Detailed comparison across 10 dimensions
Winner: Azure AI Speech
Azure AI Speech clearly comes out ahead of Amazon Polly on Staquest's weighted six-dimension score. Azure AI Speech has a free tier; Amazon Polly does not.
| Overview |  Amazon PollyCloud-based AI text-to-speech service by AWS. | |
|---|---|---|
| Type | saas tool | saas tool |
| Company | Amazon Web Services | Microsoft |
| Free Tier | ||
| Has API | ||
| Open Source | ||
| Trending | Stable | Stable |
| Industries | MarketingDevelopmentEducation & EdTechAI & Machine Learning | MarketingDevelopment |
| Categories | ai-voice | ai-voice |
| Website | Visit | Visit |
Azure AI Speech
usage based
usage based
usage based
freemium
usage based
| Feature | amazon-polly | azure-ai-speech |
|---|---|---|
| 1 Million Characters Per Month Free Tier For First 12 Months | ||
| 1 Model Free Per Month For Endpoint Hosting | ||
| 100 Thousand Characters Per Month Free Tier For First 12 Months | ||
| 5 Audio Hours Free Per Month For Speech To Text | ||
| 5 Million Characters Per Month Free Tier | ||
| 5 Million Characters Free Per Month For Text To Speech | ||
| 500 Thousand Characters Per Month Free Tier For First 12 Months | ||
| Access To All Speech Services | ||
| Custom Speech And Custom Voice Capabilities | ||
| Higher Concurrent Request Limits | ||
| Pay-As-You-Go Pricing | ||
| Speech To Text | ||
| Speech Translation | ||
| Text To Speech |
Showing 14 of 14 features
Dashes mean the feature isn't listed in our data. The tool may still support it.
On Staquest's weighted six-dimension scoring, Azure AI Speech comes out ahead overall, though Amazon Polly can be the better fit depending on your priorities — see the dimension-by-dimension breakdown above.
Azure AI Speech offers a free tier; Amazon Polly does not currently list one.
