# Amazon Polly vs Bark

**Leader by Vioscale score:** Amazon Polly

| Attribute | Amazon Polly | Bark |
|---|---|---|
| **Vioscale score** | 59.9 (61% (medium)) | 32.3 (20% (low)) |
| activity.commits_last_30d | - | 0 |
| adoption.dependent_repos | - | 8 |
| adoption.github_stars | - | 39,249 |
| deployment.options | `{"cloud":true}` | `{"self_hosted":true}` |
| description.long | Amazon Polly is a managed cloud service that synthesizes speech from text using neural networks and generative voice technology. It offers multiple voice options and languages, integrates through APIs, and supports various audio formats for use in applications and services. | An open-source model capable of generating multilingual speech and various audio outputs including music, background noise, and sound effects from text input. Supports 100+ languages automatically, includes 100+ speaker voice presets, and is available for commercial use. |
| integrations.count | 2 | - |
| integrations.list | `[{"name":"Amazon Connect"},{"name":"Amazon Chime SDK"}]` | - |
| language.primary | - | Jupyter Notebook |
| license.spdx | - | MIT |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true}` |
| pricing | `{"type":"usage","plans":[{"free":false,"name":"Standard Voices","summary":"$4.00 per 1M characters","components":[{"per":{"qty":1000000,"unit":"characters"},"kind":"metered","amount":4,"currency":"USD"}],"description":"Basic quality voices with lower latency","contactSales":false},{"free":false,"name":"Neural Voices","summary":"$16.00 per 1M characters","components":[{"per":{"qty":1000000,"unit":"characters"},"kind":"metered","amount":16,"currency":"USD"}],"description":"High-quality neural synthesis voices","contactSales":false},{"free":false,"name":"Long-Form Voices","summary":"$100.00 per 1M characters","components":[{"per":{"qty":1000000,"unit":"characters"},"kind":"metered","amount":100,"currency":"USD"}],"description":"Optimized for longer text passages and documents","contactSales":false},{"free":false,"name":"Generative Voices","summary":"$30.00 per 1M characters","components":[{"per":{"qty":1000000,"unit":"characters"},"kind":"metered","amount":30,"currency":"USD"}],"description":"Generative voice synthesis with custom voice options","contactSales":false}],"summary":"From $4.00 per 1M characters. Free tier available (5M characters/month for Standard voices).","currency":"USD","freeTier":true,"sourceUrl":"https://aws.amazon.com/polly/pricing/","retrievedAt":"2026-08-19T22:02:51.594Z","startingPrice":{"unit":"characters","amount":4,"currency":"USD"},"billingPeriods":["month"]}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://github.com/pricing","retrievedAt":"2026-08-19T22:00:22.032Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | commercial |
| pricing.price_level | low | free |
| pricing.starting_price | `{"amount":4,"currency":"USD"}` | - |
| pricing.transparent | yes | - |
| reliability.status_page | yes | - |
| security.disclosure_policy | yes | - |
| security.fedramp | yes | - |
| security.gdpr | yes | - |
| security.hipaa | yes | - |
| security.pci | yes | - |
| security.scorecard | - | 2.6 |
| security.vulnerabilities | - | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=bark&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Text To Speech)

| Capability | Amazon Polly | Bark |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Voice cloning | - | - |
| Zero shot cloning | - | - |
| Streaming synthesis | - | - |
| Ssml support | - | - |
| Emotion style control | - | - |
| On device offline | - | - |
| Open source | - | - |
| Watermarking provenance | - | - |
| Cloning consent verification | - | - |

*Source: Vioscale. Generated 2026-09-01T14:44:34.381Z. "-" = undocumented, not absent.*