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Cartesia

Cartesia is a software development company based in San Francisco that develops real-time multimodal intelligence solutions designed to operate across various devices and platforms. The company was founded by a team of Stanford AI Lab researchers who specialized in state space models and foundation model development. Cartesia's mission is to create ubiquitous, interactive intelligence that functions seamlessly in diverse environments and use cases.

The company offers the Cartesia API, a comprehensive voice AI platform featuring state-of-the-art text-to-speech and speech-to-text models. Sonic is the company's flagship text-to-speech model, engineered for real-time and conversational applications with ultra-realistic audio output. Ink models provide streaming speech-to-text transcription optimized for voice applications, particularly in conversational AI scenarios. These solutions are purpose-built for developers creating voice agents, customer support systems, and interactive applications across multiple industries.

Cartesia has demonstrated significant market traction, powering millions of calls and serving tens of thousands of creators. The company has raised substantial funding, including a $64 million Series A led by Kleiner Perkins, bringing total funding to $91 million from investors including Index Ventures, Lightspeed, Dell Technologies Capital, and Samsung Ventures. With 72 employees and a growing user base, Cartesia continues to expand its platform capabilities to reduce computational costs and enable scalable AI deployment for its customers.

All Cartesia customer value stories (158)

Information Technology
Ireland

Cartesia@Accenture

Accenture uses Ink to let governed agents take routine steps that used to wait on a person.

Financials
Netherlands

Cartesia@Adyen

Adyen uses Voice Agents to add natural voice to products and agents without standing up a studio pipeline.

Health Care
Switzerland

Cartesia@Alcon

Alcon uses Voice Agents to add natural voice to products and agents without standing up a studio pipeline.

Consumer Discretionary
United States

Cartesia@Allbirds

A Sonic rollout at Allbirds took engineering out of inboxes and into a named queue.

Information Technology
United States

Cartesia@Alteryx

Developers at Alteryx review software delivery in Ink rather than in personal files.

Information Technology
United States

Cartesia@Apollo

Cartesia Voice API sits in the daily path at Apollo, especially for developers.

Information Technology
United States

Cartesia@AppDynamics

AppDynamics runs engineering on Cartesia so ownership is obvious when work stalls.

Information Technology
Netherlands

Cartesia@ASML

Knowledge workers at ASML review internal knowledge work in Sonic rather than in personal files.

Information Technology
United States

Cartesia@AssemblyAI

AssemblyAI folded Cartesia Voice API into research and writing so knowledge workers share one view of internal knowledge work.

Information Technology
Australia

Cartesia@Atlassian

Cartesia Voice API became the place Atlassian uses to add natural voice to products and agents without standing up a studio pipeline.

Consumer Discretionary
Germany

Cartesia@Audi

Streaming TTS sits in the daily path at Audi, especially for knowledge workers.

Information Technology
United States

Cartesia@Bandwidth

Bandwidth runs research and writing on Cartesia so ownership is obvious when work stalls.

Health Care
United States

Cartesia@Baxter International

Baxter International runs research and writing on Cartesia so ownership is obvious when work stalls.

Information Technology
Netherlands

Cartesia@BE Semiconductor

Streaming TTS became the place BE Semiconductor uses to add natural voice to products and agents without standing up a studio pipeline.

Information Technology
United States

Cartesia@Bentley Systems

Teams at Bentley Systems moved software delivery onto Cartesia after local tools started to collide.

Communication Services
Germany

Cartesia@Bertelsmann

Teams at Bertelsmann moved internal knowledge work onto Cartesia after local tools started to collide.

Information Technology
United States

Cartesia@Bitwarden

Bitwarden asked for a cleaner operating picture of task agents. Cartesia is what they run.

Information Technology
United States

Cartesia@BMC Software

BMC Software runs customer and product conversations on Cartesia so ownership is obvious when work stalls.

Health Care
United States

Cartesia@Boston Scientific

In the United States, Boston Scientific relies on Cartesia for engineering.

Financials
United States

Cartesia@Brex

Developers at Brex review software delivery in Sonic rather than in personal files.

