vioscaleAI
Comparison

Retell AI vs Smith.ai

On the evidence we track, Retell AI leads this comparison with a composite score of 79/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Retell AI full profile →Smith.ai full profile →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
★Retell AI79
Smith.ai57
Score
vioscaleAI score
Retell AI79 / 100medium · 72%
Smith.ai57 / 100low · 17%
Pricing
Free tier
Retell AI✓
Smith.ai✗
Model
Retell AIfreemium
Smith.aicommercial
Price level
Retell AIlow
Smith.aiunknown
Starting price
Retell AI$0.00
Smith.ai$10
Transparent
Retell AI✓
Smith.ai✗
Integrations
Count
Retell AI1,000
Smith.ai7,000
Security
Certifications
Gdpr
Retell AI✓
Smith.ai–
Hipaa
Retell AI✓
Smith.ai–
Iso27001
Retell AI✓
Smith.ai–
Soc2
Retell AI✓
Smith.ai–
Reliability
Sla pct
Retell AI99.9
Smith.ai–
Market
Availability
Content
Faq
Retell AI7 items
Smith.ai6 items

Capabilities

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

Capabilities
Deployment model
Retell AINo code saas platform
Smith.aiNo code saas platform
Sub second latency and interruption barget in handling
Retell AI✓
Smith.ai✓
Dynamic mid call API function execution
Retell AI✓
Smith.ai✓
Live human handoff and call transfer logic
Retell AI✓
Smith.ai✓
Emotion prosody and custom voice cloning
Retell AI✓
Smith.ai✗
Inbound reception and ivr routing replacement
Retell AI✓
Smith.ai✓
Outbound dialing and campaign management
Retell AI✓
Smith.ai✓
Post call transcription and CRM sync
Retell AI✓
Smith.ai✓
Voicemail detection and answering machine drops
Retell AI✓
Smith.ai✗
Twilio vonage bring your own carrier byoc support
Retell AI✓
Smith.ai✗
SOC2 type ii
Retell AI✓
Smith.ai✗
HIPAA compliance for medical appointment setting
Retell AI✓
Smith.ai✗
Pricing model
Retell AIPer minute usage based
Smith.aiPer minute usage based

What each one is

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

Retell AI

Leader

A cloud-based platform that deploys conversational AI agents to handle inbound and outbound phone calls, including lead qualification, appointment booking, call routing, and CRM integration.

Independently observed

Smith.ai

A service providing around-the-clock call answering and lead qualification, with AI handling initial intake and human agents available for escalation, plus automatic integration with CRM and scheduling tools.

Independently observed

Pricing

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

Retell AI

Leader
from $0.00/messageUsage-basedFree tier

From $0.07/min usage-based pricing. Free tier with $10 credits.

  • Pay-as-you-go$0.07–$0.31/min for voice agents; $0.002+/msg for chat agents
    • 20 concurrent calls included
    • Full platform access
    • Drag-and-drop agent builder
    • Call transfers and routing
    • CRM integration
    • +1 more
  • EnterpriseContact sales
    • Unlimited concurrent calls
    • HIPAA/BAA compliance
    • SSO
    • Custom MSA
    • Custom DPA
    • +3 more
as of verify ↗

Smith.ai

from $10/contact/moSubscription

From $600/month (warm engagement, 50 contacts minimum) or $10,000/month (cold prospecting, 1,000 contacts minimum). Includes complimentary appointment booking, text/email follow-up, and first CRM integration.

  • Warm engagement$12/contact/month (50 contact minimum) plus $750 setup fee
    • 24/7 North America-based agents
    • Bilingual support available
    • Campaign tracking dashboard
    • 5 calls per contact with multi-channel engagement
    • Dedicated account manager
    • +2 more
  • Cold prospecting$10/contact/month (1,000 contact minimum)
    • 24/7 North America-based agents
    • Bilingual support available
    • Campaign tracking dashboard
    • 5 calls per contact with multi-channel engagement
    • Dedicated account manager
    • +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
Retell AI✓
Smith.ai✓
Deployment
Cloud / SaaS
Retell AI✓
Smith.ai✓

Integrations

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

In common (9)
  • Salesforce
  • HubSpot
  • Zapier
  • Make
  • RingCentral
  • ServiceTitan
  • Slack
  • Xero
  • Calendly

Retell AI

Leader
48 total - 39 not shared
  • Twilio
  • Vonage
  • Telnyx
  • Zoho CRM
  • n8n
  • viaSocket
  • Zendesk
  • Talkdesk
  • Nice
  • Workable
  • Go High Level
  • OpenDental
  • Monday.com
  • Smartsheets
  • Shopify
  • Stripe
  • Supabase
  • Webflow
  • WhatsApp
  • ElevenLabs
  • Minimax
  • Fish Audio
  • Cartesia
  • OpenAI
  • +15 more
Independently observed

Smith.ai

49 total - 40 not shared
  • Clio
  • Filevine
  • Lawmatics
  • MyCase
  • PracticePanther
  • Google Calendar
  • Microsoft Teams
  • Dropbox
  • Gmail
  • OneDrive
  • Typeform
  • Constant Contact
  • Square
  • PayPal
  • LawPay
  • TrialPay
  • CPACharge
  • Help Scout
  • Todoist
  • Acuity Scheduling
  • ActiveCampaign
  • CallRail
  • Housecall Pro
  • 3CX
  • +16 more
Independently observed
Still deciding?

Retell AI or Smith.ai: 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.