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Wan - text-to-video API reference (2.1-2.6)

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The Wan text-to-video model generates smooth videos from text prompts.

References: User guide

Availability

To ensure successful calls, the model, Endpoint URL, and API Key must all belong to the same region. Cross-region calls will fail.

Note

The sample code in this topic applies to the Beijing region.

Important

Alibaba Cloud Model Studio has released workspace-specific domains for the China (Beijing) and Singapore regions. The new dedicated domains deliver superior performance and higher stability for inference requests. We recommend migrating to the new domains:

  • China (Beijing): from https://dashscope.aliyuncs.com to https://{WorkspaceId}.cn-beijing.maas.aliyuncs.com

  • Singapore: from https://dashscope-intl.aliyuncs.com to https://{WorkspaceId}.ap-southeast-1.maas.aliyuncs.com

{WorkspaceId} is your workspace ID, which can be found on the Workspace Details page in the Alibaba Cloud Model Studio console. The existing domain remains fully functional.

HTTP

Important

This API uses the legacy protocol and supports wan2.6 and earlier models (wan2.5/wan2.2/wanx2.1).

Because text-to-video tasks take a long time (typically 1 to 5 minutes), the API uses asynchronous invocation. The entire process involves two core steps: Create a task -> Poll for the result. The process is as follows:

Step 1: Create a task and get the task ID

Beijing

POST https://{WorkspaceId}.cn-beijing.maas.aliyuncs.com/api/v1/services/aigc/video-generation/video-synthesis

Replace {WorkspaceId} with your actual workspace ID.

Singapore

POST https://{WorkspaceId}.ap-southeast-1.maas.aliyuncs.com/api/v1/services/aigc/video-generation/video-synthesis

Replace {WorkspaceId} with your actual workspace ID.

Virginia

POST https://{WorkspaceId}.us-east-1.maas.aliyuncs.com/api/v1/services/aigc/video-generation/video-synthesis

Frankfurt

POST https://{WorkspaceId}.eu-central-1.maas.aliyuncs.com/api/v1/services/aigc/video-generation/video-synthesis

Replace {WorkspaceId} with your actual workspace ID.

Note

  • After the task is created, use the returned task_id to query the result. The task_id is valid for 24 hours. Do not create duplicate tasks. Instead, use polling to retrieve the result.

  • For guidance for beginners, see Call APIs with Postman or cURL.

Request parameters

Multi-shot narrative

  • For a multi-shot video, shot_type must be set to "multi".

  • For a multi-shot video, prompt_extend must be set to true to enable prompt rewriting for shot description optimization.

# Beijing region URL. Replace {WorkspaceId} with your actual workspace ID. URLs vary by region.
curl --location 'https://{WorkspaceId}.cn-beijing.maas.aliyuncs.com/api/v1/services/aigc/video-generation/video-synthesis' \
    -H 'X-DashScope-Async: enable' \
    -H "Authorization: Bearer $DASHSCOPE_API_KEY" \
    -H 'Content-Type: application/json' \
    -d '{
    "model": "wan2.6-t2v",
    "input": {
        "prompt": "An epically cute scene. A small, adorable cartoon cat general, wearing finely detailed golden armor and a slightly oversized helmet, stands bravely on a cliff. He rides a small but valiant warhorse and says, 'The long clouds of Qinghai darken the snowy mountains, a lone city gazes at Yumen Pass. Through a hundred battles in the yellow sand, my golden armor is worn, but I will not return until Loulan is broken.' Below the cliff, a vast, endless army of mice with makeshift weapons charges forward. This is a dramatic, large-scale battle scene inspired by ancient Chinese war epics. In the distance, dark clouds gather over the snowy mountains. The overall atmosphere is a comical and epic fusion of 'cute' and 'domineering'.",
        "audio_url": "https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20250923/hbiayh/%E4%BB%8E%E5%86%9B%E8%A1%8C.mp3"
    },
    "parameters": {
        "size": "1280*720",
        "prompt_extend": true,
        "duration": 10,
        "shot_type":"multi"
    }
}'

Provide an audio file

Supported models: wan2.6/wan2.5 series models.

You can provide the URL of a custom audio file using the input.audio_url parameter.

# Beijing region URL. Replace {WorkspaceId} with your actual workspace ID. URLs vary by region.
curl --location 'https://{WorkspaceId}.cn-beijing.maas.aliyuncs.com/api/v1/services/aigc/video-generation/video-synthesis' \
    -H 'X-DashScope-Async: enable' \
    -H "Authorization: Bearer $DASHSCOPE_API_KEY" \
    -H 'Content-Type: application/json' \
    -d '{
    "model": "wan2.5-t2v-preview",
    "input": {
        "prompt": "An epically cute scene. A small, adorable cartoon cat general, wearing finely detailed golden armor and a slightly oversized helmet, stands bravely on a cliff. He rides a small but valiant warhorse and says, 'The long clouds of Qinghai darken the snowy mountains, a lone city gazes at Yumen Pass. Through a hundred battles in the yellow sand, my golden armor is worn, but I will not return until Loulan is broken.' Below the cliff, a vast, endless army of mice with makeshift weapons charges forward. This is a dramatic, large-scale battle scene inspired by ancient Chinese war epics. In the distance, dark clouds gather over the snowy mountains. The overall atmosphere is a comical and epic fusion of 'cute' and 'domineering'.",
        "audio_url": "https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20250923/hbiayh/%E4%BB%8E%E5%86%9B%E8%A1%8C.mp3"
    },
    "parameters": {
        "size": "832*480",
        "prompt_extend": true,
        "duration": 10
    }
}'

Automatic dubbing

Supported models: wan2.6/wan2.5 series models.

If you do not provide input.audio_url, the model automatically generates matching background music or sound effects based on the video content.

