MODEL ID alibaba:qwen-image@layered
api-only

Qwen-Image-Layered

Alibaba
by Alibaba

Qwen-Image-Layered decomposes a static image into multiple RGBA layers, enabling independent editing of semantically distinct components without interfering with other parts of the image. This layered representation supports high-fidelity image editing tasks like resizing, repositioning, recoloring, and object manipulation with consistent detail and transparency handling.

Qwen-Image-Layered

API Options

Platform-level options for task execution and delivery.

taskType

string required value: imageInference

Identifier for the type of task being performed

taskUUID

string required UUID v4

UUID v4 identifier for tracking tasks and matching async responses. Must be unique per task.

outputType

string default: URL

Image output type.

Allowed values 3 values

outputFormat

string default: JPG

File format for the generated image.

Allowed values 3 values

outputQuality

integer min: 20 max: 99 default: 95

Compression quality of the output. Higher values preserve quality but increase file size.

webhookURL

string URI

Specifies a webhook URL where JSON responses will be sent via HTTP POST when generation tasks complete. For batch requests with multiple results, each completed item triggers a separate webhook call as it becomes available.

Learn more 1 resource

deliveryMethod

string default: sync

Determines how the API delivers task results.

Allowed values 2 values
Returns complete results directly in the API response.
Returns an immediate acknowledgment with the task UUID. Poll for results using getResponse.
Learn more 1 resource

uploadEndpoint

string URI

Specifies a URL where the generated content will be automatically uploaded using the HTTP PUT method. The raw binary data of the media file is sent directly as the request body. For secure uploads to cloud storage, use presigned URLs that include temporary authentication credentials.

Common use cases:

  • Cloud storage: Upload directly to S3 buckets, Google Cloud Storage, or Azure Blob Storage using presigned URLs.
  • CDN integration: Upload to content delivery networks for immediate distribution.
// S3 presigned URL for secure upload
https://your-bucket.s3.amazonaws.com/generated/content.mp4?X-Amz-Signature=abc123&X-Amz-Expires=3600

// Google Cloud Storage presigned URL
https://storage.googleapis.com/your-bucket/content.jpg?X-Goog-Signature=xyz789

// Custom storage endpoint
https://storage.example.com/uploads/generated-image.jpg

The content data will be sent as the request body to the specified URL when generation is complete.

safety

object

Content safety checking configuration for image generation.

Properties 2 properties
safety » checkContent

checkContent

boolean default: false

Enable or disable content safety checking. When enabled, defaults to 'fast' mode.

safety » mode

mode

string default: none

Safety checking mode for image generation.

Allowed values 2 values
Disables checking.
Performs a single check.

ttl

integer min: 60

Time-to-live (TTL) in seconds for generated content. Only applies when outputType is 'URL'.

includeCost

boolean default: false

Include task cost in the response.

numberResults

integer min: 1 max: 20 default: 1

Number of results to generate. Each result uses a different seed, producing variations of the same parameters.

Advanced caching mechanisms to speed up generation.

Properties 12 properties
acceleratorOptions » cacheEndStep

cacheEndStep

integer min: 1

Absolute step number to end caching. Must be greater than cacheStartStep and less than or equal to steps.

acceleratorOptions » cacheEndStepPercentage

cacheEndStepPercentage

integer min: 1 max: 100

Percentage of steps to end caching. Alternative to cacheEndStep. Must be greater than cacheStartStepPercentage.

acceleratorOptions » cacheMaxConsecutiveSteps

cacheMaxConsecutiveSteps

integer min: 1 max: 5 default: 3

Limits the maximum number of consecutive steps that can use cached computations before forcing a fresh computation.

acceleratorOptions » cacheStartStep

cacheStartStep

integer min: 0

Absolute step number to start caching. Must be less than cacheEndStep.

acceleratorOptions » cacheStartStepPercentage

cacheStartStepPercentage

integer min: 0 max: 99

Percentage of steps to start caching. Alternative to cacheStartStep. Must be less than cacheEndStepPercentage.

acceleratorOptions » fbCache

fbCache

boolean default: false

First Block Cache (FBCache) acceleration. Reuses feature block computations across steps.

acceleratorOptions » fbCacheThreshold

fbCacheThreshold

float min: 0 max: 1 step: 0.01 default: 0.25

Controls the sensitivity threshold for determining when to reuse cached computations. Lower values reuse more aggressively.

acceleratorOptions » teaCache

teaCache

boolean default: false

TeaCache acceleration for transformer-based models. Estimates step differences to skip redundant computations.

acceleratorOptions » teaCacheDistance

teaCacheDistance

float min: 0 max: 1 step: 0.01 default: 0.5

Controls the aggressiveness of the TeaCache feature. Lower values prioritize quality, higher values prioritize speed.

acceleratorOptions » dbCache

dbCache

boolean default: false

DB Cache (CacheDiT) acceleration. Caches and reuses intermediate transformer block outputs to skip redundant computations.

acceleratorOptions » dbCacheThreshold

dbCacheThreshold

float min: 0 max: 1 step: 0.01 default: 0.25

Controls the sensitivity threshold for DB Cache. Lower values reuse cached blocks more aggressively, higher values prioritize quality.

acceleratorOptions » dbCacheSkipInterval

dbCacheSkipInterval

integer min: 1 default: 5

Controls how many steps to skip between cache refreshes. Higher values skip more steps for faster generation at the cost of quality.

