Solution

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)
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Accenture
Accenture uses Ink to let governed agents take routine steps that used to wait on a person.
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Adyen
Adyen uses Voice Agents to add natural voice to products and agents without standing up a studio pipeline.
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Alcon
Alcon uses Voice Agents to add natural voice to products and agents without standing up a studio pipeline.
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Allbirds
A Sonic rollout at Allbirds took engineering out of inboxes and into a named queue.
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Alteryx
Developers at Alteryx review software delivery in Ink rather than in personal files.
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Apollo
Cartesia Voice API sits in the daily path at Apollo, especially for developers.
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AppDynamics
AppDynamics runs engineering on Cartesia so ownership is obvious when work stalls.
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ASML
Knowledge workers at ASML review internal knowledge work in Sonic rather than in personal files.
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AssemblyAI
AssemblyAI folded Cartesia Voice API into research and writing so knowledge workers share one view of internal knowledge work.
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Atlassian
Cartesia Voice API became the place Atlassian uses to add natural voice to products and agents without standing up a studio pipeline.
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Audi
Streaming TTS sits in the daily path at Audi, especially for knowledge workers.
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Bandwidth
Bandwidth runs research and writing on Cartesia so ownership is obvious when work stalls.
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Baxter International
Baxter International runs research and writing on Cartesia so ownership is obvious when work stalls.
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BE Semiconductor
Streaming TTS became the place BE Semiconductor uses to add natural voice to products and agents without standing up a studio pipeline.
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Bentley Systems
Teams at Bentley Systems moved software delivery onto Cartesia after local tools started to collide.
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Bertelsmann
Teams at Bertelsmann moved internal knowledge work onto Cartesia after local tools started to collide.
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Bitwarden
Bitwarden asked for a cleaner operating picture of task agents. Cartesia is what they run.
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BMC Software
BMC Software runs customer and product conversations on Cartesia so ownership is obvious when work stalls.
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Boston Scientific
In the United States, Boston Scientific relies on Cartesia for engineering.
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Brex
Developers at Brex review software delivery in Sonic rather than in personal files.
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Buildkite
Buildkite uses Streaming TTS to draft, summarize, and question internal material without starting from a blank page.
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Bumble
Voice Agents became the place Bumble uses to draft, summarize, and question internal material without starting from a blank page.
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Capri Holdings
Knowledge workers at Capri Holdings review internal knowledge work in Cartesia Voice API rather than in personal files.
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Cboe Global Markets
A Cartesia Voice API rollout at Cboe Global Markets took operations automation out of inboxes and into a named queue.
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Cedar Fair
Ink became the place Cedar Fair uses to add natural voice to products and agents without standing up a studio pipeline.
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CGI
Information Technology teams at CGI treat Cartesia as the working layer for operations automation.
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Character
In the United States, Character relies on Cartesia for engineering.
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Choice Hotels
When software delivery outgrew homegrown tracking, Choice Hotels brought in Cartesia.
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ChurnZero
Shared Cartesia Voice API workspaces help ChurnZero keep engineering honest across teams.
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Cigna Group
Cigna Group runs research and writing on Cartesia so ownership is obvious when work stalls.
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Cognizant
Cognizant standardized spoken interfaces on Cartesia instead of keeping parallel copies.
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Comet
Ink became the place Comet uses to draft, summarize, and question internal material without starting from a blank page.
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CommonSpirit Health
In the United States, CommonSpirit Health relies on Cartesia for operations automation.
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Contentful
A Sonic rollout at Contentful took operations automation out of inboxes and into a named queue.
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CPQD
CPQD uses Voice Agents to add natural voice to products and agents without standing up a studio pipeline.
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Cresta
Significantly improved issue resolution rates and customer satisfaction scores while enhancing overall customer experience and agent efficiency.
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Criteo
When task agents outgrew homegrown tracking, Criteo brought in Cartesia.
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CrowdStrike
CrowdStrike uses Voice Agents to use an assistant inside the editor for boilerplate, tests, and reviews.
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Cruise
In the United States, Cruise relies on Cartesia for operations automation.
