Cartesia Sonic 3 text-to-speech model is now available on Amazon SageMaker JumpStart

Published
February 4, 2026
https://aws.amazon.com/about-aws/whats-new/2026/02/cartesia-sonic-3-on-sagemaker-jumpstart

Cartesia’s Sonic 3 Model Available in SageMaker JumpStart

Cartesia's Sonic 3 model, a state space model (SSM) for streaming text-to-speech (TTS), is now available in Amazon SageMaker JumpStart. This model delivers high naturalness, accurate transcript following, and industry-leading latency with fine-grained control over volume, speed, and emotion.

Sonic 3 supports 42 languages and provides advanced controllability through API parameters and SSML tags. It includes natural laughter support, stable voices optimized for voice agents, and emotive voices for expressive characters. With sub-100ms latency, Sonic 3 enables real-time conversational AI that captures human speech nuances including emotions and tonal shifts.

What to do

  • Navigate to the SageMaker JumpStart model catalog in the SageMaker Studio.
  • Use the SageMaker Python SDK to deploy the model to your AWS account.

Source: AWS release notes




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