LookoutforVision / Client / list_models



Lists the versions of a model in an Amazon Lookout for Vision project.

The ListModels operation is eventually consistent. Recent calls to CreateModel might take a while to appear in the response from ListProjects.

This operation requires permissions to perform the lookoutvision:ListModels operation.

See also: AWS API Documentation

Request Syntax

response = client.list_models(
  • ProjectName (string) –


    The name of the project that contains the model versions that you want to list.

  • NextToken (string) – If the previous response was incomplete (because there is more data to retrieve), Amazon Lookout for Vision returns a pagination token in the response. You can use this pagination token to retrieve the next set of models.

  • MaxResults (integer) – The maximum number of results to return per paginated call. The largest value you can specify is 100. If you specify a value greater than 100, a ValidationException error occurs. The default value is 100.

Return type:



Response Syntax

    'Models': [
            'CreationTimestamp': datetime(2015, 1, 1),
            'ModelVersion': 'string',
            'ModelArn': 'string',
            'Description': 'string',
            'StatusMessage': 'string',
            'Performance': {
                'F1Score': ...,
                'Recall': ...,
                'Precision': ...
    'NextToken': 'string'

Response Structure

  • (dict) –

    • Models (list) –

      A list of model versions in the specified project.

      • (dict) –

        Describes an Amazon Lookout for Vision model.

        • CreationTimestamp (datetime) –

          The unix timestamp for the date and time that the model was created.

        • ModelVersion (string) –

          The version of the model.

        • ModelArn (string) –

          The Amazon Resource Name (ARN) of the model.

        • Description (string) –

          The description for the model.

        • Status (string) –

          The status of the model.

        • StatusMessage (string) –

          The status message for the model.

        • Performance (dict) –

          Performance metrics for the model. Not available until training has successfully completed.

          • F1Score (float) –

            The overall F1 score metric for the trained model.

          • Recall (float) –

            The overall recall metric value for the trained model.

          • Precision (float) –

            The overall precision metric value for the trained model.

    • NextToken (string) –

      If the response is truncated, Amazon Lookout for Vision returns this token that you can use in the subsequent request to retrieve the next set of models.


  • LookoutforVision.Client.exceptions.AccessDeniedException

  • LookoutforVision.Client.exceptions.InternalServerException

  • LookoutforVision.Client.exceptions.ValidationException

  • LookoutforVision.Client.exceptions.ConflictException

  • LookoutforVision.Client.exceptions.ResourceNotFoundException

  • LookoutforVision.Client.exceptions.ThrottlingException