Unmatched voiceover capabilities
Experience lifelike voiceover with fine control over pitch, speed, and emotion.
Unique voices
Access a diverse range of unique voices in multiple languages.
No hallucination
Ensure accurate and reliable voiceover without unexpected errors or distortions.
Ultra-fast response
Enjoy rapid voiceover generation with a time-to-first-audio of just 40ms.
High emotional range
Achieve a wide emotional range in voiceover, adapting to content and context seamlessly.
Expansive voice library
Choose from thousands of voices to match your content perfectly, enhancing storytelling.
Precise control
Control emotions, timing, and inflections for perfect voiceover delivery.
What our customers say
Join the growing list of companies opting for Sonic.
"Cartesia's breakthrough voice technology significantly enhances our creative suite, giving creators the freedom to generate any voice they can imagine and furthering our goal of making it easy for anyone to create videos they're proud to share."
Gaurav Misra, Co-Founder and CEO of Captions
"Together AI's mission has always been to provide developers with the most powerful and efficient tools for building AI applications. Cartesia is leading the charge of building efficient, multimodal models from first principles, starting with their Sonic TTS model. By integrating Sonic into our platform, we're enabling developers to create sophisticated multi-modal applications that leverage the most advanced and lowest latency voice model available today, all while maintaining the simplicity and reliability our users expect."
Vipul Ved Prakash, Together AI's CEO
"Internet applications weren’t built for how we’ll use computers in the future. Those computers will see, hear, and speak like we do. We’ll interact with them like we do with each other. We designed LiveKit’s Agents framework to make it easy to build applications for this new paradigm. Cartesia—pioneers of the SSM architecture—shared our belief that real-time, multimodal AI models would be at the center of computing, making them the perfect Agents launch partner."
Russ d'Sa CEO & LiveKit co-founder
How to create AI voice over with ease
Step One
Visit Cartesia's website and explore their AI voiceover tools. Sign up for an account to get started.
Step Two
Select your desired voice and language from the expansive library. Customize pitch and speed as needed.
Step Three
Generate your voiceover and download the audio file. Use it in your projects for professional results.