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CVS Health
CVS Health asked for a cleaner operating picture of spoken interfaces. Cartesia is what they run.
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Daiichi Sankyo
Health Care teams at Daiichi Sankyo treat Cartesia as the working layer for research and writing.
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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.
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Danske Bank
Danske Bank runs engineering on Cartesia so ownership is obvious when work stalls.
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Dashlane
Dashlane runs research and writing on Cartesia so ownership is obvious when work stalls.
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DataRobot
Voice Agents sits in the daily path at DataRobot, especially for knowledge workers.
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dbt Labs
dbt Labs folded Sonic into customer and product conversations so product and contact center teams share one view of spoken interfaces.
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Delivery Hero
Ink sits in the daily path at Delivery Hero, especially for knowledge workers.
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Deloitte
Streaming TTS became the place Deloitte uses to let governed agents take routine steps that used to wait on a person.
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Demant
Demant uses Sonic to use an assistant inside the editor for boilerplate, tests, and reviews.
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Dentsu
Developers at Dentsu review software delivery in Streaming TTS rather than in personal files.
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Discord
Communication Services teams at Discord treat Cartesia as the working layer for engineering.
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DXC Technology
Teams at DXC Technology moved software delivery onto Cartesia after local tools started to collide.
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Edwards Lifesciences
Edwards Lifesciences folded Ink into operations automation so ops and platform teams share one view of task agents.
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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.
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FIS
Cartesia is how FIS keeps spoken interfaces visible to people who have to act on it.
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Fitch Group
Fitch Group runs customer and product conversations on Cartesia so ownership is obvious when work stalls.
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Fivetran
Fivetran folded Sonic into research and writing so knowledge workers share one view of internal knowledge work.
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Fox
Teams at Fox moved task agents onto Cartesia after local tools started to collide.
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Gree
Ink became the place Gree uses to add natural voice to products and agents without standing up a studio pipeline.
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Groq
Groq uses Ink to let governed agents take routine steps that used to wait on a person.
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HackerOne
A Voice Agents rollout at HackerOne took research and writing out of inboxes and into a named queue.
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Harman
A Voice Agents rollout at Harman took research and writing out of inboxes and into a named queue.
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HashiCorp
A Streaming TTS rollout at HashiCorp took customer and product conversations out of inboxes and into a named queue.
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HCA Healthcare
Voice Agents sits in the daily path at HCA Healthcare, especially for ops and platform teams.
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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.
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Hospice of Windsor and Essex County
Hospice of Windsor and Essex County standardized software delivery on Cartesia instead of keeping parallel copies.
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HoYoverse
Voice Agents became the place HoYoverse uses to use an assistant inside the editor for boilerplate, tests, and reviews.
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HSBC
HSBC folded Voice Agents into customer and product conversations so product and contact center teams share one view of spoken interfaces.
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Hyatt Hotels
Hyatt Hotels asked for a cleaner operating picture of internal knowledge work. Cartesia is what they run.
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Illumina
Shared Ink workspaces help Illumina keep operations automation honest across teams.
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Infineon
Infineon uses Voice Agents to use an assistant inside the editor for boilerplate, tests, and reviews.
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Intelsat
Cartesia is how Intelsat keeps software delivery visible to people who have to act on it.
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InterContinental Hotels Group
A Voice Agents rollout at InterContinental Hotels Group took research and writing out of inboxes and into a named queue.
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Intesa Sanpaolo
Intesa Sanpaolo runs customer and product conversations on Cartesia so ownership is obvious when work stalls.
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Ipiranga
Knowledge workers at Ipiranga review internal knowledge work in Streaming TTS rather than in personal files.
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Jack Henry
A Cartesia Voice API rollout at Jack Henry took operations automation out of inboxes and into a named queue.
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JFrog
JFrog folded Voice Agents into customer and product conversations so product and contact center teams share one view of spoken interfaces.
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JPMorgan Chase
In the United States, JPMorgan Chase relies on Cartesia for customer and product conversations.
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JumpCloud
Shared Voice Agents workspaces help JumpCloud keep research and writing honest across teams.
