Cartesia vs LiveKit: who uses which
Customers, public proof and the companies that use both.
On usedby, 39 companies use Cartesia and 32 use LiveKit. 5 companies use both, including Cresta, Assort Health, and Hello Patient. LiveKit leads among the Artificial Intelligence companies on usedby that use either tool.Latest check Oct 8, 2026: 71 of 71 public lines checked. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side.
Who uses Cartesia, LiveKit, or both
Every company with a public proof for at least one of the two tools.
34
use only Cartesia
5
companies use both
27
use only LiveKit
34 companies use only Cartesia, 27 use only LiveKit and 5 use both, out of the 66 companies on usedby that use at least one of them.
Where it lands
Newest customers
No new customer since tracking started on October 8, 2026.
Where it lands
Newest customers
No new customer since tracking started on October 8, 2026.
Who uses both
Companies with a confirmed or observed line on both tools.
| Company |
|---|
 Cresta |
 Assort Health |
 Hello Patient |
 Telli |
 Decagon |
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Cartesia
LiveKitWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Cartesia
Daily Bots delivers voice-to-voice latencies – including transport over the network – as fast as 500ms.
Daily
Vendor case study, cartesia.ai, published Sep 24, 2024
Goodcall achieves a 90 ms on average for time-to-first-audio
Goodcall
Vendor case study, cartesia.ai, published Oct 9, 2024
LiveKit
Assort Health's customers can use AI to handle 90% of inbound calls
Assort Health
Vendor case study, livekit.com, published Jun 1, 2025
How Playback uses LiveKit
Playback
Vendor case study, livekit.com, published Aug 1, 2024
Questions about Cartesia and LiveKit
Which is used more, Cartesia or LiveKit?
Cartesia has more customers on usedby: 39 against 32 for LiveKit.
Do companies use both Cartesia and LiveKit?
Yes. 5 companies use both on usedby, including Cresta, Assort Health, and Hello Patient.
Who uses Cartesia?
39 companies on usedby, each with the public page that shows it. See who uses Cartesia.
Who uses LiveKit?
32 companies on usedby, each with the public page that shows it. See who uses LiveKit.
How does usedby count customers?
A company counts when a public page shows it: a vendor's customer page, a case study, a press release or a job post, most saved with a dated capture. Every line is a customer, at one of three proof levels: confirmed, observed or signal (a job post, the weakest). A company is named as using both tools when its lines on both are confirmed or observed.