Cartesia

Private

San Francisco-based real-time voice AI startup. Trains Sonic state-space model foundation models for streaming speech synthesis with sub-100ms latency. Powers voice agents at Cognigy, Speechly, and 400+ deployment customers. Founded 2023 by co-authors of the Mamba architecture paper.

Founders Karan Goel, Albert Gu

CEO Karan Goel

Company

Founded

2023

Headquarters

San Francisco, United States

Financials

Total Funding

$191M

Sectors

Artificial Intelligence SaaS Developer Tools

cartesia.ai

Funding History

3 rounds

Series B Jul 9, 2026

$100M

Kleiner Perkins (Lead) Index Ventures Lightspeed Venture Partners Samsung Next NVIDIA OpenAI Startup Fund Elad Gil

Series A Feb 18, 2025

$64M

Kleiner Perkins (Lead) Index Ventures A Capital Conviction Partners Lightspeed Venture Partners Samsung Next

Seed Mar 14, 2024

$27M

Index Ventures (Lead) A Capital Conviction Partners Factory VC SV Angel

Funding data is compiled from multiple independent sources including company announcements, press coverage, and regulatory filings. While we strive for accuracy, amounts and dates may reflect reported figures at time of announcement.