Reference
Remy Reference/models/Cartesia Sonic 3
C

Cartesia Sonic 3

Cartesia Sonic 3, a text-to-speech model from Cartesia.
speechModelOverride: { model: "cartesia-sonic-3" }
Cartesia·Released October 2025
Pricing
List price
~$37 / 1M characters
Per 1M characters
$37.38
Specifications
Released
October 2025
Model string
sonic-3
Capabilities
RealtimeLow latency
Parameters
Model options, passed in speechModelOverride.config.
ParameterTypeDefaultRange / options
voice
A Cartesia voice UUID. Browse and preview voices at https://play.cartesia.ai/voices.
Text
Use this model
await mindstudio.textToSpeech({
  text: "...",
  speechModelOverride: {
    model: "cartesia-sonic-3",
  },
});