From the source
Cartesia released Sonic-3.6, an updated voice model that improves naturalness and quality, with listeners preferring it over competitors in blind head-to-head tests across multiple languages.
- The model supports 44 languages, 61 locales, and 500+ preset voices, including new languages Odia and Urdu.
- It offers sub-90ms latency and is generally available via the API and playground.