# Beijing region URL. Replace {WorkspaceId} with your actual workspace ID. URLs vary by region.
curl --location 'https://{WorkspaceId}.cn-beijing.maas.aliyuncs.com/api/v1/services/aigc/video-generation/video-synthesis' \
    -H 'X-DashScope-Async: enable' \
    -H "Authorization: Bearer $DASHSCOPE_API_KEY" \
    -H 'Content-Type: application/json' \
    -d '{
    "model": "wan2.5-t2v-preview",
    "input": {
        "prompt": "An epically cute scene. A small, adorable cartoon cat general, wearing finely detailed golden armor and a slightly oversized helmet, stands bravely on a cliff. He rides a small but valiant warhorse and says, 'The long clouds of Qinghai darken the snowy mountains, a lone city gazes at Yumen Pass. Through a hundred battles in the yellow sand, my golden armor is worn, but I will not return until Loulan is broken.' Below the cliff, a vast, endless army of mice with makeshift weapons charges forward. This is a dramatic, large-scale battle scene inspired by ancient Chinese war epics. In the distance, dark clouds gather over the snowy mountains. The overall atmosphere is a comical and epic fusion of 'cute' and 'domineering'."
    },
    "parameters": {
        "size": "832*480",
        "prompt_extend": true,
        "duration": 10
    }
}'

Generate a silent video

Only the wan2.2 and wanx2.1 series models support silent video generation. These models generate silent videos by default, and no additional configuration is required.

The wan2.6 and wan2.5 series models generate videos with audio by default.
# Beijing region URL. Replace {WorkspaceId} with your actual workspace ID. URLs vary by region.
curl --location 'https://{WorkspaceId}.cn-beijing.maas.aliyuncs.com/api/v1/services/aigc/video-generation/video-synthesis' \
    -H 'X-DashScope-Async: enable' \
    -H "Authorization: Bearer $DASHSCOPE_API_KEY" \
    -H 'Content-Type: application/json' \
    -d '{
    "model": "wan2.2-t2v-plus",
    "input": {
        "prompt": "Low contrast, in a retro 70s-style subway station, a street musician plays amidst dim colors and rough textures. He wears an old-fashioned jacket, holds a guitar, and plays with concentration. Commuters hurry by, and a small crowd gradually gathers to listen. The camera slowly moves to the right, capturing the scene where the sound of the instrument intertwines with the city's hustle and bustle, with old-style subway signs and mottled walls in the background."
    },
    "parameters": {
        "size": "832*480",
        "prompt_extend": true
    }
}'

Use a negative prompt

Supported models: All models.

Use the negative_prompt parameter to exclude the "flower" element and prevent it from appearing in the video.

# Beijing region URL. Replace {WorkspaceId} with your actual workspace ID. URLs vary by region.
curl --location 'https://{WorkspaceId}.cn-beijing.maas.aliyuncs.com/api/v1/services/aigc/video-generation/video-synthesis' \
    -H 'X-DashScope-Async: enable' \
    -H "Authorization: Bearer $DASHSCOPE_API_KEY" \
    -H 'Content-Type: application/json' \
    -d '{
    "model": "wan2.2-t2v-plus",
    "input": {
        "prompt": "A kitten running in the moonlight",
        "negative_prompt": "flower"
    },
    "parameters": {
        "size": "832*480"
    }
}'
Request headers

Content-Type string (Required)

The content type of the request. Must be application/json.

Authorization string (Required)

Authenticates the request with a Model Studio API key. Example: Bearer sk-xxxx.

X-DashScope-Async string (Required)

Enables asynchronous processing. HTTP requests support only asynchronous calls. Must be enable.

Important

If this request header is missing, the error "current user api does not support synchronous calls" is returned.
Request body

model string (Required)

The name of the model to use. For a list of available models, see the model list.

Example: wan2.6-t2v.

input object (Required)

Contains basic input information, such as the prompt.

Properties

prompt string (Required)

The text prompt. It describes the desired elements and visual characteristics of the generated video.

The prompt can be in Chinese or English. The length is measured in characters, where each Chinese character or letter is counted as one character. Text that exceeds the character limit is automatically truncated. The length limit varies by model version:

  • wan2.6 and wan2.5 series models: Up to 1,500 characters.

  • wan2.2 and wanx2.1 series models: Up to 800 characters.

Example: A kitten running in the moonlight.

For more information, see the Text-to-video/image-to-video prompt guide.

negative_prompt string (Optional)

A prompt that describes the content to exclude from the video. This helps refine the generated content.

The prompt can be in Chinese or English. The maximum length is 500 characters. Text that exceeds this limit is automatically truncated.

Example: low resolution, error, worst quality, low quality, deformed, extra fingers, bad proportions.

audio_url string (Optional)

Supported models: wan2.6 and wan2.5 series models.

The URL of the audio file. The model will use this audio to generate the video.

Supported input formats:

  1. Public URL:

    • Supports the HTTP and HTTPS protocols.

    • Example: https://help-static-aliyun-doc.aliyuncs.com/xxx.mp3.

  2. Temporary URL:

Audio limits:

  • Format: wav, mp3.

  • Duration: 3 to 30 s.

  • File size: Up to 15 MB.

  • Handling audio that exceeds the specified duration: If the audio is longer than the value specified for the duration parameter (for example, 5 seconds), the audio is truncated to the specified duration. If the audio is shorter than the video duration, the remaining part of the video is silent. For example, if the audio is 3 seconds long and the video is 5 seconds long, the first 3 seconds of the video will have audio and the last 2 seconds will be silent.

parameters object (Optional)

Video processing parameters, such as setting the video resolution, enabling prompt rewriting, and adding a watermark.

Properties

size string (Optional)

Important

  • The size directly affects the cost. Before making a call, review the model pricing.

  • The size must be set to a specific value, such as 1280*720, not an aspect ratio such as 1:1 or a resolution tier such as 480P.