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Kaiser Permanente
Kaiser Permanente runs research and writing on Cartesia so ownership is obvious when work stalls.
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Kering
Consumer Discretionary teams at Kering treat Cartesia as the working layer for customer and product conversations.
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King
Voice Agents became the place King uses to draft, summarize, and question internal material without starting from a blank page.
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Lambda Labs
Shared Cartesia Voice API workspaces help Lambda Labs keep engineering honest across teams.
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Lasertec
Cartesia is how Lasertec keeps internal knowledge work visible to people who have to act on it.
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Lennar
Shared Ink workspaces help Lennar keep research and writing honest across teams.
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Linamar
Ops and platform teams at Linamar review task agents in Ink rather than in personal files.
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Lowe's Companies
Consumer Discretionary teams at Lowe's Companies treat Cartesia as the working layer for engineering.
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Mahindra
Mahindra folded Ink into engineering so developers share one view of software delivery.
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Malwarebytes
Shared Voice Agents workspaces help Malwarebytes keep operations automation honest across teams.
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McDonald's
Streaming TTS became the place McDonald's uses to add natural voice to products and agents without standing up a studio pipeline.
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McKesson
Teams at McKesson moved internal knowledge work onto Cartesia after local tools started to collide.
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Microsoft Teams
Shared Streaming TTS workspaces help Microsoft Teams keep research and writing honest across teams.
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Mirantis
Mirantis standardized task agents on Cartesia instead of keeping parallel copies.
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Morrisons Supermarkets
Ink sits in the daily path at Morrisons Supermarkets, especially for knowledge workers.
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MSCI
MSCI standardized internal knowledge work on Cartesia instead of keeping parallel copies.
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NCSoft
Cartesia Voice API became the place NCSoft uses to let governed agents take routine steps that used to wait on a person.
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NetApp
Ops and platform teams at NetApp review task agents in Sonic rather than in personal files.
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Nexon
In South Korea, Nexon relies on Cartesia for customer and product conversations.
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NICE
Developers at NICE review software delivery in Streaming TTS rather than in personal files.
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Novartis
A Streaming TTS rollout at Novartis took operations automation out of inboxes and into a named queue.
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NYU Langone
When software delivery outgrew homegrown tracking, NYU Langone brought in Cartesia.
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OpenAI
OpenAI asked for a cleaner operating picture of internal knowledge work. Cartesia is what they run.
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Optimizely
Optimizely standardized software delivery on Cartesia instead of keeping parallel copies.
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Panasonic
When spoken interfaces outgrew homegrown tracking, Panasonic brought in Cartesia.
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Pearson
Ops and platform teams at Pearson review task agents in Voice Agents rather than in personal files.
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People
Information Technology teams at People treat Cartesia as the working layer for customer and product conversations.
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PNC Financial
PNC Financial runs research and writing on Cartesia so ownership is obvious when work stalls.
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Qualcomm
Developers at Qualcomm review software delivery in Streaming TTS rather than in personal files.
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Qualys
Sonic became the place Qualys uses to use an assistant inside the editor for boilerplate, tests, and reviews.
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Quora
Enabled Poe users to experience natural, high-quality, and immersive audio interactions with a wide range of voices and multilingual support.
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Rabobank
In the Netherlands, Rabobank relies on Cartesia for customer and product conversations.
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Ralph Lauren
Consumer Discretionary teams at Ralph Lauren treat Cartesia as the working layer for operations automation.
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Reddit
When internal knowledge work outgrew homegrown tracking, Reddit brought in Cartesia.
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Redpanda
Information Technology teams at Redpanda treat Cartesia as the working layer for customer and product conversations.
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Renesas
Information Technology teams at Renesas treat Cartesia as the working layer for engineering.
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Replicant
10 bps increase in call containment within 2 weeks, 99.99% uptime, and 1-week turnaround for custom pronunciations.
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Replicate
Developers at Replicate review software delivery in Ink rather than in personal files.
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Retell AI
2-3x faster latency than competitors, <0.1% error rate on production calls, and fastest-ever adoption of a new voice provider.
