CartesiaMistral AIAudio matchupSpeech output
Sonic 3.6vs.Voxtral Mini TTS 3
Which model is better?
Sonic 3.6 does better in independent tests.
Pick Sonic 3.6 for
Pick Voxtral Mini TTS 3 for
Shared tests
Independent evaluators and leaderboards only, the newest shared snapshot per evaluator. With 95 % ranges a lead counts when they do not overlap; for hit rates, when it holds in a 95 % test. Without any uncertainty figure at most “slightly ahead”.
Artificial Analysis
Sonic 3.6 aheadSonic 3.6 is clearly ahead in 2 of 2 subtests, Voxtral Mini TTS 3 in none.
Artificial Analysis Controlled Voice Arena Elo
95 % ranges 1,135 to 1,159 and 1,054 to 1,084, as of November 3, 2026
Artificial Analysis Provider Voice Arena preference
95 % ranges 1,280 to 1,306 and 1,204 to 1,232, as of November 3, 2026
Source · latest November 3, 2026
DesignArena
Sonic 3.6 slightly aheadDesignArena Audio Realism Elo
as of October 28, 2026
Source · latest October 28, 2026
All data side by side
Prices are verbatim from the provider, because audio models bill per minute, character or token.
| Sonic 3.6 | Voxtral Mini TTS 3 | |
|---|---|---|
| Task | Speech output | Speech output |
| Developer | Cartesia | Mistral AI |
| Status | Active | Public preview |
| Released | n/a | October 20, 2026 |
| Weights | proprietary | n/a |
| Runs locally | no | no |
| Price | n/a | USD 13 per 1 million characters; cached rate USD 1.30 per 1 million characters |
| Popularity (out of 100) | 39 | 0 |