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Model infoModelsSnapshot: 15 Oct 2026

Alibaba Cloud / Wan 2.5

Wan 2.5 Image Editing Preview

Single-image editing and multi-image fusion from text instructions.

previewClosed weightsImage editing
Official documentation (opens in a new tab)Reviewed 14 Oct 2026
34 of 42 specification fields collected
Output resolution768×768 to 1280×1280 total pixelsSee specification notes below
Reference images33
Input billingSee ratesAlibaba Model Studio · Singapore · International
Output billingSee ratesPublished units and conditions below

Specifications

Provider-documented facts. “Not collected” means we have not verified that field yet, not that the feature is unsupported.

Context / input limit
Not collected
Maximum input tokens
Not collected
Maximum output
Not collected
Reasoning
Not collected
Tool calling
Not supportedSource for Tool calling (opens in a new tab)

Singapore card scope. See individual regions for differences.

Structured output
Not supportedSource for Structured output (opens in a new tab)

Singapore card scope. See individual regions for differences.

Streaming
Not collected
Batch processing
Not supportedSource for Batch processing (opens in a new tab)

Singapore card scope. See individual regions for differences.

Fine-tuning
Not supportedSource for Fine-tuning (opens in a new tab)

Singapore card scope. See individual regions for differences.

Knowledge cutoff
Not collected
Release date
2025-09-23Source for Release date (opens in a new tab)

Earliest reviewed regional release, not inferred from selector version.

Parameters
Not collected
Architecture
Not collected
Languages
Chinese, EnglishSource for Languages (opens in a new tab)

Documented prompt languages.

Context caching
Not supportedSource for Context caching (opens in a new tab)

Singapore card scope. See individual regions for differences.

Search grounding
Not supportedSource for Search grounding (opens in a new tab)

Singapore card scope. See individual regions for differences.

Prefix completion
Not supportedSource for Prefix completion (opens in a new tab)

Singapore card scope. See individual regions for differences.

API aliases
wan2.5-i2i-previewSource for API aliases (opens in a new tab)

The repeated snapshot section uses the same selector and does not establish another model.

Maximum prompt characters
2,000Source for Maximum prompt characters (opens in a new tab)

Characters, not tokens. Excess prompt characters are truncated.

Visible watermark
Optional AI Generated watermark, off by defaultSource for Visible watermark (opens in a new tab)
Random seed range
0–2,147,483,647; for multiple images, successive seeds are assigned from the starting seedSource for Random seed range (opens in a new tab)

The same seed does not guarantee identical output.

Output link expiry
Task IDs and generated image URLs expire after 24 hoursSource for Output link expiry (opens in a new tab)

This does not establish a complete input retention or training-use policy.

Output billing
Only successful output images count toward usage, including partial-success responses. Failed images do not add to image_count.Source for Output billing (opens in a new tab)
Usage metering
Price × actual generated image count, not text tokensSource for Usage metering (opens in a new tab)
Asynchronous generation
SupportedSource for Asynchronous generation (opens in a new tab)

Asynchronous jobs use X-DashScope-Async: enable and task polling. Sync and async are transports of the same model.

Request mode
Asynchronous legacy image2image API; X-DashScope-Async: enable, then poll the task ID. The newer messages/content protocol is not used.Source for Request mode (opens in a new tab)
Required request fields
input.prompt and input.images are required; image order mattersSource for Required request fields (opens in a new tab)
Negative prompts
At most 500 characters; excess is truncatedSource for Negative prompts (opens in a new tab)
Images per request
n=1–4 generated images; default 4Source for Images per request (opens in a new tab)
Prompt rewriting
prompt_extend=true by default; optional LLM-based prompt rewriting adds processing time.Source for Prompt rewriting (opens in a new tab)
Resolution controls
Explicit width*height; when omitted, approximately 1280×1280 total pixels following the last input image aspect ratio.Source for Resolution controls (opens in a new tab)
Output resolutions
768×768 to 1280×1280 total pixelsSource for Output resolutions (opens in a new tab)
Input image limits
One to three ordered reference images; each up to 10 MB, 384–5,000 pixels per side. Public HTTP(S) URL or Base64.Source for Input image limits (opens in a new tab)
Input image formats
JPEG, JPG, PNG (no alpha), BMP, WEBPSource for Input image formats (opens in a new tab)
Published availability regions
China (Beijing) · Chinese Mainland, Singapore · InternationalSource for Published availability regions (opens in a new tab)

Access & pricing

Prices belong to an endpoint and billing tier. A provider listing does not guarantee access for every account or region.

