Alibaba Cloud Model Studio:Wan - text-to-image V2 API reference

Request example

from http import HTTPStatus
from urllib.parse import urlparse, unquote
from pathlib import PurePosixPath
import requests
from dashscope import ImageSynthesis
import os
import dashscope

# The following URL is for the Singapore region. If you use a model in the Beijing region, replace the URL with: https://dashscope.aliyuncs.com/api/v1
dashscope.base_http_api_url = 'https://dashscope-intl.aliyuncs.com/api/v1'

# If you have not configured the environment variable, replace the following line with your Model Studio API key: api_key="sk-xxx"
# The API keys for the Singapore and Beijing regions are different. Get an API key: https://www.alibabacloud.com/help/zh/model-studio/get-api-key
api_key = os.getenv("DASHSCOPE_API_KEY")

print('----sync call, please wait a moment----')
rsp = ImageSynthesis.call(api_key=api_key,
                          model="wan2.5-t2i-preview",
                          prompt="A flower shop with exquisite windows, a beautiful wooden door, and flowers on display",
                          negative_prompt="",
                          n=1,
                          size='1024*1024',
                          prompt_extend=True,
                          watermark=False,
                          seed=12345)
print('response: %s' % rsp)
if rsp.status_code == HTTPStatus.OK:
    # Save the image to the current directory
    for result in rsp.output.results:
        file_name = PurePosixPath(unquote(urlparse(result.url).path)).parts[-1]
        with open('./%s' % file_name, 'wb+') as f:
            f.write(requests.get(result.url).content)
else:
    print('sync_call Failed, status_code: %s, code: %s, message: %s' %
          (rsp.status_code, rsp.code, rsp.message))

Response example

The URL is valid for 24 hours. Download the image promptly.

{
    "status_code": 200,
    "request_id": "9d634fda-5fe9-9968-a908-xxxxxx",
    "code": null,
    "message": "",
    "output": {
        "task_id": "d35658e4-483f-453b-b8dc-xxxxxx",
        "task_status": "SUCCEEDED",
        "results": [{
            "url": "https://dashscope-result-wlcb.oss-cn-wulanchabu.aliyuncs.com/1.png",
            "orig_prompt": "A flower shop with exquisite windows, a beautiful wooden door, and flowers on display",
            "actual_prompt": "An exquisite flower shop with elegantly carved windows and a beautiful wooden door with a brass handle. A variety of colorful flowers, such as roses, tulips, and lilies, are on display. The background is a warm indoor scene with soft light, creating a peaceful and comfortable atmosphere. High-definition realistic photography, close-up center composition."
        }],
        "submit_time": "2025-01-08 19:36:01.521",
        "scheduled_time": "2025-01-08 19:36:01.542",
        "end_time": "2025-01-08 19:36:13.270",
        "task_metrics": {
            "TOTAL": 1,
            "SUCCEEDED": 1,
            "FAILED": 0
        }
    },
    "usage": {
        "image_count": 1
    }
}

Request example

from http import HTTPStatus
from urllib.parse import urlparse, unquote
from pathlib import PurePosixPath
import requests
from dashscope import ImageSynthesis
import os
import dashscope

# The following URL is for the Singapore region. If you use a model in the Beijing region, replace the URL with: https://dashscope.aliyuncs.com/api/v1
dashscope.base_http_api_url = 'https://dashscope-intl.aliyuncs.com/api/v1'

# If you have not configured the environment variable, replace the following line with your Model Studio API key: api_key="sk-xxx"
# The API keys for the Singapore and Beijing regions are different. Get an API key: https://www.alibabacloud.com/help/zh/model-studio/get-api-key
api_key = os.getenv("DASHSCOPE_API_KEY")

def async_call():
    print('----create task----')
    task_info = create_async_task()
    print('----wait task done then save image----')
    wait_async_task(task_info)


