Flux Kontext Dev Lora Ultra Fast

FLUX.1 Kontext LoRA Ultra Fast [dev] is an optimized, high-performance version of the state-of-the-art image editing model that lets you edit images using text prompts and LoRA models. It maintains the same high quality while delivering significantly faster processing times.

Features

FLUX.1 Kontext LoRA Ultra Fast [dev] is an optimized, high-performance version of the state-of-the-art image editing model by Black Forest Labs. It maintains all the powerful features of the original model while delivering significantly faster processing times. You can edit images using text prompts and LoRA models with exceptional speed without compromising on quality.

Key Features

• High Performance: Optimized processing pipeline for significantly faster image generation and editing.
• LoRA Support: Apply custom styles and transformations using LoRA models for personalized results.
• Context-Aware Editing: Intelligent understanding of image semantics for precise modifications that preserve natural aesthetics.
• 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 photos to different art styles using LoRA models.
• Object/Clothing Changes: Modify hairstyles, add accessories, change colors with style-specific LoRAs.
• Text Editing: Replace text in signs, posters, and labels.
• Background Swapping: Change environments while preserving subjects.

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-lora-ultra-fast" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}" \
--data-raw '{
    "prompt": "A restored and colorized vintage black-and-white photograph, removing scratches, dust, and tears. The image features enhanced clarity, natural skin tones, and realistic colors while preserving the original nostalgic atmosphere. The photo looks vivid and fresh, with balanced lighting and rich detail, as if carefully brought back to life from the past.",
    "image": "https://d2g64w682n9w0w.cloudfront.net/media/images/1750946150521827253_czYURNKG.jpg",
    "size": "1024*1024",
    "num_inference_steps": 28,
    "guidance_scale": 2.5,
    "num_images": 1,
    "seed": -1,
    "loras": [],
    "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