Specifies the resolution of the generated video in width*height format. The default value and valid values for this parameter depend on the model parameter, as described below:

  • wan2.6-t2v: The default value is 1920*1080 (1080P). Valid resolutions include all resolutions in the 720P and 1080P tiers.

  • wan2.6-t2v-us: The default value is 1920*1080 (1080P). Valid resolutions include all resolutions in the 720P and 1080P tiers.

  • wan2.5-t2v-preview: The default value is 1920*1080 (1080P). Valid resolutions include all resolutions in the 480P, 720P, and 1080P tiers.

  • wan2.2-t2v-plus: The default value is 1920*1080 (1080P). Valid resolutions include all resolutions in the 480P and 1080P tiers.

  • wanx2.1-t2v-turbo: The default value is 1280*720 (720P). Valid resolutions include all resolutions in the 480P and 720P tiers.

  • wanx2.1-t2v-plus: The default value is 1280*720 (720P). Valid resolutions include all resolutions in the 720P tier.

480P tier: The valid video resolutions and their corresponding aspect ratios are:

  • 832*480: 16:9.

  • 480*832: 9:16.

  • 624*624: 1:1.

720P tier: The valid video resolutions and their corresponding aspect ratios are:

  • 1280*720: 16:9.

  • 720*1280: 9:16.

  • 960*960: 1:1.

  • 1088*832: 4:3.

  • 832*1088: 3:4.

1080P tier: The valid video resolutions and their corresponding aspect ratios are:

  • 1920*1080: 16:9.

  • 1080*1920: 9:16.

  • 1440*1440: 1:1.

  • 1632*1248: 4:3.

  • 1248*1632: 3:4.

duration integer (Optional)

Important

The duration directly affects the cost. Cost = Unit price (based on resolution) × Duration (in seconds). Before making a call, review the model pricing.

The duration of the generated video in seconds. The valid values for this parameter depend on the model parameter:

  • wan2.6-t2v: An integer from 2 to 15. The default value is 5.

  • wan2.6-t2v-us: Valid values are 5 and 10. The default value is 5.

  • wan2.5-t2v-preview: Valid values are 5 and 10. The default value is 5.

  • wan2.2-t2v-plus: Fixed at 5 seconds and cannot be changed.

  • wanx2.1-t2v-plus: Fixed at 5 seconds and cannot be changed.

  • wanx2.1-t2v-turbo: Fixed at 5 seconds and cannot be changed.

prompt_extend boolean (Optional)

Specifies whether to enable prompt rewriting. When enabled, a model intelligently rewrites the input prompt. This significantly improves the quality of the generated video for shorter prompts but increases the running time.

  • true (default)

  • false

shot_type string (Optional)

Supported models: wan2.6 models.

Specifies the shot type of the generated video, that is, whether the video consists of a single continuous shot or multiple changing shots.

Valid values:

  • single: Default value. Outputs a single-shot video.

  • multi: Outputs a multi-shot video.

Condition: This parameter takes effect only when "prompt_extend": true is set.

Parameter priority: shot_type > prompt. For example, if shot_type is set to "single", the model outputs a single-shot video even if the prompt contains "generate a multi-shot video".

watermark boolean (Optional)

Specifies whether to add a watermark. The watermark is placed in the lower-right corner of the video with the fixed text "AI Generated".

  • false (default)

  • true

seed integer (Optional)

The random number seed must be an integer in the range [0, 2147483647].

If not specified, a random seed is generated. A fixed seed improves reproducibility.

Because model generation is probabilistic, the same seed does not guarantee identical results.

Response parameters

Successful response

Save the task_id to query the task status and result.

{
    "output": {
        "task_status": "PENDING",
        "task_id": "0385dc79-5ff8-4d82-bcb6-xxxxxx"
    },
    "request_id": "4909100c-7b5a-9f92-bfe5-xxxxxx"
}

Error response

Task creation failed. See Error codes.

{
    "code": "InvalidApiKey",
    "message": "Invalid API-key provided.",
    "request_id": "7438d53d-6eb8-4596-8835-xxxxxx"
}

output object

Contains the task output information.

Properties

task_id string

The task ID. Valid for queries for 24 hours.

task_status string

The status of the task.

Enumeration values

  • PENDING

  • RUNNING

  • SUCCEEDED

  • FAILED

  • CANCELED

  • UNKNOWN: The task does not exist or its status is unknown.

request_id string

Unique request identifier for tracing and troubleshooting.

code string

Error code. Returned only for failed requests. See Error codes.

message string

Detailed error message. Returned only for failed requests. See Error codes.

Step 2: Query the result by task ID

Beijing

GET https://{WorkspaceId}.cn-beijing.maas.aliyuncs.com/api/v1/tasks/{task_id}

Replace {WorkspaceId} with your actual workspace ID.

Singapore

GET https://{WorkspaceId}.ap-southeast-1.maas.aliyuncs.com/api/v1/tasks/{task_id}

Replace {WorkspaceId} with your actual workspace ID.

Virginia

GET https://{WorkspaceId}.us-east-1.maas.aliyuncs.com/api/v1/tasks/{task_id}

Frankfurt

GET https://{WorkspaceId}.eu-central-1.maas.aliyuncs.com/api/v1/tasks/{task_id}

Replace {WorkspaceId} with your actual workspace ID.

Note

  • Polling recommendation: Video generation takes several minutes. Use a polling mechanism with a reasonable interval, such as 15 seconds.

  • Task state transition: PENDING → RUNNING → SUCCEEDED or FAILED.

  • Result link: After a task succeeds, a video URL valid for 24 hours is returned. Download and save the video to permanent storage, such as OSS.

  • task_id validity: 24 hours. After this period, queries return the task status as UNKNOWN.

