Skip to content

PolyAI vs Retell AI

A side-by-side comparison of PolyAI and Retell AI, two Voice tools, drawn from Ignaite's continuously-verified listings.

Compared from listings verified as of

PolyAI

Voice

Lifelike enterprise voice AI agents for customer service calls.

View PolyAI

Retell AI

Voice

Build, test, and deploy AI voice agents for phone calls.

View Retell AI

At a glance

Feature comparison of PolyAI and Retell AI
AttributePolyAIRetell AI
CategoryVoiceVoice
Pricing (differs)PAIDFREEMIUM
LicenseProprietaryProprietary
DeploymentCloudCloud
PlatformsWeb, APIWeb, API
Model support (differs)Self-contained (on-device)Multi-model
Vendor (differs)PolyAIRetell AI

The honest brief

PolyAI

An end-to-end managed contact-center agent on its own Raven model — not a developer toolkit you assemble from telephony, LLM, and TTS parts.

  • Handles complex multi-turn calls
  • Enterprise compliance built in
  • No-code studio plus developer ADK
  • 2,000+ live deployments, 45 languages
  • Custom enterprise contracts only
  • No self-serve or SMB tier
  • No public pricing

Retell AI

Bring your own LLM behind the voice agent, so it isn't locked to a single model like most all-in-one voice platforms.

  • Inbound and outbound call handling
  • SIP/Twilio telephony built in
  • Low-latency turn-taking model
  • No-code builder plus API
  • Per-minute costs stack with LLM/TTS
  • Voice quality depends on chosen vendors
  • Cloud-only, no self-host