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E-MapReduce:Model service

Last Updated:Apr 18, 2026

EMR Serverless Spark includes several built-in models that you can use directly with an AI Function. If the built-in models do not meet your business needs, you can register an external model service. This lets you integrate with Model Studio, PAI-EAS, or your own self-managed model services.

Built-in models

EMR Serverless Spark includes the following built-in models. You can use them directly with an AI Function without registration.

Model service name

Model name

qwen3.6-plus

qwen3.6-plus

qwen3.5-plus

qwen3.5-plus

qwen-plus

qwen-plus

text-embedding-v4

text-embedding-v4

tongyi-embedding-vision-plus

tongyi-embedding-vision-plus

Add external models

If the built-in models do not suit your needs, follow these steps to add a self-managed model service.

  1. Navigate to the model service page.

    1. Log on to the E-MapReduce console.

    2. In the left-side navigation pane, choose EMR Serverless > Spark.

    3. On the Spark page, click the name of your target workspace.

    4. On the EMR Serverless Spark page, click AI Center > Model Service in the left-side navigation pane.

  2. On the Model Service tab, click Create External Model Service and configure the following parameters:

    Parameter

    Example value

    Description

    Model service name

    my_qwen_service

    This name is used for the endpointName parameter in an AI Function. It must be unique within the workspace and cannot be changed after creation.

    Endpoint

    http://12*******39.vpc.cn-hangzhou.pai-eas.aliyuncs.com/api/predict/<ServiceName>/v1

    Enter the endpoint of the external model service. If you are using a PAI-EAS model, append /v1 to the end of the URL.

    Note

    If the model service uses a public network endpoint, configure a Network Connection with public network access for the Spark job. For more information, see Network Connection.

    Model name

    Qwen3.5-Plus

    The model name used in API calls.

    Model type

    Chat

    Select Chat or Embedding based on the model you deploy.

    API key

    nMzI**********************Zg==

    The API key for the model service.

    Description

    The latest Qwen multimodal model service

    Enter a brief description for easy identification.

  3. Verify your parameters and click create to register the model service.

References