Transform text into audio in real-time with our REST API and bidirectional (HTTP/2) streaming API. Built for applications requiring immediate text to audio processing with minimal delay.
AWS Marketplace now accepts line of credit payments through the PNC Vendor Finance program. This program is available to select AWS customers in the US, excluding NV, NC, ND, TN, & VT.
You pay by the hour for each host running the text-to-speech model. Pricing scales with the GPU instance size you choose, from the ml.g6.xlarge up to the ml.g6.48xlarge. Two instance families are available: the ml.g6 series and the ml.g6e series. The ml.g6 series offers both batch mode and real-time mode. Batch mode processes speech jobs in groups, while real-time mode returns audio immediately. The ml.g6e series is offered in real-time mode only. Larger instance sizes carry higher hourly rates. You select the size and mode that fit your workload.
Top-of-mind questions for buyers
What counts as one billable host hour for these instances?
One host hour is one hour that a chosen instance runs the text-to-speech model. Each running instance meters its own hours. Charges apply while the instance is active. Powered-off instances stop accruing software charges, though underlying AWS infrastructure fees may still apply separately.
How does batch mode billing differ from real-time mode?
Both modes bill by the host hour. Batch mode processes speech jobs in groups, so you run the instance for a set period and stop it. Real-time mode returns audio immediately, so you keep the instance running for live requests. Batch suits scheduled work; real-time suits interactive voice applications.
Why do the ml.g6 and ml.g6e series differ in available modes?
The ml.g6 series offers both batch and real-time modes. The ml.g6e series is offered in real-time mode only. If you need batch processing, choose a ml.g6 instance. For real-time voice applications, either series works. Your bill depends on the instance size and hours run.
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An Amazon SageMaker model package is a pre-trained machine learning model ready to use without additional training. Use the model package to create a model on Amazon SageMaker for real-time inference or batch processing. Amazon SageMaker is a fully managed platform for building, training, and deploying machine learning models at scale.
Deploy the model on Amazon SageMaker AI using the following options:
Real-time inference
Deploy the model as an API endpoint for your applications. When you send data to the endpoint, SageMaker processes it and returns results by API response. The endpoint runs continuously until you delete it. You're billed for software and SageMaker infrastructure costs while the endpoint runs. AWS Marketplace models don't support Amazon SageMaker Asynchronous Inference. For more information, see Deploy models for real-time inference .
Batch transform
Deploy the model to process batches of data stored in Amazon Simple Storage Service (Amazon S3). SageMaker runs the job, processes your data, and returns results to Amazon S3. When complete, SageMaker stops the model. You're billed for software and SageMaker infrastructure costs only during the batch job. Duration depends on your model, instance type, and dataset size. AWS Marketplace models don't support Amazon SageMaker Asynchronous Inference. For more information, see Batch transform for inference with Amazon SageMaker AI .
Version release notes
Make Sarvam's flagship TTS powered by inhouse bulbul:v3 available on AWS Sagemaker L40s and L4 instances
Additional details
Inputs
Outputs
Usage instructions
Sample notebooks
Inputs
Summary
Give the input text and target language with sample rate and speaker id
Limitations for input type
2500 chars for realtime and stream API 30 minute for websocket
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