describe-language-model¶

Description¶

Provides information about the specified custom language model.

This operation also shows if the base language model you used to create your custom language model has been updated. If Amazon Transcribe has updated the base model, you can create a new custom language model using the updated base model.

If you tried to create a new custom language model and the request wasn’t successful, you can use DescribeLanguageModel to help identify the reason for this failure.

To get a list of your custom language models, use the operation.

Synopsis¶

  describe-language-model
--model-name <value>
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]

Options¶

--model-name (string)

The name of the custom language model you want information about. Model names are case sensitive.

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See ‘aws help’ for descriptions of global parameters.

Examples¶

To get information about a specific custom language model

The following describe-language-model example gets information about a specific custom language model. For example, under BaseModelName you can see whether your model is trained using a NarrowBand or WideBand model. Custom language models with a NarrowBand base model can transcribe audio with a sample rate less than 16 kHz. Language models using a WideBand base model can transcribe audio with a sample rate greater than 16 kHz. The S3Uri parameter indicates the Amazon S3 prefix you’ve used to access the training data to create the custom language model.

aws transcribe describe-language-model \
    --model-name cli-clm-example

Output:

{
    "LanguageModel": {
        "ModelName": "cli-clm-example",
        "CreateTime": "2020-09-25T17:57:38.504000+00:00",
        "LastModifiedTime": "2020-09-25T17:57:48.585000+00:00",
        "LanguageCode": "language-code",
        "BaseModelName": "base-model-name",
        "ModelStatus": "IN_PROGRESS",
        "UpgradeAvailability": false,
        "InputDataConfig": {
            "S3Uri": "s3://DOC-EXAMPLE-BUCKET/Amazon-S3-Prefix/",
            "TuningDataS3Uri": "s3://DOC-EXAMPLE-BUCKET/Amazon-S3-Prefix/",
            "DataAccessRoleArn": "arn:aws:iam::AWS-account-number:role/IAM-role-with-permissions-to-create-a-custom-language-model"
        }
    }
}

For more information, see Improving Domain-Specific Transcription Accuracy with Custom Language Models in the Amazon Transcribe Developer Guide.

Output¶

LanguageModel -> (structure)

Provides information about the specified custom language model.

This parameter also shows if the base language model you used to create your custom language model has been updated. If Amazon Transcribe has updated the base model, you can create a new custom language model using the updated base model.

If you tried to create a new custom language model and the request wasn’t successful, you can use this DescribeLanguageModel to help identify the reason for this failure.

ModelName -> (string)

A unique name, chosen by you, for your custom language model.

This name is case sensitive, cannot contain spaces, and must be unique within an Amazon Web Services account.

CreateTime -> (timestamp)

The date and time the specified custom language model was created.

Timestamps are in the format YYYY-MM-DD'T'HH:MM:SS.SSSSSS-UTC . For example, 2022-05-04T12:32:58.761000-07:00 represents 12:32 PM UTC-7 on May 4, 2022.

LastModifiedTime -> (timestamp)

The date and time the specified language model was last modified.

Timestamps are in the format YYYY-MM-DD'T'HH:MM:SS.SSSSSS-UTC . For example, 2022-05-04T12:32:58.761000-07:00 represents 12:32 PM UTC-7 on May 4, 2022.

LanguageCode -> (string)

The language code used to create your custom language model. Each language model must contain terms in only one language, and the language you select for your model must match the language of your training and tuning data.

For a list of supported languages and their associated language codes, refer to the Supported languages table. Note that U.S. English (en-US ) is the only language supported with Amazon Transcribe Medical.

BaseModelName -> (string)

The Amazon Transcribe standard language model, or base model, used to create your custom language model.

ModelStatus -> (string)

The status of the specified custom language model. When the status displays as COMPLETED the model is ready for use.

UpgradeAvailability -> (boolean)

Shows if a more current base model is available for use with the specified custom language model.

If false , your language model is using the most up-to-date base model.

If true , there is a newer base model available than the one your language model is using.

Note that to update a base model, you must recreate the custom language model using the new base model. Base model upgrades for existing custom language models are not supported.

FailureReason -> (string)

If ModelStatus is FAILED , FailureReason contains information about why the custom language model request failed. See also: Common Errors .

InputDataConfig -> (structure)

The Amazon S3 location of the input files used to train and tune your custom language model, in addition to the data access role ARN (Amazon Resource Name) that has permissions to access these data.

S3Uri -> (string)

The Amazon S3 location (URI) of the text files you want to use to train your custom language model.

Here’s an example URI path: s3://DOC-EXAMPLE-BUCKET/my-model-training-data/

TuningDataS3Uri -> (string)

The Amazon S3 location (URI) of the text files you want to use to tune your custom language model.

Here’s an example URI path: s3://DOC-EXAMPLE-BUCKET/my-model-tuning-data/

DataAccessRoleArn -> (string)

The Amazon Resource Name (ARN) of an IAM role that has permissions to access the Amazon S3 bucket that contains your input files. If the role you specify doesn’t have the appropriate permissions to access the specified Amazon S3 location, your request fails.

IAM role ARNs have the format arn:partition:iam::account:role/role-name-with-path . For example: arn:aws:iam::111122223333:role/Admin .

For more information, see IAM ARNs .

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