  • RPS limit: The default RPS for the query API is 20. For higher-frequency queries or event notifications, we recommend that you configure an asynchronous task callback.

  • More operations: For batch queries, task cancellation, and other operations, see Manage asynchronous tasks.

Request parameters

Query task result

Replace {task_id} with the task_id value returned by the previous API call. The task_id is valid for queries for 24 hours, Replace {WorkspaceId} with your actual workspace ID.

curl -X GET https://{WorkspaceId}.cn-beijing.maas.aliyuncs.com/api/v1/tasks/{task_id} \
--header "Authorization: Bearer $DASHSCOPE_API_KEY"
Request headers

Authorization string (Required)

Authenticates the request with a Model Studio API key. Example: Bearer sk-xxxx.
URL path parameters

task_id string (Required)

The ID of the task.

Response parameters

Task successful

Video URLs are valid for only 24 hours and then automatically purged. Save generated videos promptly.

{
    "request_id": "caa62a12-8841-41a6-8af2-xxxxxx",
    "output": {
        "task_id": "eff1443c-ccab-4676-aad3-xxxxxx",
        "task_status": "SUCCEEDED",
        "submit_time": "2025-09-29 14:18:52.331",
        "scheduled_time": "2025-09-29 14:18:59.290",
        "end_time": "2025-09-29 14:23:39.407",
        "orig_prompt": "An epically cute scene. A small, adorable cartoon cat general, wearing finely detailed golden armor and a slightly oversized helmet, stands bravely on a cliff. He rides a small but valiant warhorse and says, 'The long clouds of Qinghai darken the snowy mountains, a lone city gazes at Yumen Pass. Through a hundred battles in the yellow sand, my golden armor is worn, but I will not return until Loulan is broken.' Below the cliff, a vast, endless army of mice with makeshift weapons charges forward. This is a dramatic, large-scale battle scene inspired by ancient Chinese war epics. In the distance, dark clouds gather over the snowy mountains. The overall atmosphere is a comical and epic fusion of 'cute' and 'domineering'.",
        "video_url": "https://dashscope-result-sh.oss-accelerate.aliyuncs.com/xxx.mp4?Expires=xxx"
    },
    "usage": {
        "duration": 10,
        "size": "1280*720",
        "input_video_duration": 0,
        "output_video_duration": 10,
        "video_count": 1,
        "SR": 720
    }
}

Task failed

When a task fails, task_status is FAILED with an error code and message. See Error codes.

{
    "request_id": "e5d70b02-ebd3-98ce-9fe8-759d7d7b107d",
    "output": {
        "task_id": "86ecf553-d340-4e21-af6e-a0c6a421c010",
        "task_status": "FAILED",
        "code": "InvalidParameter",
        "message": "The size is not match xxxxxx"
    }
}

Task query expired

The task_id is valid for 24 hours. After this period, queries return the following error.

{
    "request_id": "a4de7c32-7057-9f82-8581-xxxxxx",
    "output": {
        "task_id": "502a00b1-19d9-4839-a82f-xxxxxx",
        "task_status": "UNKNOWN"
    }
}

output object

Contains the task output information.

Properties

task_id string

The task ID. Valid for queries for 24 hours.

task_status string

The status of the task.

Enumeration values

  • PENDING

  • RUNNING

  • SUCCEEDED

  • FAILED

  • CANCELED

  • UNKNOWN: The task does not exist or its status is unknown.

State transitions during polling:

  • PENDING → RUNNING → SUCCEEDED or FAILED.

  • The initial query status is usually PENDING or RUNNING.

  • When the status changes to SUCCEEDED, the response contains the generated video URL.

  • If the status is FAILED, check the error message and retry the task.

submit_time string

The time when the task was submitted. format is YYYY-MM-DD HH:mm:ss.SSS.

scheduled_time string

The time when the task was executed. format is YYYY-MM-DD HH:mm:ss.SSS.

end_time string

The time when the task was completed. format is YYYY-MM-DD HH:mm:ss.SSS.

video_url string

URL of the generated video. Returned only when task_status is SUCCEEDED.

Valid for 24 hours. The video is in MP4 format with H.264 encoding.

orig_prompt string

The original input prompt, corresponding to the request parameter prompt.

actual_prompt string

When prompt_extend=true, the system rewrites the input prompt. This field returns the optimized prompt used for generation.

  • If prompt_extend=false, this field is not returned.

  • Note: The wan2.6 model does not return this field, regardless of the value of prompt_extend.

code string

Error code. Returned only for failed requests. See Error codes.

message string

Detailed error message. Returned only for failed requests. See Error codes.

usage object

Contains statistics about the output. This information is provided only for successful tasks.

Properties

video_duration integer

Returned only when using wan2.5 and earlier models. Used for billing.

The duration of the generated video in seconds. Valid values are 5 and 10.

duration float

Returned only when using the wan2.6 model. Used for billing.

Indicates the total video duration, where duration = input_video_duration + output_video_duration.

input_video_duration integer

Returned only when using the wan2.6 model. Fixed at 0.

output_video_duration integer

Returned only when using the wan2.6 model.

The duration of the output video in seconds. Its value is the same as the value of input.duration.

SR integer

Returned only when using the wan2.6 model. The resolution tier of the generated video. Example: 720.

size string

Returned only when using the wan2.6 model. The resolution of the generated video. The format is "width*height". Example: 1920*1080.

video_ratio string

Returned only when using wan2.5 and earlier models. The resolution of the generated video. The format is "width*height". Example: 832*480.

video_count integer

The number of generated videos. Fixed at 1.

request_id string

Unique request identifier for tracing and troubleshooting.

DashScope SDK

The parameter names in the SDK are mostly consistent with the HTTP API, and the parameter structure is encapsulated to align with the features of the programming language.

