Amazon Polly delivers a major upgrade to its Generative engine

Amazon Polly Generative engine now offers more natural and accurate speech output. We’re introducing an upgrade to the Amazon Polly Generative engine that delivers more expressive, more accurate speech output with low latency.

What changed

The upgrade adds 14 new voices across 9 locales, including general availability of Generative voices in Hindi and Finnish for the first time. The upgrade is now generally available in production.

Price and bundle value

Importantly, this is a drop-in upgrade for existing generative voices. Voice names and API calls are unchanged, so your existing applications continue to work as they do today.

AI features that change the value

The upgraded Amazon Polly Generative engine uses a standard Amazon Polly API call to build your speech applications. With Amazon Polly, you can continue to build with familiar AWS patterns: call the same Amazon Polly API, manage access with AWS Identity and Access Management (IAM), use the output in your existing applications and contact-center flows, and monitor the workloads that synthesize speech for your customers.

Who should pay attention

This launch is designed to elevate the speech output quality that you can hear with your existing Amazon Polly implementation. No changes to your code are required to get the upgraded voices. For applications that already use Amazon Polly Generative voices, the upgrade happens in place. For new applications, the same SynthesizeSpeech API gives you access to a larger set of generative voice catalogs. With the Bi-Di Streaming API StartSpeechSynthesisStream , you can stream text to Amazon Polly and receive synthesized audio back simultaneously. This is well-suited for real-time applications like voice agents and bespoke characters in games.

Patrick Tech Media take

The Amazon Polly Generative engine offers competitive pricing on a pay-as-you-go basis. With this model upgrade, you get improved voice quality and accuracy at the same price. There’s no cost increase, no new SKU, and no changes to your existing integration. You can cache and replay synthesized static prompts with no additional cost. Refer to Amazon Polly pricing for complete cost information.

Source notes

AWS ML Blog