Compare voice AI.
See why teams choose Cartesia.
Cartesia vs the rest
Where Sonic beats other voice AI platforms, page by page.
ElevenLabs vs the rest
Explore how ElevenLabs compares with other speech platforms, voiceover tools, and APIs.
Why teams choose Cartesia
Learn how to build with speech
Go from comparing providers to testing a working application. Explore browser speech and a Python API example.
Voice AI comparison FAQs
Which text-to-speech model sounds most natural?
Sonic 3.6. It ranks first on the Artificial Analysis Provider Voice Arena, where listeners compare two clips without being told which model made either. Hear the voices.
How fast is Cartesia for a voice agent?
Sonic returns first audio in under 90ms and streams over WebSocket, so an agent starts speaking before the full reply is generated. Explore Sonic.
Can I clone a voice with Cartesia?
Yes. An instant clone takes 10 seconds of audio and a professional clone takes 30 minutes. Both are self-serve on the public API. Explore voice cloning.
Can I try Cartesia before choosing a provider?
Yes. The free plan includes 20,000 credits. Explore the voice library to hear samples, then try your own script in the Playground.
How long does it take to switch to Cartesia?
One to two weeks for most teams. Cartesia is integrated with the major voice agent platforms, and every model is on the public API.
Hear Sonic on your own script.
Choose a voice and try the words your users will hear.