Comparison
Vapi vs Retell AI
Side-by-side look at two popular developer-first voice agent platforms for phone and realtime agents.
Editorial overview — not a paid ranking. Vendor claims should be verified on their sites.
Vapi
SponsoredDeveloper platform for building and deploying voice AI agents with telephony, STT/TTS, and orchestration.
| Type | platform |
|---|---|
| Pricing | Usage-based |
| Install | npm i @vapi-ai/server-sdk |
Retell AI
FeaturedVoice AI platform for phone agents with low-latency conversation and telephony integrations.
| Type | platform |
|---|---|
| Pricing | Usage-based |
| Install | — |