Pyyan / Compare / Cartesia Sonic 3 vs Eleven v3
Cartesia Sonic 3 vs Eleven v3
2 of 5Voice & Audio · verified 13 Aug 2026
Cartesia Sonic 3CartesiacurrentEleven v3ElevenLabscurrent
| Specification | Cartesia Sonic 3 | Eleven v3 |
|---|---|---|
| Summary | Fastest commercial TTS. | Broadest ecosystem in audio. |
| Arena Elo | — | 1178 |
| Price ($/M chars) | — | $100 |
| Clone from | 3s | — |
| Open weights | No | No |
| Category | Voice & Audio | Voice & Audio |
| Official | Cartesia ↗ | ElevenLabs ↗ |
Highlighted rows are where these differ.
Cartesia Sonic 3
- 40–90ms time to first audio
- Clones from 3 seconds
- Built for turn-taking
Best for phone agents.
Eleven v3
- Dubbing, music, SFX and voice changer
- 10,000+ community voice library
- Ten times the price of Simba
Best for one-vendor stacks.