Amazon Polly vs Speechless
| Amazon Polly | Speechless | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | $4/mo | — |
| Open source | No | No |
| Platforms | api, Web | Web |
| Voice cloning | Yes | Yes |
| API access | Yes | — |
| Language count | 42 languages | — |
| Audio export formats | mp3, ogg_vorbis, ogg_opus, pcm, mu-law, a-law | WAV |
| Free plan | — | Yes |
| Commercial use | — | Yes |
| SSML or speech controls | — | Yes |
| Game engine tools | — | Wwise |
Both are listed in Best Game Voice Generators. On Samsung Mobile US Press, Amazon Polly scores higher on our published basis.