflows.
Native LoRA Adapter Support for Style Personalization: The model supports custom LoRA (Low-Rank Adaptation) fine-tuning, enabling developers and creators to adapt the model to specific visual styles, brand guidelines, or product aesthetics without retraining the entire model. A single LoRA adapter can handle multiple restoration and editing tasks through text prompt conditioning, dramatically reducing storage and deployment overhead compared to task-specific models.
Multi-Reference Image Editing: Process up to 4 reference images simultaneously to maintain visual consistency across complex compositions. This capability is essential for character consistency editing, product mockup generation, and style transfer applications where maintaining coherence across multiple references would otherwise require manual post-processing.
Technical Specifications:
- Output resolution: Up to 4MP with support for any aspect ratio
- Input minimum: 64x64 pixels
- Multi-reference support: Up to 4 input images for consistent character and style editing
- Advanced controls: Pose guidance, hex color matching, and structured prompting
- Sub-second inference on consumer hardware for rapid iteration during development
The model's parameter-efficient fine-tuning framework means developers building an AI image editor for e-commerce or personalized visual content platforms can achieve production-grade results with minimal computational overhead.
Key Considerations
- LoRA fine-tuning enables efficient personalization without retraining the entire model; best results are seen with LoRA ranks up to 128, with diminishing returns beyond that
- For fine-grained control (e.g., product placement), supplement text prompts with visual cues like bounding boxes for predictable and consistent results
- Prompt engineering is critical; overly complex or imprecise prompts can lead to suboptimal outputs
- Quality and speed trade-off: Higher LoRA ranks and more complex conditioning may improve quality but can increase inference time
- Iterative refinement and prompt adjustment are recommended for challenging tasks such as multi-subject composition or precise spatial edits
Tips & Tricks
How to Use flux-kontext-lora-text-to-image on Eachlabs
Access flux-kontext-lora-text-to-image through Eachlabs via the interactive Playground for immediate experimentation or through the REST API and SDKs for production integration. Provide a text prompt describing your desired image, optionally include up to 4 reference images for multi-reference editing, and specify any LoRA adapters for style personalization. The model accepts resolution settings, aspect ratio preferences, and advanced controls like pose guidance and color matching. Output is delivered as high-quality image files optimized for immediate use in design workflows, e-commerce platforms, or downstream applications.
---END---Capabilities
- Generates high-quality, personalized images from text prompts with support for style, brand, and product customization
- Supports instruction-guided image editing and multi-subject composition
- Excels at spatial grounding and identity preservation, especially when provided with reference images or visual cues
- Delivers fast inference and efficient fine-tuning via LoRA, enabling rapid prototyping and deployment
- Versatile across diverse domains, including creative, commercial, and technical applications
What Can I Use It For?
Use Cases for flux-kontext-lora-text-to-image
E-commerce Product Visualization: Marketing teams can feed product photos plus a text prompt like "place this handbag on a marble kitchen counter with morning sunlight streaming through a window" and receive photorealistic composites ready for catalog listings. The multi-reference editing capability eliminates expensive studio shoots and enables rapid A/B testing of product placements across different environments.
Brand-Consistent Content Generation: Design agencies and in-house creative teams can fine-tune LoRA adapters on brand visual guidelines, then generate unlimited variations of marketing assets, social media graphics, and promotional materials that maintain consistent style and aesthetic. A single unified model handles both generation and refinement, reducing the need for multiple specialized tools in your creative workflow.
Character and Avatar Consistency: Game developers, animation studios, and character-driven content creators can use multi-reference editing to maintain character consistency across scenes and variations. Upload reference images of a character and describe the desired pose, clothing, or expression—the model preserves identity while applying precise modifications, streamlining asset creation pipelines.
API-Driven Visual Content Platforms: Developers building applications that require dynamic image generation with user customization can leverage flux-kontext-lora-text-to-image's native API support and LoRA adapter capabilities. The model's sub-second inference enables real-time preview and iteration, while parameter-efficient fine-tuning allows you to offer personalized style options without exponential infrastructure costs.
Things to Be Aware Of
- LoRA fine-tuning is highly effective for personalization but may require careful prompt engineering for best results
- Visual cue integration (e.g., bounding boxes) significantly improves control over placement and scale in generated images
- Some users report challenges with fine-grained control using text prompts alone; visual cues are recommended for precision
- Resource requirements scale with model size and LoRA rank; higher ranks may increase memory and compute needs
- Consistency is generally strong, but complex or ambiguous prompts can lead to unpredictable outputs
- Positive feedback highlights fast inference, high-quality outputs, and flexible customization
- Common concerns include occasional prompt misinterpretation and difficulty with highly detailed spatial edits using text alone
Limitations
- Fine-grained spatial control is limited when relying solely on text prompts; visual cues are often necessary for precision
- May not be optimal for tasks requiring ultra-high-resolution outputs or highly detailed photorealism without additional fine-tuning
- Complex multi-object or multi-instruction scenarios may require iterative prompt refinement and advanced conditioning techniques
Pricing
Pricing Detail
This model runs at a cost of $0.035 per execution.
Pricing Type: Fixed
The cost remains the same regardless of which model you use or how long it runs. There are no variables affecting the price. It is a set, fixed amount per run, as the name suggests. This makes budgeting simple and predictable because you pay the same fee every time you execute the model.
Related AI Models
You can seamlessly integrate advanced AI capabilities into your applications without the hassle of managing complex infrastructure.
