# Assembly AI vs LiveKit: who uses which

On usedby, 49 companies use Assembly AI and 32 use LiveKit. 1 company uses both, including HeyGen. 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: 79 of 81 public lines checked.

## Side by side

|  | [Assembly AI](https://www.usedby.ai/tools/assembly-ai.md) | [LiveKit](https://www.usedby.ai/tools/livekit.md) |
|---|---|---|
| Public customers | 49 | 32 |
| Confirmed | 22 | 9 |
| Observed | 27 | 23 |
| Signals (job posts) | 0 | 0 |
| Top industries of customers | Artificial Intelligence (12), Marketing Tech (6), Sales Tech & CRM (5) | Artificial Intelligence (5), Aerospace & Defense (2), HealthTech & Digital Health (2) |
| Category | Speech & Audio API | Speech & Audio API |
| Security | SOC 2 Type II ([assemblyai.com](https://www.assemblyai.com/security), checked 2026-10-04) | SOC 2 Type II ([livekit.com](https://livekit.com/security), checked 2026-10-08) |
| Data processing terms | A data processing agreement is available. ([assemblyai.com](https://www.assemblyai.com/legal/privacy-policy), checked 2026-10-04) | A data processing agreement is available. ([livekit.com](https://livekit.com/security), 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) |
| Free trial | — | Free trial or free plan available. ([livekit.com](https://livekit.com/pricing), checked 2026-10-08) |
| Pricing | — | Build: $0 /mo; Ship: from $50 /mo; Scale: from $500 /mo; Enterprise: contact sales ([livekit.com](https://livekit.com/pricing), checked 2026-10-08) |

## Companies named on both

Confirmed or observed on each side.

| Company |
|---|
| [HeyGen](https://www.usedby.ai/companies/heygen.md) |

## Published results

Reviewed stories only; usedby did not measure the figures.

- Assembly AI: [Aloware](https://www.usedby.ai/case-studies/aloware-assembly-ai.md): **50%**: “Aloware has seen 50% of its client base convert to its suite of AI-powered packages” (captured by usedby 2026-10-08)
- Assembly AI: [EchoAI](https://www.usedby.ai/case-studies/echo-ai-assembly-ai.md): **18 million calls**: “the 18 million calls it processes a year” (captured by usedby 2026-10-08)
- 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)

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