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.

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.