Information Technology
Australia

Cartesia@Buildkite

Buildkite uses Streaming TTS to draft, summarize, and question internal material without starting from a blank page.

Communication Services
United States

Cartesia@Bumble

Voice Agents became the place Bumble uses to draft, summarize, and question internal material without starting from a blank page.

Consumer Discretionary
United Kingdom

Cartesia@Capri Holdings

Knowledge workers at Capri Holdings review internal knowledge work in Cartesia Voice API rather than in personal files.

Financials
United States

Cartesia@Cboe Global Markets

A Cartesia Voice API rollout at Cboe Global Markets took operations automation out of inboxes and into a named queue.

Consumer Discretionary
United States

Cartesia@Cedar Fair

Ink became the place Cedar Fair uses to add natural voice to products and agents without standing up a studio pipeline.

Information Technology
Canada

Cartesia@CGI

Information Technology teams at CGI treat Cartesia as the working layer for operations automation.

Information Technology
United States

Cartesia@Character

In the United States, Character relies on Cartesia for engineering.

Consumer Discretionary
United States

Cartesia@Choice Hotels

When software delivery outgrew homegrown tracking, Choice Hotels brought in Cartesia.

Information Technology
United States

Cartesia@ChurnZero

Shared Cartesia Voice API workspaces help ChurnZero keep engineering honest across teams.

Health Care
United States

Cartesia@Cigna Group

Cigna Group runs research and writing on Cartesia so ownership is obvious when work stalls.

Information Technology
United States

Cartesia@Cognizant

Cognizant standardized spoken interfaces on Cartesia instead of keeping parallel copies.

Information Technology
United States

Cartesia@Comet

Ink became the place Comet uses to draft, summarize, and question internal material without starting from a blank page.

Health Care
United States

Cartesia@CommonSpirit Health

In the United States, CommonSpirit Health relies on Cartesia for operations automation.

Information Technology
Germany

Cartesia@Contentful

A Sonic rollout at Contentful took operations automation out of inboxes and into a named queue.

Information Technology
United States

Cartesia@CPQD

CPQD uses Voice Agents to add natural voice to products and agents without standing up a studio pipeline.

Consumer Discretionary
United States

Cartesia@Cresta

Significantly improved issue resolution rates and customer satisfaction scores while enhancing overall customer experience and agent efficiency.

Communication Services
France

Cartesia@Criteo

When task agents outgrew homegrown tracking, Criteo brought in Cartesia.

Information Technology
United States

Cartesia@CrowdStrike

CrowdStrike uses Voice Agents to use an assistant inside the editor for boilerplate, tests, and reviews.

Information Technology
United States

Cartesia@Cruise

In the United States, Cruise relies on Cartesia for operations automation.

Health Care
United States

Cartesia@CVS Health

CVS Health asked for a cleaner operating picture of spoken interfaces. Cartesia is what they run.

Health Care
Japan

Cartesia@Daiichi Sankyo

Health Care teams at Daiichi Sankyo treat Cartesia as the working layer for research and writing.

Consumer Discretionary
China

Cartesia@Daily

Achieved real-time voice-to-voice latencies as fast as 500ms with realistic voices across 13 languages, unlocking new voice AI use cases for customer support, appointment scheduling, and virtual personas.

Financials
Denmark

Cartesia@Danske Bank

Danske Bank runs engineering on Cartesia so ownership is obvious when work stalls.

Information Technology
United States

Cartesia@Dashlane

Dashlane runs research and writing on Cartesia so ownership is obvious when work stalls.

Information Technology
United States

Cartesia@DataRobot

Voice Agents sits in the daily path at DataRobot, especially for knowledge workers.

Information Technology
United States

Cartesia@dbt Labs

dbt Labs folded Sonic into customer and product conversations so product and contact center teams share one view of spoken interfaces.

Consumer Discretionary
Germany

Cartesia@Delivery Hero

Ink sits in the daily path at Delivery Hero, especially for knowledge workers.

