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Vapi vs Retell AI: catalog facts
Vapi	Retell AI
Paid Self-serve sign-up is available, and larger deployments go through sales.	Paid Commercial service with a published pricing page and a free trial.
Web	Web
Configures voice, conversation flow and telephony in one place API-native design suited to developers	Ready-made use cases such as receptionist, appointment setting and surveys Live demo call lets you hear an agent before signing up
Requires development work rather than being a ready-made assistant Hosted only, with no self-hosted option	Aimed at businesses running phone operations, not personal use Hosted service only, with no self-hosted option
Hosted service	Hosted service
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.