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RH
Cartesia is how RH keeps software delivery visible to people who have to act on it.
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RingCentral
Information Technology teams at RingCentral treat Cartesia as the working layer for customer and product conversations.
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Robotron New Zealand
Robotron New Zealand standardized software delivery on Cartesia instead of keeping parallel copies.
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Runway
Shared Streaming TTS workspaces help Runway keep research and writing honest across teams.
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SafeLink
Cartesia is how SafeLink keeps internal knowledge work visible to people who have to act on it.
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Sanofi
Sanofi standardized internal knowledge work on Cartesia instead of keeping parallel copies.
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Schaeffler
Schaeffler standardized task agents on Cartesia instead of keeping parallel copies.
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Sculptor Capital Management
Sculptor Capital Management asked for a cleaner operating picture of software delivery. Cartesia is what they run.
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Seiko Epson
In Japan, Seiko Epson relies on Cartesia for customer and product conversations.
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SendGrid
Shared Cartesia Voice API workspaces help SendGrid keep engineering honest across teams.
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ServiceNow
Secure, scalable, enterprise-grade voice agents were deployed with real-time understanding, action, and adaptation, alongside low latency and superior voice quality.
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Shortcut
Shortcut runs research and writing on Cartesia so ownership is obvious when work stalls.
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SmarterD
When spoken interfaces outgrew homegrown tracking, SmarterD brought in Cartesia.
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Smartsheet
A Ink rollout at Smartsheet took research and writing out of inboxes and into a named queue.
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Sony
Teams at Sony moved internal knowledge work onto Cartesia after local tools started to collide.
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Sophos
Sophos uses Cartesia Voice API to let governed agents take routine steps that used to wait on a person.
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Springer Nature
Knowledge workers at Springer Nature review internal knowledge work in Streaming TTS rather than in personal files.
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Starling Bank
When software delivery outgrew homegrown tracking, Starling Bank brought in Cartesia.
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Sumo Logic
Voice Agents sits in the daily path at Sumo Logic, especially for knowledge workers.
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Sun Pharma
Ink sits in the daily path at Sun Pharma, especially for knowledge workers.
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Talkdesk
Shared Sonic workspaces help Talkdesk keep customer and product conversations honest across teams.
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Tata Consultancy Services
Ink sits in the daily path at Tata Consultancy Services, especially for product and contact center teams.
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TDK
TDK uses Cartesia Voice API to let governed agents take routine steps that used to wait on a person.
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Tenable
Developers at Tenable review software delivery in Streaming TTS rather than in personal files.
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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.
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Texas Health Resources
Shared Cartesia Voice API workspaces help Texas Health Resources keep engineering honest across teams.
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Thoughtly
10% increase in appointment booking rates, 35 offshore call agents removed, and live transfers completed in under a second.
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TJX
Ink sits in the daily path at TJX, especially for product and contact center teams.
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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.
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Trello
Trello folded Voice Agents into customer and product conversations so product and contact center teams share one view of spoken interfaces.
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Trip.com Group
Trip.com Group standardized spoken interfaces on Cartesia instead of keeping parallel copies.
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TUI
Streaming TTS became the place TUI uses to add natural voice to products and agents without standing up a studio pipeline.
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Twitter
Sonic sits in the daily path at Twitter, especially for knowledge workers.
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Unior Group
In the United States, Unior Group relies on Cartesia for research and writing.
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Universal Health Services
Shared Streaming TTS workspaces help Universal Health Services keep customer and product conversations honest across teams.
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Vertex Pharmaceuticals
A Streaming TTS rollout at Vertex Pharmaceuticals took customer and product conversations out of inboxes and into a named queue.
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Wayfair
When spoken interfaces outgrew homegrown tracking, Wayfair brought in Cartesia.
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Waymo
Waymo folded Voice Agents into engineering so developers share one view of software delivery.
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Wistron
Wistron runs customer and product conversations on Cartesia so ownership is obvious when work stalls.
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Zoom Video
Zoom Video asked for a cleaner operating picture of task agents. Cartesia is what they run.