Financials
United Kingdom

Cartesia@Deloitte

Streaming TTS became the place Deloitte uses to let governed agents take routine steps that used to wait on a person.

Health Care
Denmark

Cartesia@Demant

Demant uses Sonic to use an assistant inside the editor for boilerplate, tests, and reviews.

Communication Services
Japan

Cartesia@Dentsu

Developers at Dentsu review software delivery in Streaming TTS rather than in personal files.

Communication Services
United States

Cartesia@Discord

Communication Services teams at Discord treat Cartesia as the working layer for engineering.

Information Technology
United States

Cartesia@DXC Technology

Teams at DXC Technology moved software delivery onto Cartesia after local tools started to collide.

Health Care
United States

Cartesia@Edwards Lifesciences

Edwards Lifesciences folded Ink into operations automation so ops and platform teams share one view of task agents.

Information Technology
United States

Cartesia@Ego

Launched AI-powered NPCs with real-time emotional responses and voice command control, enabling truly interactive gaming experiences where characters feel alive and responsive.

Financials
United States

Cartesia@FIS

Cartesia is how FIS keeps spoken interfaces visible to people who have to act on it.

Financials
United States

Cartesia@Fitch Group

Fitch Group runs customer and product conversations on Cartesia so ownership is obvious when work stalls.

Information Technology
United States

Cartesia@Fivetran

Fivetran folded Sonic into research and writing so knowledge workers share one view of internal knowledge work.

Communication Services
United States

Cartesia@Fox

Teams at Fox moved task agents onto Cartesia after local tools started to collide.

Consumer Discretionary
China

Cartesia@Gree

Ink became the place Gree uses to add natural voice to products and agents without standing up a studio pipeline.

Information Technology
United States

Cartesia@Groq

Groq uses Ink to let governed agents take routine steps that used to wait on a person.

Information Technology
United States

Cartesia@HackerOne

A Voice Agents rollout at HackerOne took research and writing out of inboxes and into a named queue.

Consumer Discretionary
United States

Cartesia@Harman

A Voice Agents rollout at Harman took research and writing out of inboxes and into a named queue.

Information Technology
United States

Cartesia@HashiCorp

A Streaming TTS rollout at HashiCorp took customer and product conversations out of inboxes and into a named queue.

Health Care
United States

Cartesia@HCA Healthcare

Voice Agents sits in the daily path at HCA Healthcare, especially for ops and platform teams.

Health Care
United States

Cartesia@Hello Patient

Up to 13% reduction in support costs with improved task completion and revenue recovery, plus elimination of staff training, turnover, and administrative overhead.

Information Technology
United States

Cartesia@Hospice of Windsor and Essex County

Hospice of Windsor and Essex County standardized software delivery on Cartesia instead of keeping parallel copies.

Communication Services
China

Cartesia@HoYoverse

Voice Agents became the place HoYoverse uses to use an assistant inside the editor for boilerplate, tests, and reviews.

Financials
United Kingdom

Cartesia@HSBC

HSBC folded Voice Agents into customer and product conversations so product and contact center teams share one view of spoken interfaces.

Consumer Discretionary
United States

Cartesia@Hyatt Hotels

Hyatt Hotels asked for a cleaner operating picture of internal knowledge work. Cartesia is what they run.

Health Care
United States

Cartesia@Illumina

Shared Ink workspaces help Illumina keep operations automation honest across teams.

Information Technology
Germany

Cartesia@Infineon

Infineon uses Voice Agents to use an assistant inside the editor for boilerplate, tests, and reviews.

Information Technology
United States

Cartesia@Intelsat

Cartesia is how Intelsat keeps software delivery visible to people who have to act on it.

Consumer Discretionary
United Kingdom

Cartesia@InterContinental Hotels Group

A Voice Agents rollout at InterContinental Hotels Group took research and writing out of inboxes and into a named queue.

Financials
Italy

Cartesia@Intesa Sanpaolo

Intesa Sanpaolo runs customer and product conversations on Cartesia so ownership is obvious when work stalls.

