Hello vs Vapi

Vapi is the most capable voice AI toolkit. Hello is the finished product.

Vapi provides APIs, SDKs, and function calling for engineering teams. Hello is a done-for-you Hello Voice deployment purpose-built for healthcare. One offers capability. The other offers a working system with HIPAA infrastructure, native revenue capture, and 99.99% uptime. Live in 10 days.

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Quick Verdict
Product
Finished Hello Voice deployment. Production-ready.
Voice AI toolkit. Engineers assemble.
Healthcare
Purpose-built. HIPAA. BAA included.
General-purpose. HIPAA add-on (enterprise only).
Revenue
Native deposit + balance collection via Stripe/Square
No payment capabilities. Custom build required.
Uptime
99.99% SLA. Multi-provider voice failover.
Multiple LLMs, but single telephony provider.
Live In
10 days (done-for-you)
Months (depends on engineering capacity)
Hello is built for practice owners, not developer teams
The Real Question

Capability and Readiness Are Not the Same Thing.

Vapi is arguably the most technically sophisticated voice AI platform available to developers. It offers APIs, SDKs, function calling, multi-LLM orchestration, and a dashboard for monitoring call flows. For an engineering team building a custom voice product across any industry, Vapi provides an impressive set of building blocks. That is the point. They are building blocks.

For a healthcare practice, the question is not whether Vapi could theoretically power your phone system. It could. The question is whether your practice has the engineering resources to build a HIPAA-compliant voice agent, integrate it with your EHR/PMS, add a payment processing workflow, configure bilingual call routing, handle VIP patient detection, build outbound reactivation campaigns, and then maintain the entire system indefinitely. The answer for 99% of medical practices is no.

The compliance nuance matters here. Vapi does offer a HIPAA-compliant plan as an enterprise add-on. But "HIPAA-compliant plan available" and "HIPAA infrastructure with BAA executed before any PHI is processed" are fundamentally different statements. With Vapi, configuring compliance correctly is your engineering team's responsibility. With Hello, the compliance layer is built in from day one: strong encryption in transit and at rest, with post-quantum-ready key management, tenant isolation, and a Business Associate Agreement executed with every healthcare client as a prerequisite, not an upgrade.

Then there is the function calling gap. Vapi's function calling is powerful. You could, in theory, build a custom Stripe integration to collect deposits during calls. But "could build" is not "does collect." Hello agents collect deposits and outstanding balances during the call itself, with consent workflows, PCI handling, and receipt delivery already built. A $12,000 rhinoplasty consultation booked at 7 PM with a $500 deposit captured is committed revenue before your office opens. That is not a theoretical capability. It is a revenue event that happens today. Vapi gives you the tools to build that workflow. Hello gives you the workflow.

Head-to-Head

Hello vs Vapi: Feature Comparison

A detailed look at the capabilities healthcare practices need most.

Capability Hello Vapi
Built for Healthcare Yes - purpose-built for medical practices No - general-purpose voice API platform
HIPAA Infrastructure Yes - strong encryption, tenant isolation, BAA Add-on - HIPAA plan available, config is your responsibility
Business Associate Agreement Yes - executed with every client Add-on - ~$1K/mo HIPAA mode
Runtime Compliance Scanning Yes - Mercury scans every interaction No - HIPAA mode is config, not runtime enforcement
Encrypted Retention (6+ years) Yes - Mercury provides HIPAA-grade audit trails Configurable - short retention periods
Native Revenue Capture Yes - deposits + balances via Stripe/Square No - requires custom function calling build
EHR/PMS Integrations Yes 37 EHR/PMS connectors; 200 integrations (e.g. Dentrix, Nextech, ModMed) No - build your own via function calling
Multi-Provider Voice Failover Yes - 99.99% uptime SLA, 3+ providers Partial - multiple LLMs, single telephony
Implementation Model Done-for-you - full build, config, optimization Developer-first (your team builds it)
Developer Resources Required None - Hello handles everything Yes - requires engineering team
Bilingual (English + Spanish) Yes - native fluency Partial - multi-language via LLM config
Outbound Campaigns Yes - patient recall, reactivation Possible - requires custom development
VIP Patient Routing Yes - auto-detect + human transfer No - build your own routing logic
Ongoing Optimization Yes - 7-90 day optimization period Self-managed
Dedicated Account Manager Yes (Command tier) No
Target User Healthcare practice owners and managers Software developers, engineering teams
Pricing Model Implementation-based ($7,500 - $20,000+) Usage-based API pricing (per minute)
Why Healthcare Practices Choose Hello

The Gap Between "Could Build" and "Already Works"

Vapi gives you the best tools in voice AI. Hello gives you the finished system. For a practice owner, the difference is months and engineers.

