Head to head
Amazon Polly vs OpenAI TTS
As a text-to-speech API, Amazon Polly rates higher on the APIbenchmarks Index, 83.7 to 82.6, a 1.1-point gap. Here is how they compare on each criterion.
Criterion by criterion
| Criterion | Amazon Polly | OpenAI TTS |
|---|---|---|
| Documentation & DX | ||
| Reliability | ||
| Ecosystem & SDKs | ||
| Accessibility | ||
| APIbenchmarks Index | 83.7 | 82.6 |
Specifications
| Amazon Polly | OpenAI TTS | |
|---|---|---|
| Best for | TTS embedded in the AWS stack | TTS bundled into the OpenAI API |
| Free tier | 5M chars/mo, 12 months (Neural 1M) | No |
| Pricing | Per 1M characters | Per 1M characters / tokens |
| Official SDKs | 12 languages | 5 languages |
Is Amazon Polly better than OpenAI TTS?
On the APIbenchmarks Index, Amazon Polly rates higher (83.7 vs 82.6). It leads on the four weighted criteria, but price is reported separately, so the best choice still depends on your budget.