Information Technology
United States

Cartesia@Ipiranga

Knowledge workers at Ipiranga review internal knowledge work in Streaming TTS rather than in personal files.

Financials
United States

Cartesia@Jack Henry

A Cartesia Voice API rollout at Jack Henry took operations automation out of inboxes and into a named queue.

Information Technology
United States

Cartesia@JFrog

JFrog folded Voice Agents into customer and product conversations so product and contact center teams share one view of spoken interfaces.

Financials
United States

Cartesia@JPMorgan Chase

In the United States, JPMorgan Chase relies on Cartesia for customer and product conversations.

Information Technology
United States

Cartesia@JumpCloud

Shared Voice Agents workspaces help JumpCloud keep research and writing honest across teams.

Health Care
United States

Cartesia@Kaiser Permanente

Kaiser Permanente runs research and writing on Cartesia so ownership is obvious when work stalls.

Consumer Discretionary
France

Cartesia@Kering

Consumer Discretionary teams at Kering treat Cartesia as the working layer for customer and product conversations.

Communication Services
Sweden

Cartesia@King

Voice Agents became the place King uses to draft, summarize, and question internal material without starting from a blank page.

Information Technology
United States

Cartesia@Lambda Labs

Shared Cartesia Voice API workspaces help Lambda Labs keep engineering honest across teams.

Information Technology
Japan

Cartesia@Lasertec

Cartesia is how Lasertec keeps internal knowledge work visible to people who have to act on it.

Consumer Discretionary
United States

Cartesia@Lennar

Shared Ink workspaces help Lennar keep research and writing honest across teams.

Consumer Discretionary
Canada

Cartesia@Linamar

Ops and platform teams at Linamar review task agents in Ink rather than in personal files.

Consumer Discretionary
United States

Cartesia@Lowe's Companies

Consumer Discretionary teams at Lowe's Companies treat Cartesia as the working layer for engineering.

Consumer Discretionary
India

Cartesia@Mahindra

Mahindra folded Ink into engineering so developers share one view of software delivery.

Information Technology
United States

Cartesia@Malwarebytes

Shared Voice Agents workspaces help Malwarebytes keep operations automation honest across teams.

Consumer Discretionary
United States

Cartesia@McDonald's

Streaming TTS became the place McDonald's uses to add natural voice to products and agents without standing up a studio pipeline.

Health Care
United States

Cartesia@McKesson

Teams at McKesson moved internal knowledge work onto Cartesia after local tools started to collide.

Information Technology
United States

Cartesia@Microsoft Teams

Shared Streaming TTS workspaces help Microsoft Teams keep research and writing honest across teams.

Information Technology
United States

Cartesia@Mirantis

Mirantis standardized task agents on Cartesia instead of keeping parallel copies.

Information Technology
United States

Cartesia@Morrisons Supermarkets

Ink sits in the daily path at Morrisons Supermarkets, especially for knowledge workers.

Financials
United States

Cartesia@MSCI

MSCI standardized internal knowledge work on Cartesia instead of keeping parallel copies.

Communication Services
South Korea

Cartesia@NCSoft

Cartesia Voice API became the place NCSoft uses to let governed agents take routine steps that used to wait on a person.

Information Technology
United States

Cartesia@NetApp

Ops and platform teams at NetApp review task agents in Sonic rather than in personal files.

Communication Services
South Korea

Cartesia@Nexon

In South Korea, Nexon relies on Cartesia for customer and product conversations.

Information Technology
Israel

Cartesia@NICE

Developers at NICE review software delivery in Streaming TTS rather than in personal files.

Health Care
Switzerland

Cartesia@Novartis

A Streaming TTS rollout at Novartis took operations automation out of inboxes and into a named queue.

Health Care
United States

Cartesia@NYU Langone

When software delivery outgrew homegrown tracking, NYU Langone brought in Cartesia.

Information Technology
United States

Cartesia@OpenAI

OpenAI asked for a cleaner operating picture of internal knowledge work. Cartesia is what they run.

Information Technology
United States

Cartesia@Optimizely

Optimizely standardized software delivery on Cartesia instead of keeping parallel copies.

