# Parler-TTS vs Piper

| Attribute | Parler-TTS | Piper |
|---|---|---|
| **Vioscale score** | 28.6 (17% (low)) | 46.4 (20% (low)) |
| activity.commits_last_30d | 0 | 0 |
| adoption.dependent_repos | 0 | 0 |
| adoption.github_stars | 5,586 | 11,281 |
| deployment.options | `{"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | An inference and training library for speech synthesis models, available as an open-source project distributed via pip. | Open-source software that converts text to speech using neural networks, optimized to run locally for fast inference without requiring external services |
| language.primary | Python | C++ |
| license.spdx | Apache-2.0 | MIT |
| platform.support | `{"cli":true}` | - |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://github.com/pricing","retrievedAt":"2026-08-19T22:25:09.827Z"}` | `{"type":"open_source","summary":"Free and open source","freeTier":true,"sourceUrl":"https://github.com/pricing","retrievedAt":"2026-08-19T21:57:24.234Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | commercial |
| pricing.price_level | free | free |
| pricing.transparent | - | yes |
| release.cadence_days | - | 66 |
| release.history | - | `[{"url":"https://github.com/rhasspy/piper/releases/tag/2023.11.14-2","date":"2023-11-14T19:05:55Z","type":"stable","version":"2023.11.14-2"},{"url":"https://github.com/rhasspy/piper/releases/tag/v1.2.0","date":"2023-08-01T00:49:13Z","type":"stable","version":"v1.2.0"},{"url":"https://github.com/rhasspy/piper/releases/tag/v1.1.0","date":"2023-07-10T20:34:08Z","type":"stable","version":"v1.1.0"},{"url":"https://github.com/rhasspy/piper/releases/tag/v1.0.0","date":"2023-06-12T16:40:06Z","type":"stable","version":"v1.0.0"},{"url":"https://github.com/rhasspy/piper/releases/tag/v0.0.2","date":"2023-01-10T22:36:53Z","type":"stable","version":"v0.0.2"}]` |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=parler-tts&per_page=100","last_12m":0,"max_severity":null}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Frhasspy%2Fpiper&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Text To Speech)

| Capability | Parler-TTS | Piper |
|---|:--:|:--:|
| **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 2026-09-01T15:21:46.864Z. "-" = undocumented, not absent.*