# Cartesia vs LiveKit: who uses which

On usedby, 39 companies use Cartesia and 32 use LiveKit. 5 companies use both, including Cresta, Assort Health and Hello Patient. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side. Latest check 2026-10-08: 71 of 71 public lines checked.

## Side by side

|  | [Cartesia](https://www.usedby.ai/tools/cartesia.md) | [LiveKit](https://www.usedby.ai/tools/livekit.md) |
|---|---|---|
| Public customers | 39 | 32 |
| Confirmed | 36 | 9 |
| Observed | 3 | 23 |
| Signals (job posts) | 0 | 0 |
| Top industries of customers | Artificial Intelligence (4), DevTools & Infrastructure (2), Sales Tech & CRM (2) | Artificial Intelligence (5), Aerospace & Defense (2), HealthTech & Digital Health (2) |
| Category | Speech & Audio API | Speech & Audio API |
| Security | PCI DSS, HIPAA, SOC 2 Type II ([trust.cartesia.ai](https://trust.cartesia.ai/), checked 2026-10-08) | SOC 2 Type II ([livekit.com](https://livekit.com/security), checked 2026-10-08) |
| Data processing terms | A data processing agreement is available. ([cartesia.ai](https://www.cartesia.ai/legal/dpa), checked 2026-10-08) | A data processing agreement is available. ([livekit.com](https://livekit.com/security), checked 2026-10-08) |
| Free trial | Free trial or free plan available. ([cartesia.ai](https://www.cartesia.ai/pricing), checked 2026-10-08) | Free trial or free plan available. ([livekit.com](https://livekit.com/pricing), checked 2026-10-08) |
| Pricing | Free: $0 /mo; Pro: $5 /mo; Startup: $49 /mo; Scale: $299 /mo; Enterprise: contact sales ([cartesia.ai](https://www.cartesia.ai/pricing), checked 2026-10-08) | Build: $0 /mo; Ship: from $50 /mo; Scale: from $500 /mo; Enterprise: contact sales ([livekit.com](https://livekit.com/pricing), checked 2026-10-08) |
| Your data | — | Not used to train models by default. ([livekit.com](https://livekit.com/legal/privacy-policy), checked 2026-10-08) |

## Companies named on both

Confirmed or observed on each side.

| Company |
|---|
| [Cresta](https://www.usedby.ai/companies/cresta.md) |
| [Assort Health](https://www.usedby.ai/companies/assort-health.md) |
| [Hello Patient](https://www.usedby.ai/companies/hello-patient.md) |
| [Telli](https://www.usedby.ai/companies/telli.md) |
| [Decagon](https://www.usedby.ai/companies/decagon.md) |

## Published results

Reviewed stories only; usedby did not measure the figures.

- Cartesia: [Daily](https://www.usedby.ai/case-studies/daily-cartesia.md): **500ms**: “Daily Bots delivers voice-to-voice latencies – including transport over the network – as fast as 500ms.” (published 2024-09-24)
- Cartesia: [Goodcall](https://www.usedby.ai/case-studies/goodcall-cartesia.md): **90 ms**: “Goodcall achieves a 90 ms on average for time-to-first-audio” (published 2024-10-09)
- LiveKit: [Assort Health](https://www.usedby.ai/case-studies/assort-health-livekit.md): **90%**: “Assort Health's customers can use AI to handle 90% of inbound calls” (published 2025-06-01)
- LiveKit: [Playback](https://www.usedby.ai/case-studies/playback-livekit.md): story without a checked figure. (published 2024-08-01)

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Source: https://www.usedby.ai/compare/cartesia-vs-livekit · How we check: https://www.usedby.ai/methodology