
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)
| Company |
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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).”
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 We’re looking for a Technical Recruiter to help us grow our team of engineers and researchers, and drive hiring end-to-end. You’ll own full-cycle hiring across technical roles — from sourcing and outreach to offer — and partner closely with hiring managers to deliver exceptional talent pipelines. This is a high-impact role where you’ll help shape the team and culture at one of the most exciting startups in AI.
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.