The fastest, ultra-realistic voice AI platform
The fastest, ultra-
realistic voice AI platform
Powered by high performance State Space Model technology. Purpose-built for developers.
Powered by high performance State Space Model technology. Purpose-built for developers.
Play Demo
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Play Demo
0:00/1:34
Developers
love
how
easy
Cartesia
makes
it
to
incorporate
real-time
AI
voices

, voice cloning

, voice
infilling

and
more
into
their
applications.
Teams
trust
Cartesia
to
deliver
the
lowest-latency,
highest-quality
voice
AI
for
interactive
voice
apps.

Developers
love
how
easy
Cartesia
makes
it
to
incorporate
real-time
AI
voices
, voice cloning
, voice
infilling
and
more
into
their
applications.
Teams
trust
Cartesia
to
deliver
the
lowest-latency,
highest-quality
voice
AI
for
interactive
voice
apps.

Developers
love
how
easy
Cartesia
makes
it
to
incorporate
real-time
AI
voices
, voice cloning
, voice
infilling
and
more
into
their
applications.
Teams
trust
Cartesia
to
deliver
the
lowest-latency,
highest-quality
voice
AI
for
interactive
voice
apps.

Perfect for real-time voice agents
Perfect for real-time voice agents
Perfect for real-time voice agents
Best-in-class pronunciations: Get complex phone numbers, addresses, and IDs right every time.
Best-in-class pronunciations: Get complex phone numbers, addresses, and IDs right every time.

Human

Cartesia Agent

Human

Cartesia Agent

Human

Cartesia Agent
Low-latency. Cartesia Sonic has the lowest latency of any AI voice model—meaning your voice agents can spend more time understanding, thinking, and acting on user inputs.
Low-latency. Cartesia Sonic has the lowest latency of any AI voice model—meaning your voice agents can spend more time understanding, thinking, and acting on user inputs.
Best-in-class pronunciations. Get complex phone numbers, addresses, and IDs right every time.
Best-in-class pronunciations. Get complex phone numbers, addresses, and IDs right every time.
Best-in-class
AI voice cloning
Best-in-class
AI voice cloning
Best-in-class
AI voice cloning
Leverage AI voice cloning and AI voice changer for high-fidelity, realistic voice replication with unmatched accuracy.
Leverage AI voice cloning and AI voice changer for high-fidelity, realistic voice replication with unmatched accuracy.
Voice Cloning
Voice Changer
Text-to-Speech

Source

Clone
Voice Cloning
Voice Changer
Text-to-Speech

Source

Clone
Voice Cloning
Voice Changer
Text-to-Speech

Source

Clone
Seamless integrations
Seamless integrations
Seamless integrations
Integrate Cartesia with Twilio, Pipecat, LiveKit, or Rasa with ease.
Integrate Cartesia with Twilio, Pipecat, LiveKit, or Rasa with ease.
Speak every language
Speak every language
Speak every language
Sonic supports native speech in 15 languages. Localize a given voice to any accent or language.
Sonic supports native speech in 15 languages. Localize a given voice to any accent or language.
English
American
Spanish
Latin
French
Portuguese
Brazilian
Hindi
Chinese
Russian
Dutch
Japanese
Turkish
Korean
German
Swedish
Italian
Polish
Coming soon...
English
American
Spanish
Latin
French
Portuguese
Brazilian
Hindi
Chinese
Russian
Dutch
Japanese
Turkish
Korean
German
Swedish
Italian
Polish
Coming soon...
English
American
Spanish
Latin
French
Portuguese
Brazilian
Hindi
Chinese
Russian
Dutch
Japanese
Turkish
Korean
German
Swedish
Italian
Polish
Coming soon...


Sonic
Sonic
Sonic
The flagship State Space Model behind our seamless, ultra-realistic AI voices.
The flagship State Space Model behind our seamless, ultra-realistic AI voices.


Custom Deployments
Custom Deployments
Custom Deployments
Deploy voice AI anywhere—whether it’s on-prem or on-device.
Deploy voice AI anywhere—whether it’s on-prem or on-device.


Pioneering new architectures for the next generation of AI.
Pioneering new architectures for the next generation of AI.
Pioneering new architectures for the next generation of AI.

Enterprise-grade Security. From Cloud to Local.
Enterprise-grade Security. From Cloud to Local.
Enterprise-grade Security. From Cloud to Local.
Your data is protected by industry-leading SOC 2 Type 2, HIPAA, and PCI compliance standards, whether in our cloud or on-premises.
Your data is protected by industry-leading SOC 2 Type 2, HIPAA, and PCI compliance standards, whether in our cloud or on-premises.


Our mission
Our mission
Our mission
We aim to build the next generation of AI. Ubiquitous, interactive intelligence that runs wherever you are. We're pioneering the model architectures that will make it possible.
We aim to build the next generation of AI. Ubiquitous, interactive intelligence that runs wherever you are. We're pioneering the model architectures that will make it possible.