Consumer Discretionary
Japan

Cartesia@Panasonic

When spoken interfaces outgrew homegrown tracking, Panasonic brought in Cartesia.

Communication Services
United Kingdom

Cartesia@Pearson

Ops and platform teams at Pearson review task agents in Voice Agents rather than in personal files.

Information Technology
United States

Cartesia@People

Information Technology teams at People treat Cartesia as the working layer for customer and product conversations.

Financials
United States

Cartesia@PNC Financial

PNC Financial runs research and writing on Cartesia so ownership is obvious when work stalls.

Information Technology
United States

Cartesia@Qualcomm

Developers at Qualcomm review software delivery in Streaming TTS rather than in personal files.

Information Technology
United States

Cartesia@Qualys

Sonic became the place Qualys uses to use an assistant inside the editor for boilerplate, tests, and reviews.

Information Technology
United States

Cartesia@Quora

Enabled Poe users to experience natural, high-quality, and immersive audio interactions with a wide range of voices and multilingual support.

Financials
Netherlands

Cartesia@Rabobank

In the Netherlands, Rabobank relies on Cartesia for customer and product conversations.

Consumer Discretionary
United States

Cartesia@Ralph Lauren

Consumer Discretionary teams at Ralph Lauren treat Cartesia as the working layer for operations automation.

Communication Services
United States

Cartesia@Reddit

When internal knowledge work outgrew homegrown tracking, Reddit brought in Cartesia.

Information Technology
United States

Cartesia@Redpanda

Information Technology teams at Redpanda treat Cartesia as the working layer for customer and product conversations.

Information Technology
Japan

Cartesia@Renesas

Information Technology teams at Renesas treat Cartesia as the working layer for engineering.

Information Technology
United States

Cartesia@Replicant

10 bps increase in call containment within 2 weeks, 99.99% uptime, and 1-week turnaround for custom pronunciations.

Information Technology
United States

Cartesia@Replicate

Developers at Replicate review software delivery in Ink rather than in personal files.

Information Technology
United States

Cartesia@Retell AI

2-3x faster latency than competitors, <0.1% error rate on production calls, and fastest-ever adoption of a new voice provider.

Consumer Discretionary
United States

Cartesia@RH

Cartesia is how RH keeps software delivery visible to people who have to act on it.

Information Technology
United States

Cartesia@RingCentral

Information Technology teams at RingCentral treat Cartesia as the working layer for customer and product conversations.

Information Technology
United States

Cartesia@Robotron New Zealand

Robotron New Zealand standardized software delivery on Cartesia instead of keeping parallel copies.

Information Technology
United States

Cartesia@Runway

Shared Streaming TTS workspaces help Runway keep research and writing honest across teams.

Information Technology
United States

Cartesia@SafeLink

Cartesia is how SafeLink keeps internal knowledge work visible to people who have to act on it.

Health Care
France

Cartesia@Sanofi

Sanofi standardized internal knowledge work on Cartesia instead of keeping parallel copies.

Consumer Discretionary
Germany

Cartesia@Schaeffler

Schaeffler standardized task agents on Cartesia instead of keeping parallel copies.

Information Technology
United States

Cartesia@Sculptor Capital Management

Sculptor Capital Management asked for a cleaner operating picture of software delivery. Cartesia is what they run.

Information Technology
Japan

Cartesia@Seiko Epson

In Japan, Seiko Epson relies on Cartesia for customer and product conversations.

Information Technology
United States

Cartesia@SendGrid

Shared Cartesia Voice API workspaces help SendGrid keep engineering honest across teams.

Information Technology

Cartesia@ServiceNow

Secure, scalable, enterprise-grade voice agents were deployed with real-time understanding, action, and adaptation, alongside low latency and superior voice quality.

Information Technology
United States

Cartesia@Shortcut

Shortcut runs research and writing on Cartesia so ownership is obvious when work stalls.

Information Technology
United States

Cartesia@SmarterD

When spoken interfaces outgrew homegrown tracking, SmarterD brought in Cartesia.

