Regal vs Vapi
A side-by-side comparison of capabilities, autonomy, integrations, and pricing to help you choose.
Short answer: choose Regal if you want ai phone agents for enterprise inbound and outbound contact centers (Autonomous agent, enterprise); choose Vapi if you want developer platform for voice ai agents that handle phone calls (Supervised agent, usage).
| Regal | Vapi | |
|---|---|---|
| What it is | AI phone agents for enterprise inbound and outbound contact centers | Developer platform for voice AI agents that handle phone calls |
| Type | agent | platform |
| Autonomy | Autonomous agent | Supervised agent |
| Pricing | enterprise | usage · $0.05/min platform fee + model costs at cost |
| Best for | mid-market, enterprise | developers, smb, mid-market, enterprise |
| Deployment | saas, api | saas, api |
| Modalities | voice, text, email | voice, text, api |
| Models | model-agnostic | model-agnostic, gpt, claude, gemini |
| Protocols | rest-api | rest-api, function-calling, mcp |
| Integrations | Salesforce, HubSpot, Twilio, Segment, Snowflake | Twilio, Deepgram, ElevenLabs, OpenAI, Anthropic, Google |
| Capabilities | 4 documented | 4 documented |
Regal
- +Handles inbound and outbound at enterprise scale, blending AI and human agents
- +Omnichannel journey orchestration with drag-and-drop builders and branded caller ID
- +Built-in A/B testing and reporting
- -Enterprise-oriented with no public pricing
- -Containment and CSAT figures are vendor-reported
Vapi
- +Deep modularity and control: swap any STT/LLM/TTS provider, bring your own keys and models, fine-tune thousands of config points
- +Low latency at scale with enterprise reliability features (model fallbacks, SOC 2/HIPAA/PCI), validated by large production deployments
- +Transparent usage pricing with at-cost model pass-through and a low platform fee, plus open-source SDKs and a CLI
- -Complexity and steep setup; the no-code builder is limited and non-engineering teams face significant manual configuration
- -Costs can stack unpredictably: the per-minute fee is on top of separately billed provider costs and add-ons
Which should you choose?
Regal is ai phone agents for enterprise inbound and outbound contact centers, best for mid-market, enterprise. Vapi is developer platform for voice ai agents that handle phone calls, best for developers, smb, mid-market, enterprise. The right choice depends on the autonomy level you want, your existing integrations, and your budget, all compared above.