Flux Kontext Dev Multi

FLUX.1 Kontext Multi [dev] is a development version of the state-of-the-art image editing model that lets you edit multiple images using text prompts. It makes batch editing intuitive by understanding the relationship between visuals and language.

Features

FLUX.1 Kontext Multi [dev] is a development version of the state-of-the-art image editing model by Black Forest Labs that lets you edit multiple images using text prompts. It makes batch editing intuitive by understanding the relationship between visuals and language. You can make precise changes to multiple images at once — all while maintaining consistency across the batch.

Key Features

• Batch Processing: Edit multiple images simultaneously with consistent results.
• Context-Aware Editing: Intelligent understanding of image semantics for precise modifications that preserve natural aesthetics.
• Lightning Fast: Optimized neural architecture delivers professional results in seconds for real-time workflows.
• Precision Control: Granular control over transformations with intuitive parameters and fine-tuning capabilities.
• SOTA Quality: State-of-the-art results surpassing existing models across all quality benchmarks.

Use Cases

• Style Transfer: Convert multiple photos to different art styles, like watercolor, oil painting and sketches.
• Object/Clothing Changes: Modify hairstyles, add accessories, change colors across multiple images.
• Text Editing: Replace text in signs, posters, and labels in bulk.
• Background Swapping: Change environments while preserving subjects across multiple images.

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result

# Submit the task
curl --location --request POST "https://api.wavespeed.ai/api/v3/wavespeed-ai/flux-kontext-dev/multi" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}" \
--data-raw '{
    "prompt": "A man standing by the ocean, wearing a crisp white shirt with sleeves casually rolled up. He’s holding a fresh coconut in one hand and gazing toward the horizon. The beach is sunlit and peaceful, with soft waves, golden sand, and a gentle breeze ruffling his shirt. Relaxed and summery mood.",
    "images": [
        "https://d2g64w682n9w0w.cloudfront.net/media/images/1750946221123208007_M1YURNLH.png",
        "https://d2g64w682n9w0w.cloudfront.net/media/images/1750946250550516343_7mSOLHEA.webp",
        "https://d2g64w682n9w0w.cloudfront.net/media/images/1750946240650738815_zAOLGDzv.jpg"
    ],
    "size": "1024*1024",
    "num_inference_steps": 28,
    "guidance_scale": 2.5,
    "num_images": 1,
    "seed": -1,
    "enable_base64_output": false,
    "enable_safety_checker": true
}'

# Get the result
curl --location --request GET "https://api.wavespeed.ai/api/v3/predictions/${requestId}/result" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}"

Parameters

Task Submission Parameters

Request Parameters

Response Parameters

Result Query Parameters

Result Request Parameters

Result Response Parameters