Yes. Amazon Polly offers free text-to-speech AI services for one year after you sign up - up to a minimum usage threshold. The threshold varies from 100 thousand characters to 5 million characters depending on the voice engine you choose. For more details, see Amazon Polly pricing. Starting July 15, 2025, new AWS customers willreceive up to $200 in AWS Free Tier credits, which can be appliedtowards eligible AWS services, including Amazon Polly. At account sign-up, you can choose between a free plan and a paid plan. The free planwill be available for 6 months after account creation. If you upgrade to apaid plan, any remaining Free Tier credit balance will automatically applyto your AWS bills. All Free Tier credits must be used within 12 months ofyour account creation date. To learn more about the AWS Free Tierprogram, refer to AWS Free Tier website and AWS Free Tierdocumentation.
Amazon Polly offers 100+ male and female voices in 40+ language and language variants. AWS is constantly updating and adding to our voice capabilities.
Amazon Polly produces MP3, ogg, and other standard audio file formats sampled at 8,000 Hz, 16,000 Hz, and 22,050 Hz.
The answer is Yes. Currently Alexa uses Polly technology to power the text-to-speech generation solution. However, the Alexa voices were build exclusively for Alexa and not available externally.
No. Amazon Polly is a fully-managed cloud AI service. You communicate with it using APIs in your code. You cannot download or deploy Amazon Polly source code in your environment. However, you can use Amazon Polly for free (up to a pre-determined usage threshold limit) for 12 months from your start. For more details, see Amazon Polly pricing. Starting July 15, 2025, new AWS customers will receive up to $200 in AWS Free Tier credits, which can be applied towards eligible AWS services, including Amazon Polly. At account sign-up, you can choose between a free plan and apaid plan. The free plan will be available for 6 months after account creation. If you upgrade to a paid plan, any remaining Free Tier credit balance will automatically apply to your AWS bills. All Free Tier credits must be used within 12 months of your account creation date. To learn more about the AWS Free Tier program, refer to AWS Free Tier website and AWS Free Tier documentation.