Because text-to-video tasks can take a long time to complete (typically 1 to 5 minutes), the SDK encapsulates the HTTP asynchronous call process and supports both synchronous and asynchronous invocation methods.

The actual processing time depends on the number of tasks in the queue and the service status. Wait for the result.

Python

Important

Make sure your DashScope Python SDK version is at least 1.25.16 before running the following code.

If you use an older version, you may encounter errors such as "url error, please check url!". To update the SDK, see Install the SDK.

Set dashscope.base_http_api_url based on the region where the model is located:

Beijing

dashscope.base_http_api_url = 'https://{WorkspaceId}.cn-beijing.maas.aliyuncs.com/api/v1'

Replace {WorkspaceId} with your actual workspace ID.

Singapore

dashscope.base_http_api_url = 'https://{WorkspaceId}.ap-southeast-1.maas.aliyuncs.com/api/v1'

Replace {WorkspaceId} with your actual workspace ID.

Virginia

dashscope.base_http_api_url = 'https://{WorkspaceId}.us-east-1.maas.aliyuncs.com/api/v1'

Frankfurt

dashscope.base_http_api_url = 'https://{WorkspaceId}.eu-central-1.maas.aliyuncs.com/api/v1'

Replace {WorkspaceId} with your actual workspace ID.

Synchronous invocation

Request example
from http import HTTPStatus
from dashscope import VideoSynthesis
import dashscope
import os

# Beijing region URL. Replace {WorkspaceId} with your actual workspace ID. URLs vary by region. For more information, see https://help.aliyun.com/en/model-studio/text-to-video-api-reference.
dashscope.base_http_api_url = 'https://{WorkspaceId}.cn-beijing.maas.aliyuncs.com/api/v1'

# If no environment variable is configured, replace with your Model Studio API key: api_key="sk-xxx".
# API keys vary by region. For more information, see https://help.aliyun.com/en/model-studio/get-api-key.
api_key = os.getenv("DASHSCOPE_API_KEY")

def sample_sync_call_t2v():
    # Call the sync API and return the result.
    print('Please wait...')
    rsp = VideoSynthesis.call(api_key=api_key,
                              model='wan2.6-t2v',
                              prompt='An epic and cute scene. A small, adorable cartoon kitten general, wearing exquisitely detailed golden armor and a slightly oversized helmet, stands bravely on a cliff. He rides a small but heroic warhorse and says: "The long clouds of Qinghai darken the snowy mountains, a lone city gazes at Yumen Pass from afar. Through a hundred battles in the yellow sand, the golden armor is worn, but we will not return until we have broken Loulan". Below the cliff, a vast and endless army of mice with makeshift weapons is charging forward. This is a dramatic, large-scale battle scene inspired by ancient Chinese war epics. In the distance, dark clouds gather in the sky over the snowy mountains. The overall atmosphere is a comical and epic fusion of "cute" and "domineering".',
                              audio_url='https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20250923/hbiayh/%E4%BB%8E%E5%86%9B%E8%A1%8C.mp3',
                              size='1280*720',
                              duration=10,
                              negative_prompt="",
                              prompt_extend=True,
                              watermark=False,
                              seed=12345)
    print(rsp)
    if rsp.status_code == HTTPStatus.OK:
        print(rsp.output.video_url)
    else:
        print('Failed. Status code: %s, code: %s, message: %s' %
              (rsp.status_code, rsp.code, rsp.message))


if __name__ == '__main__':
    sample_sync_call_t2v()
Response example
The video_url is valid for 24 hours. Download promptly.
{
    "status_code": 200,
    "request_id": "167f3beb-3dd0-47fe-a83c-xxxxxx",
    "code": null,
    "message": "",
    "output": {
        "task_id": "5b65411f-d946-4e29-859e-xxxxxx",
        "task_status": "SUCCEEDED",
        "video_url": "https://dashscope-result-bj.oss-accelerate.aliyuncs.com/xxx.mp4?Expires=xxx",
        "submit_time": "2025-10-23 11:47:23.879",
        "scheduled_time": "2025-10-23 11:47:34.351",
        "end_time": "2025-10-23 11:52:35.323",
        "orig_prompt": "An epic and cute scene featuring a small, adorable cartoon kitten general. Wearing exquisitely detailed golden armor and a slightly oversized helmet, he stands bravely on a cliff. He rides a small but heroic warhorse and recites: 'The long clouds of Qinghai darken the snowy mountains, a lone city gazes at Yumen Pass from afar. Through a hundred battles in the yellow sand, the golden armor is worn, but we will not return until we have broken Loulan.' Below the cliff, a vast army of mice with makeshift weapons charges forward. The scene is a dramatic, large-scale battle inspired by ancient Chinese war epics. In the distance, dark clouds gather over snowy mountains. The overall atmosphere is a comical and epic fusion of 'cute' and 'domineering'."
    },
    "usage": {
        "video_count": 1,
        "duration": 10,
        "size": "1280*720",
        "input_video_duration": 0,
        "output_video_duration": 10,
        "SR": 720
    }
}

Asynchronous invocation

Request example
from http import HTTPStatus
from dashscope import VideoSynthesis
import dashscope
import os

# Beijing region URL. Replace {WorkspaceId} with your actual workspace ID. URLs vary by region. For more information, see https://help.aliyun.com/en/model-studio/text-to-video-api-reference.
dashscope.base_http_api_url = 'https://{WorkspaceId}.cn-beijing.maas.aliyuncs.com/api/v1'

