Regal vs Vapi (2026): which should you pick?

Pick Regal if

• Fits if you run a large contact centre with tens of thousands of call minutes a month
• Makes sense if you want phone and text agents tested before they go live

Look elsewhere if

• Not for you if you are small: the vendor itself suggests a floor of about 25 agents
• Skip it if you want a price on the page, as none is published
• Watch out: implementation goes through the vendor's engineering team
• Tight if you want to self-serve: there is no free plan or trial

Pick Vapi if

• Fits if you are a developer who wants to choose each voice and model provider
• Makes sense if you want to pay for minutes as you use them

Look elsewhere if

• Pricey if you want one price, as model, voice and call charges sit on top of the $0.05 hosting
• Watch out: HIPAA-eligible handling is a $2,000 a month add-on
• Pricey if you grow, since Pro has a $999 a month minimum
• Watch out: extra lines cost $10 each and extra organisations $20 each a month

Regal

• No prices are published; the vendor says price follows the features used and falls with higher spend and longer contracts.
• The vendor says Regal suits enterprises, with a rough floor of 25 agents and 25,000 call minutes a month.
• Implementation is done with the vendor's forward deployed engineering team.

Vapi

• Without a success package, hosting is $0.05 per minute, pre-paid, and Deepgram, model and voice costs are added on top; the page's 1,000-minute estimate is $82 to $129 a month.
• HIPAA-eligible data handling is a $2,000 per month add-on.
• Extra concurrent lines cost $10 per line per month and extra organizations $20 per organization per month.
• Twilio, Vonage and Telnyx call charges are billed by those providers, such as $0.008 per minute for Twilio inbound.

Regal

Phone, SMS, chat and WebRTC agents

The same agent can be deployed across voice calls, text messages, web chat and in-browser voice.

AI Agent Builder and Journey Builder

Drag-and-drop orchestration for the conversation and for the sequence of touches around it.

Simulations and A/B testing

Native A/B testing and simulations to refine agents before and after they go live.

Conversation intelligence

Live monitoring, automated quality assurance and analytics on every call.

Human and AI hand-off

Includes a unified agent desktop so human agents can take over from the AI agents.

Vapi

Voice agent orchestration

Configure voice, conversation flow, telephony and integrations for an agent, then deploy it behind a phone number or an API.

Choice of providers

The pricing calculator lets you pick the transcriber, language model and voice, for example Deepgram, OpenAI and ElevenLabs. Models are passed through at cost.

Testing and simulation

Calls can be simulated before they reach customers, and monitoring flags issues in live calls.

Telephony options

Vapi telephony and SIP, WebSockets and Daily WebRTC are listed as free transport; Twilio, Vonage and Telnyx are charged by those providers.

Enterprise controls

The site lists SSO, OAuth, RBAC and AI guardrails, and says SOC 2, HIPAA and PCI compliance are supported.

Regal

Pricing could not be confirmed. See regal.ai.

Vapi

• Core$29

  per month, pre-paid, auto-renew

  2 organizations, 5 included phone numbers, 10 concurrent calls, 30 days of raw data retention and email support.

• Pro$999

  per month minimum, 10% of the hosting fee

  10 organizations, 30 concurrent calls, 180 days retention, RBAC, a dedicated Slack channel and a 99% uptime SLA.

• PremierCustom

  Direct sales only: higher limits, named support team, 99.9% uptime SLA, SSO and dedicated SIP.