Comparison

PolyAI vs Vapi

On the evidence we track, Vapi leads this comparison with a composite score of 76/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

PolyAI full profile →Vapi full profile →

Machine formatsJSON Markdown GraphQLor send Accept: application/json

PolyAI47

★Vapi76

Attribute comparison across 2 tools
Attribute	PolyAI	VapiLeader
Vioscale score	47 / 100medium · 60%	76 / 100high · 75%
Pricing
Free tierpricing.free_tier	✗	✗
Modelpricing.model	commercial	commercial
Price levelpricing.price_level	unknown	low
Starting pricepricing.starting_price	-	$10
Transparentpricing.transparent	✗	✓
Integrations
Countintegrations.count	1	14
Security
Gdprsecurity.gdpr	✓	-
Hipaasecurity.hipaa	✓	✓
Iso27001security.iso27001	✓	-
Pcisecurity.pci	✓	✓
Soc2security.soc2	✓	✓
Reliability
Sla pctreliability.sla_pct	99.9	99.9
Status pagereliability.status_page	-	✓
Market
Availabilitymarket.availability	Available worldwide · Popular in GB, US, EU · HQ GB	Available worldwide · Popular in US

Score

Vioscale score

PolyAI47 / 100medium · 60%

Vapi76 / 100high · 75%

Pricing

Free tier

PolyAI✗

Vapi✗

Model

PolyAIcommercial

Vapicommercial

Price level

PolyAIunknown

Vapilow

Starting price

PolyAI–

Vapi$10

Transparent

PolyAI✗

Vapi✓

Integrations

Count

PolyAI1

Vapi14

Security

Gdpr

PolyAI✓

Vapi–

Hipaa

PolyAI✓

Vapi✓

Iso27001

PolyAI✓

Vapi–

Pci

PolyAI✓

Vapi✓

Soc2

PolyAI✓

Vapi✓

Reliability

Sla pct

PolyAI99.9

Vapi99.9

Status page

PolyAI–

Vapi✓

Market

Availability

PolyAIAvailable worldwide · Popular in GB, US, EU · HQ GB

VapiAvailable worldwide · Popular in US

Capabilities

Feature-by-feature on the axes that matter for voice ai agents. “-” means undocumented, not absent.

Capability comparison for Voice AI Agents
Capability	PolyAI	Vapi
Capabilities
Deployment model	No code saas platform	Developer API endpoint
Sub second latency and interruption barget in handling	✓	✓
Dynamic mid call API function execution	✓	✓
Live human handoff and call transfer logic	✓	✓
Emotion prosody and custom voice cloning	✓	✓
Inbound reception and ivr routing replacement	✓	✓
Outbound dialing and campaign management	-	-
Post call transcription and CRM sync	✓	-
Voicemail detection and answering machine drops	-	✓
Twilio vonage bring your own carrier byoc support	-	✓
SOC2 type ii	✓	✓
HIPAA compliance for medical appointment setting	✓	✓
Pricing model	-	Per minute usage based

Capabilities

Deployment model

PolyAINo code saas platform

VapiDeveloper API endpoint

Sub second latency and interruption barget in handling

PolyAI✓

Vapi✓

Dynamic mid call API function execution

PolyAI✓

Vapi✓

Live human handoff and call transfer logic

PolyAI✓

Vapi✓

Emotion prosody and custom voice cloning

PolyAI✓

Vapi✓

Inbound reception and ivr routing replacement

PolyAI✓

Vapi✓

Outbound dialing and campaign management

PolyAI-

Vapi-

Post call transcription and CRM sync

PolyAI✓

Vapi-

Voicemail detection and answering machine drops

PolyAI-

Vapi✓

Twilio vonage bring your own carrier byoc support

PolyAI-

Vapi✓

SOC2 type ii

PolyAI✓

Vapi✓

HIPAA compliance for medical appointment setting

PolyAI✓

Vapi✓

Pricing model

PolyAI-

VapiPer minute usage based

What each one is

The product in its own terms, so the numbers below have context.

PolyAI

A cloud-based platform that enables organizations to build, deploy, and manage conversational voice AI agents for customer interactions. Provides both visual no-code builder and developer SDK options, with built-in compliance, security, and integration capabilities.

Independently observed

Vapi

Leader

A developer-focused platform for building, deploying, and managing AI-powered voice agents that handle customer interactions including support, callbacks, and notifications. Supports both API-first and UI-based workflows with enterprise-grade reliability and compliance.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

PolyAI

Usage-based

Per-minute usage pricing; custom quotes required

as of 2026-08-25verify ↗

Vapi

Leader

from $10/line/moHybrid

Usage-based pricing starting at $0.05/minute. Enterprise annual contracts with volume discounts available.

Build$0.05/minute for calls, $0.005 per message, $10/additional concurrent line/month
- Usage-based call minutes
- SMS/Chat messaging
- 10 call concurrency included
- Custom voices and model access
- Email and Discord community support
- +3 more
ScaleContact sales
- Fixed platform fee plus committed volume
- Volume-based per-minute pricing
- Enterprise-grade uptime SLA
- SOC2, HIPAA, PCI compliance
- SSO and OAuth2 integration
- +6 more

as of 2026-08-25verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	PolyAI	Vapi
WebPlatforms	✓	✓
iOSPlatforms	✗	✓
AndroidPlatforms	✗	✓
CLIPlatforms	✓	✗
Cloud / SaaSDeployment	✓	✓
Self-hostedDeployment	✓	✓
On-premiseDeployment	✓	✗
HybridDeployment	✗	✓

Platforms

Web

PolyAI✓

Vapi✓

iOS

PolyAI✗

Vapi✓

Android

PolyAI✗

Vapi✓

CLI

PolyAI✓

Vapi✗

Deployment

Cloud / SaaS

PolyAI✓

Vapi✓

Self-hosted

PolyAI✓

Vapi✓

On-premise

PolyAI✓

Vapi✗

Hybrid

PolyAI✗

Vapi✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

PolyAI

1 total

ModMed

Independently observed

Vapi

Leader

14 total

Twilio
Google Business Messages / RCS
OpenAI
Anthropic
Groq
Eleven Labs
Google Cloud
Azure
Custom LLM providers
Custom TTS providers
Custom STT providers
Webhook integrations
REST API
MCP (Model Context Protocol)

Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.