# If no environment variable is configured, replace with your Model Studio API key: api_key="sk-xxx".
# API keys vary by region. For more information, see https://help.aliyun.com/en/model-studio/get-api-key.
api_key = os.getenv("DASHSCOPE_API_KEY")

def sample_async_call_t2v():
    # Call the asynchronous API and obtain task information.
    # Use the task ID to check the status.
    rsp = VideoSynthesis.async_call(api_key=api_key,
                                    model='wan2.6-t2v',
                                    prompt='An epic and cute scene. A small, adorable cartoon kitten general, wearing exquisitely detailed golden armor and a slightly oversized helmet, stands bravely on a cliff. He rides a small but heroic warhorse and says: "The long clouds of Qinghai darken the snowy mountains, a lone city gazes at Yumen Pass from afar. Through a hundred battles in the yellow sand, the golden armor is worn, but we will not return until we have broken Loulan". Below the cliff, a vast and endless army of mice with makeshift weapons is charging forward. This is a dramatic, large-scale battle scene inspired by ancient Chinese war epics. In the distance, dark clouds gather in the sky over the snowy mountains. The overall atmosphere is a comical and epic fusion of \'cute\' and \'domineering\'.',
                                    audio_url='https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20250923/hbiayh/%E4%BB%8E%E5%86%9B%E8%A1%8C.mp3',
                                    size='1280*720',
                                    duration=10,
                                    negative_prompt="",
                                    prompt_extend=True,
                                    watermark=False,
                                    seed=12345)
    print(rsp)
    if rsp.status_code == HTTPStatus.OK:
        print("task_id: %s" % rsp.output.task_id)
    else:
        print('Failed, status_code: %s, code: %s, message: %s' %
              (rsp.status_code, rsp.code, rsp.message))
                           
    # Obtain the task information, including the task status.
    status = VideoSynthesis.fetch(task=rsp, api_key=api_key)
    if status.status_code == HTTPStatus.OK:
        print(status.output.task_status)  # Check the task status.
    else:
        print('Failed, status_code: %s, code: %s, message: %s' %
              (status.status_code, status.code, status.message))

    # Wait for the task to complete. This calls fetch at intervals and checks if the task is in a finished state.
    rsp = VideoSynthesis.wait(task=rsp, api_key=api_key)
    print(rsp)
    if rsp.status_code == HTTPStatus.OK:
        print(rsp.output.video_url)
    else:
        print('Failed, status_code: %s, code: %s, message: %s' %
              (rsp.status_code, rsp.code, rsp.message))


if __name__ == '__main__':
    sample_async_call_t2v()
Response example

1. Example of a response to a task creation request

{
	"status_code": 200,
	"request_id": "c86ff7ba-8377-917a-90ed-xxxxxx",
	"code": "",
	"message": "",
	"output": {
		"task_id": "721164c6-8619-4a35-a6d9-xxxxxx",
		"task_status": "PENDING",
		"video_url": ""
	},
	"usage": null
}

2. Example of a response to a task query request

The video URL expires in 24 hours. Please download the video before it expires.
{
    "status_code": 200,
    "request_id": "167f3beb-3dd0-47fe-a83c-xxxxxx",
    "code": null,
    "message": "",
    "output": {
        "task_id": "5b65411f-d946-4e29-859e-xxxxxx",
        "task_status": "SUCCEEDED",
        "video_url": "https://dashscope-result-bj.oss-accelerate.aliyuncs.com/xxx.mp4?Expires=xxx",
        "submit_time": "2025-10-23 11:47:23.879",
        "scheduled_time": "2025-10-23 11:47:34.351",
        "end_time": "2025-10-23 11:52:35.323",
        "orig_prompt": "An epic and cute scene featuring a small, adorable cartoon kitten general. Wearing exquisitely detailed golden armor and a slightly oversized helmet, he stands bravely on a cliff. He rides a small but heroic warhorse and recites: 'The long clouds of Qinghai darken the snowy mountains, a lone city gazes at Yumen Pass from afar. Through a hundred battles in the yellow sand, the golden armor is worn, but we will not return until we have broken Loulan.' Below the cliff, a vast army of mice with makeshift weapons charges forward. The scene is a dramatic, large-scale battle inspired by ancient Chinese war epics. In the distance, dark clouds gather over snowy mountains. The overall atmosphere is a comical and epic fusion of 'cute' and 'domineering'."
    },
    "usage": {
        "video_count": 1,
        "duration": 10,
        "size": "1280*720",
        "input_video_duration": 0,
        "output_video_duration": 10,
        "SR": 720
    }
}

Java

Important

Ensure your DashScope Java software development kit (SDK) version is at least 2.22.14 before you run the following code.

If you use an older version, you may encounter errors such as "url error, please check url!". To update the SDK, see Install the SDK.

Set Constants.baseHttpApiUrl based on the region where the model is located:

Beijing

Constants.baseHttpApiUrl = "https://{WorkspaceId}.cn-beijing.maas.aliyuncs.com/api/v1";

Replace {WorkspaceId} with your actual workspace ID.

Singapore

Constants.baseHttpApiUrl = "https://{WorkspaceId}.ap-southeast-1.maas.aliyuncs.com/api/v1";

Replace {WorkspaceId} with your actual workspace ID.

Virginia

Constants.baseHttpApiUrl = "https://{WorkspaceId}.us-east-1.maas.aliyuncs.com/api/v1";

Frankfurt

Constants.baseHttpApiUrl = "https://{WorkspaceId}.eu-central-1.maas.aliyuncs.com/api/v1";

Replace {WorkspaceId} with your actual workspace ID.

