Pyyan / Voice & Audio / Cartesia Sonic 3

Cartesia Sonic 3

Fastest commercial TTS.

currentCartesia ↗Verified 2026-08-13

40ms

to first audio

Specifications

Clone from	3s
Open weights	No

Official links

Cartesia official site

What matters

40–90ms time to first audio
Clones from 3 seconds
Built for turn-taking

Best for phone agents.

Compare with

All 5 side by side →

Cartesia Sonic 3 vs Simba 3.2 →Cartesia Sonic 3 vs Qwen-Audio-3.0-TTS-Plus →Cartesia Sonic 3 vs Eleven v3 →Cartesia Sonic 3 vs Fish Audio S2 Pro →Cartesia Sonic 3 vs Chatterbox →

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