# Create an asynchronous task
def create_async_task():
    rsp = ImageSynthesis.async_call(api_key=api_key,
                                    model="wan2.5-t2i-preview",
                                    prompt="A flower shop with exquisite windows, a beautiful wooden door, and flowers on display",
                                    negative_prompt="",
                                    n=1,
                                    size='1024*1024',
                                    prompt_extend=True,
                                    watermark=False,
                                    seed=12345)
    print(rsp)
    if rsp.status_code == HTTPStatus.OK:
        print(rsp.output)
    else:
        print('Failed, status_code: %s, code: %s, message: %s' %
              (rsp.status_code, rsp.code, rsp.message))
    return rsp


# Wait for the asynchronous task to complete
def wait_async_task(task):
    rsp = ImageSynthesis.wait(task=task, api_key=api_key)
    print(rsp)
    if rsp.status_code == HTTPStatus.OK:
        print(rsp.output)
        # save file to current directory
        for result in rsp.output.results:
            file_name = PurePosixPath(unquote(urlparse(result.url).path)).parts[-1]
            with open('./%s' % file_name, 'wb+') as f:
                f.write(requests.get(result.url).content)
    else:
        print('Failed, status_code: %s, code: %s, message: %s' %
              (rsp.status_code, rsp.code, rsp.message))


# Get information about the asynchronous task
def fetch_task_status(task):
    status = ImageSynthesis.fetch(task=task, api_key=api_key)
    print(status)
    if status.status_code == HTTPStatus.OK:
        print(status.output.task_status)
    else:
        print('Failed, status_code: %s, code: %s, message: %s' %
              (status.status_code, status.code, status.message))


# Cancel the asynchronous task. Only tasks in the PENDING state can be canceled.
def cancel_task(task):
    rsp = ImageSynthesis.cancel(task=task, api_key=api_key)
    print(rsp)
    if rsp.status_code == HTTPStatus.OK:
        print(rsp.output.task_status)
    else:
        print('Failed, status_code: %s, code: %s, message: %s' %
              (rsp.status_code, rsp.code, rsp.message))


if __name__ == '__main__':
    async_call()

Response example

1. Response example for creating a task

{
	"status_code": 200,
	"request_id": "31b04171-011c-96bd-ac00-f0383b669cc7",
	"code": "",
	"message": "",
	"output": {
		"task_id": "4f90cf14-a34e-4eae-xxxxxxxx",
		"task_status": "PENDING",
		"results": []
	},
	"usage": null
}

2. Response example for querying a task result

The URL is valid for 24 hours. Download the image promptly.

{
    "status_code": 200,
    "request_id": "9d634fda-5fe9-9968-a908-xxxxxx",
    "code": null,
    "message": "",
    "output": {
        "task_id": "d35658e4-483f-453b-b8dc-xxxxxx",
        "task_status": "SUCCEEDED",
        "results": [{
            "url": "https://dashscope-result-wlcb.oss-cn-wulanchabu.aliyuncs.com/xxx.png",
            "orig_prompt": "A flower shop with exquisite windows, a beautiful wooden door, and flowers on display",
            "actual_prompt": "An exquisite flower shop with elegantly carved windows and a beautiful wooden door with a brass handle. A variety of colorful flowers, such as roses, tulips, and lilies, are on display. The background is a warm indoor scene with soft light, creating a peaceful and comfortable atmosphere. High-definition realistic photography, close-up center composition."
        }],
        "submit_time": "2025-01-08 19:36:01.521",
        "scheduled_time": "2025-01-08 19:36:01.542",
        "end_time": "2025-01-08 19:36:13.270",
        "task_metrics": {
            "TOTAL": 1,
            "SUCCEEDED": 1,
            "FAILED": 0
        }
    },
    "usage": {
        "image_count": 1
    }
}

Request example

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

import com.alibaba.dashscope.aigc.imagesynthesis.ImageSynthesis;
import com.alibaba.dashscope.aigc.imagesynthesis.ImageSynthesisListResult;
import com.alibaba.dashscope.aigc.imagesynthesis.ImageSynthesisParam;
import com.alibaba.dashscope.aigc.imagesynthesis.ImageSynthesisResult;
import com.alibaba.dashscope.task.AsyncTaskListParam;
import com.alibaba.dashscope.exception.ApiException;
import com.alibaba.dashscope.exception.NoApiKeyException;
import com.alibaba.dashscope.utils.Constants;
import com.alibaba.dashscope.utils.JsonUtils;

import java.util.HashMap;
import java.util.Map;

public class Main {

  static {
     // The following URL is for the Singapore region. If you use a model in the Beijing region, replace the URL with: https://dashscope.aliyuncs.com/api/v1
     Constants.baseHttpApiUrl = "https://dashscope-intl.aliyuncs.com/api/v1";  
  }
  