Synchronous invocation

Request example
// Copyright (c) Alibaba, Inc. and its affiliates.

import com.alibaba.dashscope.aigc.videosynthesis.VideoSynthesis;
import com.alibaba.dashscope.aigc.videosynthesis.VideoSynthesisParam;
import com.alibaba.dashscope.aigc.videosynthesis.VideoSynthesisResult;
import com.alibaba.dashscope.exception.ApiException;
import com.alibaba.dashscope.exception.InputRequiredException;
import com.alibaba.dashscope.exception.NoApiKeyException;
import com.alibaba.dashscope.utils.JsonUtils;
import com.alibaba.dashscope.utils.Constants;
import java.util.HashMap;
import java.util.Map;

public class Text2Video {

    static {
        // This is the URL for the Beijing region. Replace {WorkspaceId} with your actual workspace ID. URLs vary by region. For more information, see: https://help.aliyun.com/en/model-studio/text-to-video-api-reference
        Constants.baseHttpApiUrl = "https://{WorkspaceId}.cn-beijing.maas.aliyuncs.com/api/v1";
    }

    // If no environment variable is configured, replace this with your Model Studio API key: apiKey="sk-xxx"
    // API keys vary by region. For more information, see: https://help.aliyun.com/en/model-studio/get-api-key
    public static String apiKey = System.getenv("DASHSCOPE_API_KEY");

    /**
     * Creates a video synthesis task and waits for its completion.
     */
    public static void text2Video() throws ApiException, NoApiKeyException, InputRequiredException {
        VideoSynthesis vs = new VideoSynthesis();
        Map<String, Object> parameters = new HashMap<>();
        parameters.put("prompt_extend", true);
        parameters.put("watermark", false);
        parameters.put("seed", 12345);

        VideoSynthesisParam param =
                VideoSynthesisParam.builder()
                        .apiKey(apiKey)
                        .model("wan2.6-t2v")
                        .prompt("An epic and cute scene. A small, adorable cartoon kitten general, wearing exquisitely detailed golden armor and a slightly oversized helmet, stands bravely on a cliff. He rides a small but heroic warhorse and says: 'The long clouds of Qinghai darken the snowy mountains, a lone city gazes at Yumen Pass from afar. Through a hundred battles in the yellow sand, the golden armor is worn, but we will not return until we have broken Loulan'. Below the cliff, a vast and endless army of mice with makeshift weapons is charging forward. This is a dramatic, large-scale battle scene inspired by ancient Chinese war epics. In the distance, dark clouds gather in the sky over the snowy mountains. The overall atmosphere is a comical and epic fusion of 'cute' and 'domineering'.")
                        .audioUrl("https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20250923/hbiayh/%E4%BB%8E%E5%86%9B%E8%A1%8C.mp3")
                        .negativePrompt("")
                        .size("1280*720")
                        .duration(10)
                        .parameters(parameters)
                        .build();
        System.out.println("Please wait...");
        VideoSynthesisResult result = vs.call(param);
        System.out.println(JsonUtils.toJson(result));
    }

    public static void main(String[] args) {
        try {
            text2Video();
        } catch (ApiException | NoApiKeyException | InputRequiredException e) {
            System.out.println(e.getMessage());
        }
        System.exit(0);
    }
}
Response example
The video_url is valid for 24 hours. Download promptly.
{
    "request_id": "c1209113-8437-424f-a386-xxxxxx",
    "output": {
        "task_id": "966cebcd-dedc-4962-af88-xxxxxx",
        "task_status": "SUCCEEDED",
        "video_url": "https://dashscope-result-sh.oss-accelerate.aliyuncs.com/xxx.mp4?Expires=xxx",
        "orig_prompt": "An epic and cute scene. A small, adorable cartoon kitten general, wearing exquisitely detailed golden armor and a slightly oversized helmet, stands bravely on a cliff. He rides a small but heroic warhorse and says: 'The long clouds of Qinghai darken the snowy mountains, a lone city gazes at Yumen Pass from afar. Through a hundred battles in the yellow sand, the golden armor is worn through, but we will not return until we have broken Loulan'. Below the cliff, a vast and endless army of mice with makeshift weapons is charging forward. This is a dramatic, large-scale battle scene inspired by ancient Chinese war epics. In the distance, dark clouds gather in the sky over the snowy mountains. The overall atmosphere is a comical and epic fusion of 'cute' and 'domineering'.",
        "submit_time": "2026-01-22 23:13:40.553",
        "scheduled_time": "2026-01-22 23:13:49.415",
        "end_time": "2026-01-22 23:17:56.380"
    },
    "usage": {
        "video_count": 1,
        "duration": 10.0,
        "size": "1280*720",
        "input_video_duration": 0,
        "output_video_duration": 10,
        "SR": 720
    },
    "status_code": 200,
    "code": "",
    "message": ""
}

Asynchronous invocation

Request example
// Copyright (c) Alibaba, Inc. and its affiliates.

import com.alibaba.dashscope.aigc.videosynthesis.VideoSynthesis;
import com.alibaba.dashscope.aigc.videosynthesis.VideoSynthesisListResult;
import com.alibaba.dashscope.aigc.videosynthesis.VideoSynthesisParam;
import com.alibaba.dashscope.aigc.videosynthesis.VideoSynthesisResult;
import com.alibaba.dashscope.exception.ApiException;
import com.alibaba.dashscope.exception.InputRequiredException;
import com.alibaba.dashscope.exception.NoApiKeyException;
import com.alibaba.dashscope.task.AsyncTaskListParam;
import com.alibaba.dashscope.utils.JsonUtils;
import com.alibaba.dashscope.utils.Constants;
import java.util.HashMap;
import java.util.Map;

public class Text2Video {

    static {
        // Beijing region URL. Replace {WorkspaceId} with your actual workspace ID. URLs vary by region. For more information, see the referenced document.
        Constants.baseHttpApiUrl = "https://{WorkspaceId}.cn-beijing.maas.aliyuncs.com/api/v1";
    }

    // If no environment variable is configured, replace with your Model Studio API key: apiKey="sk-xxx".
    // API keys vary by region. For more information, see the referenced document.
    public static String apiKey = System.getenv("DASHSCOPE_API_KEY");
    
    /**
     * Creates a video synthesis task and waits for it to complete.
     */
    public static void text2Video() throws ApiException, NoApiKeyException, InputRequiredException {
        VideoSynthesis vs = new VideoSynthesis();
        Map<String, Object> parameters = new HashMap<>();
        parameters.put("prompt_extend", true);
        parameters.put("watermark", false);
        parameters.put("seed", 12345);

