Side by side
Amazon Polly vs Sonex Labs
Both stand on text-to-speech software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APIWeb
Amazon Polly offers several voice categories, access methods, and export formats, with a free tier alongside monthly paid plans. Buyers should compare the included request types and character allowances for the voice category they need.
Visit Amazon Polly
Free plan APISelf-hostedWeb
Sonex Labs covers multilingual speech, recognition, voice agents, cloning, and calling workflows with API and deployment flexibility. Buyers can use usage-based billing, a $5.00 monthly plan, or request enterprise terms.
Visit Sonex LabsThe facts
| Amazon Polly | Sonex Labs | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Web | API, Self-hosted, Web |
| Lowest paid plan | Standard: $4 a month | See the plans |
| Plans published | 5 | 3 |
| Maker | Amazon Polly | Not published |
| Website | aws.amazon.com | sonexlabs.com |
| On text-to-speech software | #27 of 223 | #110 of 223 |
Amazon Polly: what it does well
- Offers both API and web access.
- Lists 42 languages and voice cloning.
- Exports six listed audio formats.
- Free tier includes several voice categories.
What to know first
- Monthly charges vary by voice category.
- Free-tier allowances expire after 12 months for three categories.
Sonex Labs: what it does well
- Supports 250+ languages
- Voice cloning and 120 listed voices
- Inbound and outbound voice agents
- API and self-hosted options
- Enterprise private and air-gapped deployment
What to know first
- Testing tier has request-rate limits
- Enterprise pricing is custom
- Pay-as-you-go usage charges vary by product
- Self-serve plans list email support
Alternatives to Amazon Polly Alternatives to Sonex Labs The whole list