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multi-image-kontext

Flux Multi Image Kontext

An experimental FLUX Kontext model that can combine two input images

Avg Run Time: 20.000s

Model Slug: multi-image-kontext

Category: Image to Image

Input

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Output

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Each execution costs $0.0800. With $1 you can run this model about 12 times.

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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.

Table of Contents
Overview
Technical Specifications
Key Considerations
Tips & Tricks
Capabilities
What Can I Use It For?
Things to Be Aware Of
Limitations

Overview

The "multi-image-kontext" model is an experimental image generator from the FLUX Kontext family, designed specifically to combine two input images into a single, coherent output. Developed as part of ongoing research into multimodal and compositional image generation, this model leverages advanced image-to-image synthesis techniques to merge visual elements from both sources according to user instructions or prompts. Its primary innovation lies in its ability to selectively blend or overlay features from two distinct images, enabling creative compositions, object transfers, or scene integrations.

Key features include prompt-driven control over how the images are combined, the ability to preserve or modify specific regions, and support for nuanced blending that maintains natural appearance. The underlying architecture is based on the FLUX Kontext framework, which is known for its flexible image manipulation and context-aware generation capabilities. This model stands out for its fine-grained control, allowing users to specify not just what to combine, but how the combination should appear, such as placing an object from one image onto another in a realistic manner.

The uniqueness of multi-image-kontext comes from its experimental approach to compositional image generation, where the model interprets both visual and textual instructions to produce outputs that are contextually and visually coherent. This makes it particularly valuable for creative professionals, designers, and researchers seeking advanced image merging capabilities beyond simple overlays or cut-and-paste techniques.

Technical Specifications

  • Architecture: FLUX Kontext (image-to-image synthesis)
  • Parameters: Not publicly specified (experimental model, parameter count not disclosed)
  • Resolution: Supports standard image resolutions; typical use cases demonstrate 512x512 and 768x768 pixels, but may support higher resolutions depending on hardware constraints
  • Input/Output formats: Accepts standard image formats such as PNG and JPEG for both input and output; prompt input is plain text
  • Performance metrics: No formal benchmarks published; qualitative results indicate strong fidelity in object placement and blending when prompts are well-structured

Key Considerations

  • The quality of the combined image heavily depends on the clarity and specificity of the prompt; ambiguous instructions may lead to unexpected blending or artifacting
  • For best results, use high-quality, well-lit source images with clear subjects and minimal background clutter
  • The model may occasionally blend features from both images in unintended ways, especially when subjects overlap or are visually similar
  • Iterative refinement—generating multiple outputs and adjusting prompts—is often necessary to achieve optimal results
  • There is a trade-off between output quality and generation speed, especially at higher resolutions or with complex prompts
  • Prompt engineering is critical: explicitly describe the desired relationship between the two images (e.g., "place object A onto background B as a print, making it look natural")

Tips & Tricks

  • Use clear, descriptive prompts that specify both the source and target elements, as well as the desired interaction (e.g., "Place the dinosaur from the first image onto the mug from the second image as a print")
  • If features from both images blend undesirably, revise the prompt to clarify which elements should remain distinct or be emphasized
  • Generate several test images and evaluate the results, adjusting the prompt or input images as needed for improved consistency
  • For multi-character or multi-object scenes, describe each element separately and consider iterative editing to refine individual regions
  • When precise control is needed, mask and edit specific areas in post-processing, or use additional tools to adjust model influence per region
  • Upscale the final output using dedicated enhancement tools if higher resolution or finer detail is required

Capabilities

  • Combines two input images into a single output with context-aware blending and object placement
  • Supports prompt-driven control over how images are merged, including overlay, integration, or selective feature transfer
  • Maintains high fidelity in object appearance and naturalness of composition when provided with clear instructions
  • Adaptable to a variety of creative and professional use cases, including product mockups, scene composition, and visual storytelling
  • Capable of handling complex compositional tasks, such as placing characters or objects from one image into the context of another

What Can I Use It For?

  • Creating product mockups by placing logos or designs from one image onto objects in another (e.g., placing artwork onto merchandise)
  • Generating multi-character scenes for games or illustrations by merging independently designed characters into a shared environment
  • Producing visual narratives or storyboards by compositing elements from different images into a single, coherent scene
  • Artistic experimentation, such as blending styles or transferring textures between images for creative effects
  • Educational or research purposes, such as demonstrating compositional techniques or testing multimodal image synthesis

Things to Be Aware Of

  • As an experimental model, multi-image-kontext may exhibit unpredictable behaviors, especially with complex or ambiguous prompts
  • Users have reported occasional blending of features between images, leading to artifacts or loss of distinctiveness in subjects
  • Performance can vary depending on input image quality, prompt specificity, and hardware resources
  • High-resolution outputs may require more computational resources and longer generation times
  • Consistency across multiple generations can be improved by refining prompts and iteratively adjusting input parameters
  • Positive feedback highlights the model's flexibility and creative potential for compositional tasks
  • Some users note challenges in achieving perfect separation of features, especially when merging visually similar elements

Limitations

  • May struggle with precise separation of features when input images have overlapping or similar subjects
  • Not optimal for tasks requiring pixel-perfect alignment or photorealistic compositing in all scenarios
  • Experimental status means documentation, support, and performance guarantees may be limited compared to mature models

Pricing Detail

This model runs at a cost of $0.080 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.

Flux Multi Image Kontext | AI Model | Eachlabs