        VideoSynthesisParam param =
                VideoSynthesisParam.builder()
                        .apiKey(apiKey)
                        .model("wan2.6-t2v")
                        .prompt("An epic and cute scene. A small, adorable cartoon kitten general, wearing exquisitely detailed golden armor and a slightly oversized helmet, stands bravely on a cliff. He rides a small but heroic warhorse and says: 'The long clouds of Qinghai darken the snowy mountains, a lone city gazes at Yumen Pass from afar. Through a hundred battles in the yellow sand, the golden armor is worn, but we will not return until we have broken Loulan'. Below the cliff, a vast and endless army of mice with makeshift weapons is charging forward. This is a dramatic, large-scale battle scene inspired by ancient Chinese war epics. In the distance, dark clouds gather in the sky over the snowy mountains. The overall atmosphere is a comical and epic fusion of 'cute' and 'domineering'.")
                        .audioUrl("https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20250923/hbiayh/%E4%BB%8E%E5%86%9B%E8%A1%8C.mp3")
                        .negativePrompt("")
                        .size("1280*720")
                        .duration(10)
                        .parameters(parameters)
                        .build();

        // Synchronous call
        VideoSynthesisResult task = vs.asyncCall(param);
        System.out.println(JsonUtils.toJson(task));
        System.out.println("Please wait...");

        // Retrieve the result
        VideoSynthesisResult result = vs.wait(task, apiKey);
        System.out.println(JsonUtils.toJson(result));
    }

    // Retrieve the task list
    public static void listTask() throws ApiException, NoApiKeyException {
        VideoSynthesis is = new VideoSynthesis();
        AsyncTaskListParam param = AsyncTaskListParam.builder().build();
        param.setApiKey(apiKey);
        VideoSynthesisListResult result = is.list(param);
        System.out.println(result);
    }

    // Retrieve the result of a single task
    public static void fetchTask(String taskId) throws ApiException, NoApiKeyException {
        VideoSynthesis is = new VideoSynthesis();
        // If DASHSCOPE_API_KEY is set as an environment variable, apiKey can be null.
        VideoSynthesisResult result = is.fetch(taskId, apiKey);
        System.out.println(result.getOutput());
        System.out.println(result.getUsage());
    }

    public static void main(String[] args) {
        try {
            text2Video();
        } catch (ApiException | NoApiKeyException | InputRequiredException e) {
            System.out.println(e.getMessage());
        }
        System.exit(0);
    }
}
Response example

1. Example of a response to a task creation request.

{
        "request_id": "5dbf9dc5-4f4c-9605-85ea-xxxxxxxx",
	"output": {
		"task_id": "7277e20e-aa01-4709-xxxxxxxx",
		"task_status": "PENDING"
	}
}

2. Example of a response to a task query request

The video_url is valid for 24 hours. Download promptly.
{
    "request_id": "c1209113-8437-424f-a386-xxxxxx",
    "output": {
        "task_id": "966cebcd-dedc-4962-af88-xxxxxx",
        "task_status": "SUCCEEDED",
        "video_url": "https://dashscope-result-sh.oss-accelerate.aliyuncs.com/xxx.mp4?Expires=xxx",
        "orig_prompt": "An epic and cute scene. A small, adorable cartoon kitten general, wearing exquisitely detailed golden armor and a slightly oversized helmet, stands bravely on a cliff. He rides a small but heroic warhorse and says: 'The long clouds of Qinghai darken the snowy mountains, a lone city gazes at Yumen Pass from afar. Through a hundred battles in the yellow sand, the golden armor is worn through, but we will not return until we have broken Loulan'. Below the cliff, a vast and endless army of mice with makeshift weapons is charging forward. This is a dramatic, large-scale battle scene inspired by ancient Chinese war epics. In the distance, dark clouds gather in the sky over the snowy mountains. The overall atmosphere is a comical and epic fusion of 'cute' and 'domineering'.",
        "submit_time": "2026-01-22 23:13:40.553",
        "scheduled_time": "2026-01-22 23:13:49.415",
        "end_time": "2026-01-22 23:17:56.380"
    },
    "usage": {
        "video_count": 1,
        "duration": 10.0,
        "size": "1280*720",
        "input_video_duration": 0,
        "output_video_duration": 10,
        "SR": 720
    },
    "status_code": 200,
    "code": "",
    "message": ""
}

Error codes

If the model call fails and returns an error message, see Error codes for resolution.

FAQ

Q: How do I convert a temporary video link to a permanent one?

A: You cannot convert the link directly. The correct procedure is to have your backend service retrieve the URL, download the video file, and then upload it to a permanent object storage service, such as Alibaba Cloud Object Storage Service (OSS), to generate a new, permanent access link.

Example code: Download a video to a local device

import requests

def download_and_save_video(video_url, save_path):
    try:
        response = requests.get(video_url, stream=True, timeout=300) # Set a timeout
        response.raise_for_status() # Raise an exception if the HTTP status code is not 200
        with open(save_path, 'wb') as f:
            for chunk in response.iter_content(chunk_size=8192):
                f.write(chunk)
        print(f"Video successfully downloaded to: {save_path}")
        # Add the logic to upload to permanent storage here
    except requests.exceptions.RequestException as e:
        print(f"Failed to download the video: {e}")

if __name__ == '__main__':
    video_url = "http://dashscope-result-sh.oss-cn-shanghai.aliyuncs.com/xxxx"
    save_path = "video.mp4"
    download_and_save_video(video_url, save_path)

Q: Can the returned video link be played directly in a browser?

A: No. You should not play the link directly in a browser because it expires after 24 hours. Instead, you should download and store the video, and then use a permanent link for playback.

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