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
At a glance
| Attribute | PolyAI | Retell AI |
|---|---|---|
| Category | Voice | Voice |
| Pricing (differs) | PAID | FREEMIUM |
| License | Proprietary | Proprietary |
| Deployment | Cloud | Cloud |
| Platforms | Web, API | Web, API |
| Model support (differs) | Self-contained (on-device) | Multi-model |
| Vendor (differs) | PolyAI | Retell AI |
| Capabilities (differs) |
|
|
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
When to pick which
Both cover Voice agent and AI app builder.
Pick PolyAI if you need Ticket deflection and Conversation intelligence.
- Ticket deflection (primary capability)
- Conversation intelligence (secondary capability)
Pick Retell AI if you need Tool / function calling.
- Tool / function calling (secondary capability)
Retell AI leans on AI app builder as a headline capability; PolyAI treats it as secondary.
- AI app builder (primary capability)
They also differ on:
- Pricing
- PAID · FREEMIUM
- Model support
- Self-contained (on-device) · Multi-model