CSM vs Piper
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| Field | C CSMSesame’s 1B conversational speech model behind the viral Maya voice demo. | P PiperFast local neural text-to-speech that runs on CPU. |
|---|---|---|
| Fit. | ||
| Platforms | Linux, macOS, Windows | Linux, macOS, Windows |
| Docker· | No | Yes |
| Commercial | yes | yes |
| Catalog. | ||
| Category | Speech AI | Speech AI |
| License· | Apache 2.0 | MIT |
| Language· | Python | C++ |
| Jobs· | text to speech, local TTS | text to speech, local TTS, offline voice |
| Activity. | ||
| Stars· | 15k | 11k |
| Last commit· | May 27, 2025 | May 12, 2026 |
| Last release· | — | Nov 14, 2023 |
| Links | ProjectGitHubGuide | ProjectGitHubGuide |