Alibaba Model Studio · Singapore · International

Provider source (opens in a new tab)
API model ID
wan2.5-i2i-preview
Access
POST https://{WorkspaceId}.ap-southeast-1.maas.aliyuncs.com/api/v1/services/aigc/image2image/image-synthesis. Asynchronous only: X-DashScope-Async: enable; poll /api/v1/tasks/{task_id}. Match workspace and region.
Regions
Singapore
Published request quota
300 requests per minuteSource for Published request quota (opens in a new tab)
Task submission rate
5 requests per secondSource for Task submission rate (opens in a new tab)
Quota scope
Primary account aggregate across RAM users, workspaces and API keys; each model has its own quotaSource for Quota scope (opens in a new tab)
Request mode
Asynchronous legacy image2image jobs onlySource for Request mode (opens in a new tab)
Free usage allowance
50 images; valid 90 days from latest activation, model release or approvalSource for Free usage allowance (opens in a new tab)

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 14 Oct 2026
CategoryUsageRateUnit
Image generationSuccessful output image1$0.03image

Rate conditions

  1. Published native USD list price per successfully generated image. International deployment. Actual generated image count determines cost; no token or text-question estimate.
Pricing source (opens in a new tab)

Data & enterprise terms

Generated task/image data lasts 24 hours. Input retention, training use and regional enterprise terms remain unverified.

Alibaba Model Studio · China (Beijing) · Chinese Mainland

Provider source (opens in a new tab)
API model ID
wan2.5-i2i-preview
Access
POST https://{WorkspaceId}.cn-beijing.maas.aliyuncs.com/api/v1/services/aigc/image2image/image-synthesis. Asynchronous only: X-DashScope-Async: enable; poll /api/v1/tasks/{task_id}. Match workspace and region.
Regions
China (Beijing)
Published request quota
300 requests per minuteSource for Published request quota (opens in a new tab)
Task submission rate
5 requests per secondSource for Task submission rate (opens in a new tab)
Quota scope
Primary account aggregate across RAM users, workspaces and API keys; each model has its own quotaSource for Quota scope (opens in a new tab)
Request mode
Asynchronous legacy image2image jobs onlySource for Request mode (opens in a new tab)

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 14 Oct 2026
CategoryUsageRateUnit
Image generationSuccessful output image1$0.028671image

Rate conditions

  1. Published native USD list price per successfully generated image. Chinese Mainland deployment. Actual generated image count determines cost; no token or text-question estimate.
Pricing source (opens in a new tab)

Data & enterprise terms

Generated task/image data lasts 24 hours. Input retention, training use and regional enterprise terms remain unverified.

Caching

Caching can reuse earlier input processing. Availability, lifetime and billing depend on the endpoint. A cache hit still generates a new response.

01 / INITIAL INPUTProcess & retain

The system processes eligible input and retains reusable state.

02 / LATER REQUESTCheck available state

Reuse depends on matching input, session state and the cache policy.

03 / CACHE HITReuse & generate

Reusing state can reduce repeated work. Any charges follow the billing rules below.

What the measurements say

No benchmark observations have been added for this model. We do not turn a vendor description into a performance score.

Latency and throughput depend on the host, request size, reasoning settings and load. There is no measured speed or global usage figure in this record.

The record behind the model

Why it is included

Classification inference: a separately documented native image API release has no exact checkpoint in the reviewed official Wan-AI public-weight inventory. Public Wan video checkpoints are not evidence of the image model weights. Private lineage, parameters and architecture remain unknown.

Classification evidence (opens in a new tab)

Lifecycle dates

Platform release · Singapore24 Sept 2025Source (opens in a new tab)
Platform release · China (Beijing)23 Sept 2025Source (opens in a new tab)

Sources reviewed