vioscaleAI
Comparison

PolyAI vs Vapi

On the evidence we track, Vapi leads this comparison with a composite score of 73/100. 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 formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
PolyAI62
★Vapi73
Score
vioscaleAI score
PolyAI62 / 100medium · 62%
Vapi73 / 100medium · 74%
Pricing
Free tier
PolyAI✗
Vapi✓
Model
Price level
PolyAIunknown
Vapimid
Starting price
PolyAI–
Vapi$29
Transparent
PolyAI✗
Vapi✓
Integrations
Count
PolyAI130
Vapi8
Security
Certifications
Gdpr
PolyAI✓
Vapi–
Hipaa
PolyAI✓
Vapi✓
Iso27001
PolyAI✓
Vapi–
Pci
PolyAI✓
Vapi✓
Soc2
PolyAI✓
Vapi✓
Trust center
Reliability
Sla pct
PolyAI99.9
Vapi99.9
Status page
PolyAI–
Vapi✓
Market
Availability
Content
Faq
PolyAI6 items
Vapi7 items

Capabilities

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

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
PolyAIPer minute usage based
VapiPer minute usage based

What each one is

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

PolyAI

An enterprise platform for designing, building, and running AI voice agents that handle customer conversations across multiple channels including voice, SMS, and chat, with pre-built integrations and low-latency dialog models.

Independently observed

Vapi

Leader

Managed platform enabling developers to build, deploy, and monitor voice agents without managing infrastructure. Provides conversation design tools, real-time integration with external data and APIs, and production monitoring.

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

Usage-based pricing per minute of voice agent usage

  • Usage-basedContact sales
    • 24/7 support with web ticket portal and emergency phone line
    • 99.9% SLA uptime guarantee
    • 24/7 data infrastructure with load balancing
    • Regular audits and third-party penetration testing
    • Latest system features and upgrades
    • +1 more
as of verify ↗

Vapi

Leader
from $29/moHybridFree tier

Free tier ($5 credits) plus per-minute call costs. Paid tiers from $29/month (Core) to custom (Premier).

  • FreeFree
    • $5 free credits
    • 2 organizations
    • 1 included Vapi phone number
    • 4 concurrent calls
    • 14 days data retention
    • +4 more
  • Core$29/month
    • 5 Vapi phone numbers
    • 10 concurrent calls
    • 30 days data retention
    • ZDR included
    • Email support
    • +1 more
  • Pro$999/month minimum
    • 10 organizations
    • 10 Vapi phone numbers
    • 30 concurrent calls
    • 180 days data retention
    • RBAC and ZDR
    • +3 more
  • PremierContact sales
    • Custom phone numbers, concurrency, and data retention
    • Priority support with named team
    • Agent Strategist and FDE advisor
    • 1 hour P0 response SLA
    • 99.9% uptime SLA
    • +2 more
as of verify ↗

Platform & deployment

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

Platforms
Web
PolyAI✓
Vapi✓
iOS
PolyAI✗
Vapi✓
CLI
PolyAI✓
Vapi✓
Deployment
Cloud / SaaS
PolyAI✓
Vapi✓

Integrations

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

In common (1)
  • Twilio

PolyAI

13 total - 12 not shared
  • ModMed
  • Epic
  • OpenTable
  • Stripe
  • GitHub
  • Amazon Web Services
  • Five9
  • NICE
  • Salesforce
  • Verizon Business
  • Zendesk
  • GoTo
Independently observed

Vapi

Leader
20 total - 19 not shared
  • 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)
  • Google Business Messages
  • Vonage
  • Telnyx
  • ElevenLabs
  • Deepgram
  • Slack
Independently observed
Still deciding?

PolyAI or Vapi: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

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