  // If you have not configured the environment variable, replace the following line with your Model Studio API key: apiKey="sk-xxx"
  // The API keys for the Singapore and Beijing regions are different. Get an API key: https://www.alibabacloud.com/help/zh/model-studio/get-api-key
  static String apiKey = System.getenv("DASHSCOPE_API_KEY");
  
  public static void basicCall() throws ApiException, NoApiKeyException {
        // Set the parameters
        Map<String, Object> parameters = new HashMap<>();
        parameters.put("prompt_extend", true);
        parameters.put("watermark", false);
        parameters.put("seed", 12345);

        ImageSynthesisParam param =
                ImageSynthesisParam.builder()
                        .apiKey(apiKey)
                        .model("wan2.5-t2i-preview")
                        .prompt("A flower shop with exquisite windows, a beautiful wooden door, and flowers on display")
                        .n(1)
                        .size("1024*1024")
                        .negativePrompt("")
                        .parameters(parameters)
                        .build();

        ImageSynthesis imageSynthesis = new ImageSynthesis();
        ImageSynthesisResult result = null;
        try {
            System.out.println("---sync call, please wait a moment----");
            result = imageSynthesis.call(param);
        } catch (ApiException | NoApiKeyException e){
            throw new RuntimeException(e.getMessage());
        }
        System.out.println(JsonUtils.toJson(result));
    }

    public static void listTask() throws ApiException, NoApiKeyException {
        ImageSynthesis is = new ImageSynthesis();
        AsyncTaskListParam param = AsyncTaskListParam.builder().build();
        param.setApiKey(apiKey);
        ImageSynthesisListResult result = is.list(param);
        System.out.println(result);
    }

    public static void fetchTask(String taskId) throws ApiException, NoApiKeyException {
        ImageSynthesis is = new ImageSynthesis();
        // If the DASHSCOPE_API_KEY environment variable is set, apiKey can be null.
        ImageSynthesisResult result = is.fetch(taskId, apiKey);
        System.out.println(result.getOutput());
        System.out.println(result.getUsage());
    }

    public static void main(String[] args){
        try{
            basicCall();
            //listTask();
        }catch(ApiException|NoApiKeyException e){
            System.out.println(e.getMessage());
        }
    }
}

Response example

The URL is valid for 24 hours. Download the image promptly.

{
    "request_id": "22f9c744-206c-9a78-899a-xxxxxx",
    "output": {
        "task_id": "4a0f8fc6-03fb-4c44-a13a-xxxxxx",
        "task_status": "SUCCEEDED",
        "results": [{
           "orig_prompt": "A flower shop with exquisite windows, a beautiful wooden door, and flowers on display",
            "actual_prompt": "A flower shop with exquisitely carved windows and a beautiful dark wooden door that is slightly ajar. A variety of fresh flowers, including roses, lilies, and sunflowers, are displayed in vibrant colors and are fragrant. The background is a warm indoor scene with soft light shining on the flowers through the window. High-definition realistic photography, medium shot composition.",
            "url": "https://dashscope-result-wlcb.oss-cn-wulanchabu.aliyuncs.com/1.png"
        }],
        "task_metrics": {
            "TOTAL": 1,
            "SUCCEEDED": 1,
            "FAILED": 0
        }
    },
    "usage": {
        "image_count": 1
    }
}

