Cartesia· Sonic / InkModel update

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.

From the source

Sonic-3.6 is the culmination of our latest advances in architectures that learn efficiently from multilingual audio across pre- and post-training. Sonic-3.6 makes huge strides compared to Sonic-3.5 in naturalness and quality, with listeners preferring it in up to 93% of blind head-to-head tests across fifteen locales.

cartesia.ai