
Our mission is to build the next generation of AI: ubiquitous, interactive intelligence that runs wherever you are. Try Sonic at https://play.cartesia.ai and join our Discord at https://discord.com/invite/cartesia.

Our mission is to build the next generation of AI: ubiquitous, interactive intelligence that runs wherever you are. Try Sonic at https://play.cartesia.ai and join our Discord at https://discord.com/invite/cartesia.
Founded: 2023
Headquarters: San Francisco, United States
Employees: 87
Product focus: Real-time, multimodal developer APIs (text-to-speech 'Sonic', speech-to-text 'Ink')
Recent funding: $27M total raised (seed round Dec 2024 led by Index Ventures)
Real-time multimodal AI for conversational and voice-enabled applications.
2023
Artificial intelligence; developer platform / APIs
$27M (total raised; $22M closed in Dec 2024 reported for the round)
Dec 2024 round reported as $22M led by Index Ventures bringing total raised to $27M; company blog lists participation from Lightspeed, Factory, Conviction, General Catalyst, A*, SV Angel and ~90 angels.
Database entries list a Series A with Kleiner Perkins among lead investors.
“Participation from prominent VCs including Index Ventures, Lightspeed, Conviction, General Catalyst, A*, Kleiner Perkins and Greycroft (per reporting and company disclosures).”
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About Cartesia Our mission is to build the next generation of AI: ubiquitous, interactive intelligence that runs wherever you are. Today, not even the best models can continuously process and reason over a year-long stream of audio, video and text—1B text tokens, 10B audio tokens and 1T video tokens—let alone do this on-device.
We're pioneering the model architectures that will make this possible. Our founding team met as PhDs at the Stanford AI Lab, where we invented State Space Models or SSMs, a new primitive for training efficient, large-scale foundation models. Our team combines deep expertise in model innovation and systems engineering paired with a design-minded product engineering team to build and ship cutting edge models and experiences.
We're funded by leading investors at Index Ventures and Lightspeed Venture Partners, along with Factory, Conviction, A Star, General Catalyst, SV Angel, Databricks and others. We're fortunate to have the support of many amazing advisors, and 90+ angels across many industries, including the world's foremost experts in AI.
Role Responsibilities As a Technical Sourcer, you will be the engine for our growth as a leading foundation model company, responsible for identifying and engaging world-class technical talent. This is an incredibly hands-on role, where you’ll be expected to not only source, but to screen and manage candidates through the process, as well as lead on strategic hiring initiatives alongside Recruiting.
What You'll Do
What You'll Bring
Our perks 🍽 Lunch, dinner and snacks at the office.
🏥 Fully covered medical, dental, and vision insurance for employees.
🏦 401(k).
✈️ Relocation and immigration support.
🦖 Your own personal Yoshi.
Our Culture 🏢 We’re an in-person team based out of San Francisco. We love being in the office, hanging out together, and learning from each other every day.
🚢 We ship fast. All of our work is novel and cutting edge, and execution speed is paramount. We have a high bar, and we don’t sacrifice quality or design along the way.
🤝 We support each other. We have an open & inclusive culture that’s focused on giving everyone the resources they need to succeed.