whatmodel.sh / tts / Sonic 3.6

Sonic 3.6

+ contribute
Update model informationAdd a place to run itAdd a test resultPropose a benchmarkCorrect a benchmark scoreEdit data on GitHub

Sonic 3.6 is a closed-weights text-to-speech model from Cartesia, released August 2026. Licence: proprietary.

No comparable score yet. No reviewed benchmark results yet.

$ how it compares

Scored text-to-speech models released closest to Sonic 3.6, out of 148 with a score, then more from Cartesia.

#modelscorewhereRAMreleased
7Qwen-Audio-3.0-TTS-Plus Alibaba69±2api $20.00/M chars2026-09
12FireRedTTS3 (base) FireRedTeam (Xiaohongshu)67±3local~12GB2026-08
13Simba 3.2 Speechify67±3api $6.00/M chars2026-07
29Wayu-Paxa-TTS-Edge Wayu Research / Paxa Labs64±4local~0.3GB2026-08
48Inworld Realtime TTS-2 Inworld61±2api $25.00/M chars2026-08
more from Cartesia
35Sonic 3.5 Cartesia63±2comparison only2026-05
57Sonic 3 Cartesia58±2api $65.00/M chars2025-10
59Sonic 2 Cartesia58±3comparison only2025-03

see all text-to-speech models · find the ones that fit your machine

$ where to run it

Through an API

api · $38.00/M chars · cartesia.ai ↗ · price sourceUSD per 1M characters for Sonic TTS: Cartesia states 1 credit = 1 character and publishes overage at $38 per 1M credits on the Scale plan ($299/month, lowest published self-serve rate); Startup $45 and Pro $65 per 1M credits. Product: Sonic text-to-speech API. API model: sonic-3.6. Settings: Scale-plan overage rate. Price basis: vendor USD-per-credit rate x vendor-stated 1 credit per character. Exclusions: monthly plan fee, voice agents, telephony. Currency: USD. Cartesia official pricing page, observed 2026-09-25.

$ improve this page

Update model informationAdd a place to run itAdd a test resultPropose a benchmarkCorrect a benchmark scoreEdit data on GitHub

Use a short GitHub form or edit the data through a pull request. Every number needs a source; here's which ones we can use.

data updated · sources and licences · json