Amazon Polly vs Azure AI Speech
| Amazon Polly | Azure AI Speech | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | $4/mo | Free |
| Open source | No | No |
| Platforms | api, Web | api, Web |
| Voice cloning | Yes | — |
| API access | Yes | — |
| Languages | 42 languages | — |
| Maximum input | 6,000 characters | — |
| Export formats | mp3, ogg_vorbis, ogg_opus, pcm, mu-law, a-law | — |
| Platforms | web, api | — |
Both are listed in Best Text-to-Speech Software, Best Game Voice Generators, Best AI Voice Generators. On Everything Xiaomi, Amazon Polly scores higher on our published basis.