Revenue Captured, Not Theoretically Possible

Vapi's function calling means you could build a payment workflow. Hello already has one: deposits, consultation fees, and outstanding balances collected during the call via Stripe and Square. Consent, PCI handling, confirmation, and receipt delivery are built in. A $500 deposit on a $12,000 consultation captured at 7 PM is committed revenue before your staff arrives the next morning.

HIPAA Compliance as a Prerequisite, Not an Upgrade

Vapi's HIPAA plan is an enterprise add-on that your team must configure correctly. Hello's compliance is foundational: strong encryption in transit and at rest, with post-quantum-ready key management, tenant isolation, and a Business Associate Agreement executed with every healthcare client before any protected health information touches the system. No configuration guesswork. No compliance risk.

Additional Hello Capabilities

99.99% Uptime, Multi-Provider Voice Failover

3+ voice providers with sub-second automatic failover. Vapi supports multiple LLMs but uses single telephony. See reliability.

Done-for-You in 10 Days

Hello builds, configures, tests, and launches your Hello Voice deployment. Zero developer resources. Zero function calling configuration. Zero ongoing maintenance.

Bilingual Coverage (English + Spanish)

Native Spanish voice AI for bilingual patient populations. Not a language parameter passed to an LLM. How bilingual AI receptionist works.

VIP Patient Routing

Surgical patients and high-value callers identified and routed to the right team member instantly. With Vapi, you build this routing logic from scratch.

Outbound Reactivation Campaigns

Proactively reach overdue patients. 2 automated campaigns per month on Intercept. See outbound.

Healthcare EHR/PMS Integrations

37 EHR/PMS connectors and 200 integrations, including Dentrix, Nextech, and ModMed. Productized directory depth, not custom function-calling projects. View integrations.

FAQ

Hello vs Vapi: common questions. Everything healthcare practices need to know before choosing between Hello and Vapi.

Vapi is a developer-first voice AI platform that provides APIs, SDKs, and function calling for building custom voice agents. You need an engineering team to build the agent, create integrations, handle compliance, and maintain the solution. Hello is an enterprise-grade, done-for-you healthcare AI voice infrastructure built for healthcare practices. Hello includes native revenue capture, HIPAA infrastructure with BAA, multi-provider failover for 99.99% uptime, and full implementation by the Hello team.
Vapi offers a HIPAA-compliant plan as an enterprise add-on, but configuring compliance correctly is your engineering team's responsibility. Hello is built from the ground up as a HIPAA platform with strong encryption in transit and at rest, with post-quantum-ready key management, tenant isolation, and a Business Associate Agreement (BAA) executed with every healthcare client before any PHI is processed. Learn about Hello security.
Vapi does not include native payment collection. You could build a custom function calling integration, but you would need to handle PCI compliance, consent workflows, receipt delivery, and payment provider integration yourself. Hello includes native revenue capture out of the box via Stripe and Square.
Yes, Vapi is explicitly a developer-first platform. You need engineers to build voice agents, create function calling integrations, handle compliance configuration, and maintain the system. Hello is a done-for-you platform where the Hello team handles all implementation, configuration, EHR/PMS integration, and ongoing optimization. No developer resources required. Live in 10 days.
Vapi charges per-minute API usage, which appears lower upfront. However, total cost of ownership includes engineering salaries, time to build healthcare integrations, compliance configuration costs, ongoing maintenance, and the opportunity cost of months without a live system. Hello's implementation-based pricing ($7,500 - $20,000+) includes a production-ready, HIPAA Hello Voice deployment with healthcare integrations, revenue capture, and ongoing optimization. Most practices see 300-500% ROI in the first year. View Hello pricing.
Yes. Hello's done-for-you implementation team builds your new Hello Voice deployment from scratch. If you have existing prompts, call flows, or knowledge base content from a Vapi-based system, the team can incorporate that into your Hello implementation. The process typically takes 10 days. Request an AI audit to discuss migration.