AI voice and audio companies · cartesia.ai
Cartesia valuation, funding and revenue
Cartesia sells real-time voice AI models through one API for speech generation (Sonic), transcription (Ink) and production voice agents, used by developers and enterprises building voice products.
Figures checked September 2026. Each one links to its source.
Latest valuation
Not disclosed
No public valuation found.
Revenue
est. $5M to $10M
Night Watcher model from website traffic, a year. Not a reported figure.
Website visits
900K
Estimated, August 2026. +16% on the month before.
What is Cartesia's valuation?
We found no public valuation for Cartesia. Private companies rarely publish one; it is usually disclosed with a funding round or reported by the press.
How much funding has Cartesia raised?
Cartesia has raised $91M in total, as of March 2025 (fortune.com). The latest round was a $64M Series A in March 2025, led by Kleiner Perkins.
| Date | Round | Amount | Led by | Valuation | Source |
|---|---|---|---|---|---|
| March 2025 | Series A | $64M | Kleiner Perkins | – | cartesia.ai |
| December 2024 | Seed | $27M | Index Ventures | – | cartesia.ai |
What is Cartesia's revenue?
Cartesia has not published revenue or ARR, and we found no reliable press report of it. Night Watcher's traffic-based model puts its run rate at an estimated $5M to $10M a year. The model assumes self-serve sign-ups from website visits, so it can badly understate a company that sells through a sales team. Treat it as a rough scale, not a revenue figure.
ARR (annual recurring revenue) is the yearly value of current subscriptions; annualized revenue scales a recent month or quarter up to a year. Neither is audited revenue. See what ARR is.
Cartesia website traffic
Estimated monthly visits to cartesia.ai across all channels, rounded. +134% over three months to August 2026.
- May 2026380K
- June 2026400K
- July 2026780K
- August 2026900K
Cartesia competitors
AI companies in the same category (AI voice and audio companies) with a similar amount of website traffic. Similar size and category do not mean identical products; check what each one sells.
Lara Translate
laratranslate.com · 1.2M visits a month
OpenMusic AI
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deepgram.com · 740K visits a month
Krisp
krisp.ai · 700K visits a month
Murf
murf.ai · 620K visits a month
About Cartesia
- Cartesia sells real-time voice AI models through one API for speech generation (Sonic), transcription (Ink) and production voice agents, used by developers and enterprises building voice products. cartesia.ai
- Founded in 2023. fortune.com
- Founders: Karan Goel, Albert Gu, Arjun Desai, Brandon Yang. fortune.com
- Fortune (March 2025): Cartesia emerged from Stanford's AI Lab in 2023, cofounded by Karan Goel, Arjun Desai, Brandon Yang and Albert Gu. Index Ventures also lists Stanford professor Chris Re among the founders. indexventures.com
- The $91M total is Fortune's figure as of the March 2025 Series A. A widely repeated $100M October 2025 round (Kleiner Perkins, Index, Lightspeed, NVIDIA, launched alongside Sonic-3) could not be confirmed in an allowed source and is omitted. fortune.com
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Sources
Checked on 29 September 2026. Traffic figures are third-party estimates, not company-reported numbers.