Regal vs Vapi
A side-by-side comparison of Regal and Vapi, two Voice tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
At a glance
| Attribute | Regal | Vapi |
|---|---|---|
| Category | Voice | Voice |
| Pricing (differs) | PAID | FREEMIUM |
| License | Proprietary | Proprietary |
| Deployment | Cloud | Cloud |
| Platforms (differs) | Web, API | API, Web |
| Model support (differs) | Single model (proprietary) | Multi-model |
| Vendor (differs) | Regal | Vapi |
| Capabilities (differs) |
|
|
The honest brief
Regal
Tuned for high-volume contact-center calling — its agents draw on millions of prior calls, and Copilot ships a working voice agent in about a day.
- Phone, SMS, chat, and WebRTC in one platform
- Agents improve from past call data
- Copilot shortens build time to ~a day
- Proven at contact-center call volume
- No public free tier — demo/sales-led
- Enterprise focus; heavier setup than DIY APIs
- Pricing not published
Vapi
Solves the hard parts of phone agents — telephony, low-latency turn-taking and barge-in — while leaving STT/LLM/TTS fully pluggable.
- Telephony and interrupts handled
- Pluggable STT + LLM + TTS stack
- Fast to a working phone agent
- Generous developer free tier
- Per-minute costs stack across layers
- Latency depends on chosen models
- Complex configuration surface
- Cloud-only orchestration
When to pick which
Both cover Voice agent.
Pick Regal if you need Trigger-action automation, Multi-agent orchestration, and Conversation intelligence.
- Trigger-action automation (secondary capability)
- Multi-agent orchestration (secondary capability)
- Conversation intelligence (primary capability)
Pick Vapi if you need Tool / function calling and Multi-model access.
- Tool / function calling (secondary capability)
- Multi-model access (secondary capability)
They also differ on:
- Pricing
- PAID · FREEMIUM
- Model support
- Single model (proprietary) · Multi-model