Provisional comparison

Vapi vs Retell AI

Vapi is provisional S-tier and Retell AI is provisional A-tier on Voice Agents. Rankings are never for sale.

Vapi

Developer platform to build, test and deploy voice AI agents.

Platform for AI phone agents for inbound and outbound calls (HIPAA, SOC 2).

Field	Vapi	Retell AI
Tier	S · provisional	A · provisional
Why	Developer-favorite voice agent platform with flexible model choice.	Strong production phone-agent platform with transparent per-minute pricing.
Pricing	usage-based · starts at ~$0.04–0.09/min	usage-based · starts at $0.07–$0.31/min
Last verified	Oct 15, 2026	Oct 15, 2026