+
+

Related Products

  • Google Cloud Speech-to-Text
    443 Ratings
    Visit Website
  • Google AI Studio
    41 Ratings
    Visit Website
  • LM-Kit.NET
    29 Ratings
    Visit Website
  • Adobe Firefly
    25,051 Ratings
    Visit Website
  • QEval
    30 Ratings
    Visit Website
  • Gemini Enterprise Agent Platform
    1,161 Ratings
    Visit Website
  • Forethought
    166 Ratings
    Visit Website
  • Qloo
    23 Ratings
    Visit Website
  • LALAL.AI
    5,443 Ratings
    Visit Website
  • Muzaic
    2 Ratings
    Visit Website

About

Amazon Polly is a service that turns text into lifelike speech, allowing you to create applications that talk, and build entirely new categories of speech-enabled products. Polly's Text-to-Speech (TTS) service uses advanced deep learning technologies to synthesize natural sounding human speech. With dozens of lifelike voices across a broad set of languages, you can build speech-enabled applications that work in many different countries. In addition to Standard TTS voices, Amazon Polly offers Neural Text-to-Speech (NTTS) voices that deliver advanced improvements in speech quality through a new machine learning approach. Polly’s Neural TTS technology also supports two speaking styles that allow you to better match the delivery style of the speaker to the application: a Newscaster reading style that is tailored to news narration use cases, and a Conversational speaking style that is ideal for two-way communication like telephony applications.

About

Gradium is a voice AI platform for developers and organizations building speech-enabled applications and conversational agents. Its hosted APIs provide streaming text-to-speech, speech-to-text, speech translation, and speech-to-speech, with WebSocket and REST interfaces, real-time turn detection, pronunciation controls, and voice design or cloning features. A browser-based studio lets users try the models and manage voices, while documentation and SDK guides support application development. Use cases include voice agents, customer-service automation, live transcription, multilingual voice experiences, and spoken content generation. Gradium also publishes Phonon, an open-weight text-to-speech model designed for local, offline use in applications and on-device systems. Plans use credits for speech generation, transcription, and translation.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Organizations that want to create applications that talk, and build entirely new categories of speech-enabled products using text-to-speech technology

Audience

Developers and organizations building voice-enabled applications, conversational agents, and speech workflows, including enterprise teams.

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

No information available.
Free Version Supported
Free Trial Not Supported

Pricing

$0/month
The free tier includes 45,000 credits. The XS plan is $13/month and includes 225,000 credits. Credits are shared across speech services; monthly plan credits do not roll over. Annual billing saves one month.
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Amazon
Founded: 1994
United States
aws.amazon.com/polly/

Company Information

Gradium
Founded: 2025
France
gradium.ai/

Alternatives

Alternatives

Amazon Lex

Amazon Lex

Amazon
Fish Audio

Fish Audio

Hanabi AI

Categories

Categories

Text to Speech Features

Adjust Speaking Rate / Pitch Supported
API Supported
Audio Optimization Supported
Custom Lexicons Supported
Different Voice Choices Supported
Multi-Language Support Supported
Synchronize Speech Supported

Integrations

1forAll.ai Supported
AWS AI Services Supported
AWS Lambda Supported
Amazon Web Services (AWS) Supported
Bolna Supported
Eden AI Not Supported
Fleece AI Supported
LiveKit Not Supported
Lont Supported
Nekton.ai Supported
NetSapiens Supported
Peter AI Supported
Pipecat Not Supported
PubNub Supported
Quintype Ahead Supported
Smart IVR Supported
Unremot Supported
Videostew Supported
Vision Agents Supported
uContact Supported

Integrations

1forAll.ai Not Supported
AWS AI Services Not Supported
AWS Lambda Not Supported
Amazon Web Services (AWS) Not Supported
Bolna Not Supported
Eden AI Supported
Fleece AI Not Supported
LiveKit Supported
Lont Not Supported
Nekton.ai Not Supported
NetSapiens Not Supported
Peter AI Not Supported
Pipecat Supported
PubNub Not Supported
Quintype Ahead Not Supported
Smart IVR Not Supported
Unremot Not Supported
Videostew Not Supported
Vision Agents Not Supported
uContact Not Supported
Claim Amazon Polly and update features and information
Claim Amazon Polly and update features and information
Claim Gradium and update features and information
Claim Gradium and update features and information