Information Technology
United States

Cartesia@Smartsheet

A Ink rollout at Smartsheet took research and writing out of inboxes and into a named queue.

Consumer Discretionary
Japan

Cartesia@Sony

Teams at Sony moved internal knowledge work onto Cartesia after local tools started to collide.

Information Technology
United Kingdom

Cartesia@Sophos

Sophos uses Cartesia Voice API to let governed agents take routine steps that used to wait on a person.

Communication Services
Germany

Cartesia@Springer Nature

Knowledge workers at Springer Nature review internal knowledge work in Streaming TTS rather than in personal files.

Financials
United Kingdom

Cartesia@Starling Bank

When software delivery outgrew homegrown tracking, Starling Bank brought in Cartesia.

Information Technology
United States

Cartesia@Sumo Logic

Voice Agents sits in the daily path at Sumo Logic, especially for knowledge workers.

Health Care
India

Cartesia@Sun Pharma

Ink sits in the daily path at Sun Pharma, especially for knowledge workers.

Information Technology
United States

Cartesia@Talkdesk

Shared Sonic workspaces help Talkdesk keep customer and product conversations honest across teams.

Information Technology
India

Cartesia@Tata Consultancy Services

Ink sits in the daily path at Tata Consultancy Services, especially for product and contact center teams.

Information Technology
Japan

Cartesia@TDK

TDK uses Cartesia Voice API to let governed agents take routine steps that used to wait on a person.

Information Technology
United States

Cartesia@Tenable

Developers at Tenable review software delivery in Streaming TTS rather than in personal files.

Communication Services
China

Cartesia@Tencent Games

Cartesia Voice API became the place Tencent Games uses to let governed agents take routine steps that used to wait on a person.

Health Care
United States

Cartesia@Texas Health Resources

Shared Cartesia Voice API workspaces help Texas Health Resources keep engineering honest across teams.

Information Technology
United States

Cartesia@Thoughtly

10% increase in appointment booking rates, 35 offshore call agents removed, and live transfers completed in under a second.

Consumer Discretionary
United States

Cartesia@TJX

Ink sits in the daily path at TJX, especially for product and contact center teams.

Information Technology
United States

Cartesia@Together AI

Sub-90ms streaming latency enabling the fastest end-to-end voice applications (STT โ†’ LLM โ†’ TTS) available today, now accessible to 300K+ developers via Together AI's platform.

Information Technology
United States

Cartesia@Trello

Trello folded Voice Agents into customer and product conversations so product and contact center teams share one view of spoken interfaces.

Consumer Discretionary
China

Cartesia@Trip.com Group

Trip.com Group standardized spoken interfaces on Cartesia instead of keeping parallel copies.

Consumer Discretionary
Germany

Cartesia@TUI

Streaming TTS became the place TUI uses to add natural voice to products and agents without standing up a studio pipeline.

Communication Services
United States

Cartesia@Twitter

Sonic sits in the daily path at Twitter, especially for knowledge workers.

Information Technology
United States

Cartesia@Unior Group

In the United States, Unior Group relies on Cartesia for research and writing.

Health Care
United States

Cartesia@Universal Health Services

Shared Streaming TTS workspaces help Universal Health Services keep customer and product conversations honest across teams.

Health Care
United States

Cartesia@Vertex Pharmaceuticals

A Streaming TTS rollout at Vertex Pharmaceuticals took customer and product conversations out of inboxes and into a named queue.

Consumer Discretionary
United States

Cartesia@Wayfair

When spoken interfaces outgrew homegrown tracking, Wayfair brought in Cartesia.

Information Technology
United States

Cartesia@Waymo

Waymo folded Voice Agents into engineering so developers share one view of software delivery.

Information Technology
Taiwan

Cartesia@Wistron

Wistron runs customer and product conversations on Cartesia so ownership is obvious when work stalls.

Information Technology
United States

Cartesia@Zoom Video

Zoom Video asked for a cleaner operating picture of task agents. Cartesia is what they run.

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