# Cartesia AI

**Source:** https://www.startuphub.ai/startups/cortesia
**Profile type:** Startup

> Cartesia AI builds real-time voice AI agents and models, enabling human-like voice interactions for various applications.

## About

Cartesia AI is a San Francisco-based startup that develops real-time generative AI models specifically for voice AI. Their flagship product, Sonic, is a voice model that generates expressive, lifelike speech with ultra-low latency, designed to improve the responsiveness of voice interactions. The company's technology is used to power voice agents across various sectors, including customer support, sales, and digital avatars.

## Key facts

- **Slug:** cortesia
- **Website:** https://cartesia.ai
- **Founded:** 2026-08-11
- **Employees:** 149
- **Operating status:** Active
- **Sectors / tags:** Voice AI, Voice Agent, Conversational AI, Realtime Voice, Agentic AI, AI Agent, Speech Synthesis, Text-to-Speech, Voice Cloning, API Platform, Foundation Model, Generative AI, State Space Model
- **Social:**
  - LinkedIn: https://www.linkedin.com/company/cartesia-ai
  - Twitter: https://x.com/cartesia
  - GitHub: https://github.com/cartesia-ai

## Frequently asked

### What does Cartesia AI do?

Cartesia AI is a San Francisco-based startup that develops real-time generative AI models specifically for voice AI. Their flagship product, Sonic, is a voice model that generates expressive, lifelike speech with ultra-low latency, designed to improve the responsiveness of voice interactions. The company's technology is used to power voice agents across various sectors, including customer support, sales, and digital avatars.

### What is Cartesia AI's Effective Domain Rating?

StartupHub's Effective Domain Rating for Cartesia AI is 87 out of 100, measuring real cross-surface visibility in search engines and AI answers rather than claimed link authority. That is underrated against its Ahrefs Domain Rating of 74, meaning it surfaces in search and AI results more than its claimed authority alone would suggest.

### Is Cartesia AI trustworthy and reputable?

StartupHub's Data Trust & Reputation score for Cartesia AI is 60 out of 100, based on site security posture and privacy practices.

### What is Cartesia AI's revenue?

StartupHub estimates Cartesia AI's annual revenue at $21.3M (range $13.8M to $110.7M, 62% confidence), based on comparable companies in the sector.

### When was Cartesia AI founded?

Cartesia AI was founded in 2026.

### What industry does Cartesia AI operate in?

Cartesia AI operates in Voice AI, Voice Agent, Conversational AI, Realtime Voice, Agentic AI, AI Agent.

### How many employees does Cartesia AI have?

Cartesia AI has approximately 149 people on record.

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