Request example

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

import com.alibaba.dashscope.aigc.imagesynthesis.ImageSynthesis;
import com.alibaba.dashscope.aigc.imagesynthesis.ImageSynthesisParam;
import com.alibaba.dashscope.aigc.imagesynthesis.ImageSynthesisResult;
import com.alibaba.dashscope.exception.ApiException;
import com.alibaba.dashscope.exception.NoApiKeyException;
import com.alibaba.dashscope.utils.Constants;
import com.alibaba.dashscope.utils.JsonUtils;

import java.util.HashMap;
import java.util.Map;

public class Main {
    static {
        // The following URL is for the Singapore region. If you use a model in the Beijing region, replace the URL with: https://dashscope.aliyuncs.com/api/v1
        Constants.baseHttpApiUrl = "https://dashscope-intl.aliyuncs.com/api/v1";
    }
    
    // If you have not configured the environment variable, replace the following line with your Model Studio API key: apiKey="sk-xxx"
    // The API keys for the Singapore and Beijing regions are different. Get an API key: https://www.alibabacloud.com/help/zh/model-studio/get-api-key
    static String apiKey = System.getenv("DASHSCOPE_API_KEY");
    
    public void asyncCall() {
        System.out.println("---create task----");
        String taskId = this.createAsyncTask();
        System.out.println("---wait task done then return image url----");
        this.waitAsyncTask(taskId);
    }


    /**
     * Create an asynchronous task
     * @return taskId
     */
    public String createAsyncTask() {
        // Set the parameters
        Map<String, Object> parameters = new HashMap<>();
        parameters.put("prompt_extend", true);
        parameters.put("watermark", false);
        parameters.put("seed", 12345);

        ImageSynthesisParam param =
                ImageSynthesisParam.builder()
                        .apiKey(apiKey)
                        .model("wan2.5-t2i-preview")
                        .prompt("A flower shop with exquisite windows, a beautiful wooden door, and flowers on display")
                        .n(1)
                        .size("1024*1024")
                        .negativePrompt("")
                        .parameters(parameters)
                        .build();

        ImageSynthesis imageSynthesis = new ImageSynthesis();
        ImageSynthesisResult result = null;
        try {
            result = imageSynthesis.asyncCall(param);
        } catch (Exception e){
            throw new RuntimeException(e.getMessage());
        }
        System.out.println(JsonUtils.toJson(result));
        String taskId = result.getOutput().getTaskId();
        System.out.println("taskId=" + taskId);
        return taskId;
    }


    /**
     * Wait for the asynchronous task to complete
     * @param taskId The task ID
     * */
    public void waitAsyncTask(String taskId) {
        ImageSynthesis imageSynthesis = new ImageSynthesis();
        ImageSynthesisResult result = null;
        try {
            // If you have configured the environment variable, you can set apiKey to null here.
            result = imageSynthesis.wait(taskId, apiKey);
        } catch (ApiException | NoApiKeyException e){
            throw new RuntimeException(e.getMessage());
        }
        System.out.println(JsonUtils.toJson(result));
        System.out.println(JsonUtils.toJson(result.getOutput()));
    }


    public static void main(String[] args){
        Main main = new Main();
        main.asyncCall();
    }

}

Response example

1. Response example for creating a task

{
	"request_id": "5dbf9dc5-4f4c-9605-85ea-542f97709ba8",
	"output": {
		"task_id": "7277e20e-aa01-4709-xxxxxxxx",
		"task_status": "PENDING"
	}
}

2. Response example for querying a task result

{
    "request_id": "22f9c744-206c-9a78-899a-xxxxxx",
    "output": {
        "task_id": "4a0f8fc6-03fb-4c44-a13a-xxxxxx",
        "task_status": "SUCCEEDED",
        "results": [{
           "orig_prompt": "A flower shop with exquisite windows, a beautiful wooden door, and flowers on display",
            "actual_prompt": "A flower shop with exquisitely carved windows and a beautiful dark wooden door that is slightly ajar. A variety of fresh flowers, including roses, lilies, and sunflowers, are displayed in vibrant colors and are fragrant. The background is a warm indoor scene with soft light shining on the flowers through the window. High-definition realistic photography, medium shot composition.",
            "url": "https://dashscope-result-wlcb.oss-cn-wulanchabu.aliyuncs.com/1.png"
        }],
        "task_metrics": {
            "TOTAL": 1,
            "SUCCEEDED": 1,
            "FAILED": 0
        }
    },
    "usage": {
        "image_count": 1
    }
}