Inputs

Input resources for the task (images, audio, etc). These must be nested inside the inputs object.

inputs » referenceImages

referenceImages

array of strings required items: 1

List of reference images (UUID, URL, Data URI, or Base64).

Generation Parameters

Core parameters for controlling the generated content.

model

string required value: alibaba:qwen-image@layered

Identifier of the model to use for generation.

Learn more 3 resources

positivePrompt

string required min: 1 max: 32000

Text prompt describing elements to include in the generated output.

Learn more 2 resources

negativePrompt

string min: 1 max: 32000

Prompt to guide what to exclude from generation. Ignored when guidance is disabled (CFGScale ≤ 1).

Learn more 1 resource

width

integer min: 128 max: 2048 step: 16

Width of the generated media in pixels.

Learn more 2 resources

height

integer min: 128 max: 2048 step: 16

Height of the generated media in pixels.

Learn more 2 resources

seed

integer min: 0 max: 9223372036854776000

Random seed for reproducible generation. When not provided, a random seed is generated in the unsigned 32-bit range.

Learn more 1 resource

steps

integer min: 1 max: 50

Total number of denoising steps. Higher values generally produce more detailed results but take longer.

Learn more 1 resource

scheduler

string

Scheduler to use for the diffusion process.

Allowed values 75 values
Learn more 2 resources

CFGScale

float min: 1 max: 20 step: 0.01

Guidance scale representing how closely the images will resemble the prompt.

Learn more 1 resource

lora

array of objects min items: 1

With LoRA (Low-Rank Adaptation), you can adapt a model to specific styles or features by emphasizing particular aspects of the data. This technique enhances the quality and relevance of generated content and can be especially useful when the output needs to adhere to a specific artistic style or follow particular guidelines.

Multiple LoRA models can be used simultaneously to achieve different adaptation goals.

Examples 1 example
{
  "taskType": "imageInference",
  "taskUUID": "a770f077-f413-47de-9dac-be0b26a35da6",
  "positivePrompt": "a magical forest with glowing mushrooms, pixel art style",
  "model": "civitai:101055@128078",
  "height": 1024,
  "width": 1024,
  "lora": [ 
    { 
      "model": "civitai:120096@135931",
      "weight": 0.8
    } 
  ] 
}
Learn more 1 resource
Properties 3 properties
lora » model

model

string required

LoRA model identifier.

lora » weight

weight

float min: -4 max: 4 step: 0.01 default: 1

Strength of the LoRA influence. A value of 0 means no influence. Higher values increase the influence, and negative values can be used to steer away from the LoRA's style.

lora » transformer

transformer

string default: both

Transformer stages to apply LoRA. Some video models use separate high-noise and low-noise processing stages, and LoRAs can be selectively applied to optimize their effectiveness.

Allowed values 3 values
Apply LoRA only to the high-noise processing stage (coarse structure and early generation steps).
Apply LoRA only to the low-noise processing stage (fine details and later generation steps).
Apply LoRA to both stages for full coverage.

Settings

Technical parameters to fine-tune the inference process. These must be nested inside the settings object.

settings » trueCFGScale

trueCFGScale

float

True Classifier-Free Guidance scale. Higher values increase prompt adherence at the cost of quality.

Features

Standalone addons and post-processing features.

advancedFeatures » ultralytics

ultralytics

object

Configuration object for Ultralytics face enhancement during generation. This feature uses face detection and inpainting to improve facial details in the same generation step, without requiring post-processing.

Face enhancement is available for Stable Diffusion 1.X, SDXL, and FLUX models. The system automatically detects faces and applies targeted refinement to improve quality while maintaining consistency with the overall generation.

Properties 8 properties
advancedFeatures » ultralytics » CFGScale

CFGScale

float min: 0 max: 50 step: 0.1 default: 8

Face refinement guidance scale.

advancedFeatures » ultralytics » confidence

confidence

float min: 0 max: 1 step: 0.01 default: 0.9

Confidence threshold for detection.

advancedFeatures » ultralytics » maskBlur

maskBlur

integer min: 0 max: 100 default: 5

Mask feathering amount. Higher values create softer transitions between the enhanced face region and surrounding areas.

advancedFeatures » ultralytics » maskPadding

maskPadding

integer min: 0 max: 20 default: 5

Padding around detected face in pixels. Expands the refinement area to include surrounding context like hair and neck.

advancedFeatures » ultralytics » negativePrompt

Negative prompt for detection.

advancedFeatures » ultralytics » positivePrompt

Positive prompt for detection.

advancedFeatures » ultralytics » steps

steps

integer min: 1 max: 100 default: 20

Number of face refinement steps.

advancedFeatures » ultralytics » strength

strength

float min: 0 max: 1 step: 0.01 default: 0.3

Refinement strength. Lower values preserve more of the original, higher values allow more aggressive reconstruction.