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Harmony.ai vs PolyAI: built for revenue calls, not only customer service.

Harmony.ai is a managed voice AI platform for teams handling 500+ calls a month. White-glove implementation, live in days, every call transcribed and scored. Our own models, built for the phone.

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Harmony.ai vs PolyAI

CriteriaHarmony.ai logoPolyAI
Platform
Built forRevenue teams: AI receptionist, AI SDR, schedulingEnterprise customer-service voice agents for contact centers in hospitality, financial services, healthcare, insurance, retail, telecom, travel and utilities
ModelOur own models, built for the phoneOwn dialog models: Dialog-RSN-1 and Dialog-RAVEN-3.5 (published)
Sounds humanOur own conversation models handle interruptions, timing and tone, so calls feel human75 languages at native-speaker quality (published); voice providers not named
ImplementationWhite-glovePolyAI builds custom agents, or self-serve in Agent Studio from no-code to full code; per-minute price includes maintenance and 24/7 support (published)
Calling & scale
LatencySub-200ms median responseUnder 300ms model response on Dialog-RSN-1; 280 to 600ms cascade on Dialog-RAVEN-3.5 (published)
Concurrency1 to 10,000 parallel callsNot published
TelephonyBuilt-in telephony or bring your own trunks; buy, assign and retire numbers across regions from one inventory; port or forwardOutbound calling via API, enabled by a PolyAI representative; SIP or Twilio routing (published)
Spam remediationNumber-reputation monitoring, automatic quarantine of flagged numbers, remediation, branded caller ID and local presenceNot published
IVR, screeners and gatekeepersNavigates external phone trees, hold queues and human gatekeepers to reach the right party; DTMF both ways; voicemail detection and retryInbound self-service; outbound reminders, follow-ups and notifications via API; detecting a human, IVR or voicemail on outbound is not out of the box (published)
Insight & improvement
ReportingFunnel, call-flow and conversation analytics on 100% of calls; ask for a report in plain language and get it built on the spotMonitoring dashboards and a 99.9% uptime SLA included in the per-minute price (published)
Self-improvementReasoning trace on every call, simulate changes on past calls, agent proposes knowledge-base updates you approveProactive performance improvements by PolyAI included in the per-minute price (published)
ExperimentationA/B live or synthetic traffic, publish the winner, roll back; agent keeps what converts across a campaignNot published
Pricing & compliance
PricingPlans start at $3K/monthPer minute, custom quote; no public rate card (published)
ComplianceSOC 2 Type II, HIPAA, GDPR, ISO 27001SOC 2+ Type 2, ISO 27001, PCI DSS, GDPR (published)

PolyAI figures from poly.ai (home, pricing, Agent Studio and security pages) and docs.poly.ai (outbound calling), checked 12 Oct 2026. PolyAI is a trademark of its owner. Harmony.ai is not affiliated with PolyAI.

Hear it for yourself.

Three scenarios. One AI agent under pressure.

The interruption test
The caller changes their mind mid-sentence. The agent keeps up, no reset.
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The edge case
An off-script question gets a controlled answer, then straight back to the flow.
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The handoff
When it's genuinely human territory, the agent transfers warm, with a summary.
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Proactive Sales Use Cases

Our agents integrate with your CRM to handle operations across the entire customer lifecycle.

Lead Qualification

Instantly screen inbound contacts, confirm match criteria, and log results.

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Appointment Setting

Sync with calendar nodes to book qualified discovery slots.

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Discovery Calls

Run structured discovery, capture pain and budget, and route to the right rep.

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Book & Close

Take the call from pitch to signed, handling objections in the moment.

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Follow-ups & Nurturing

Re-engage dormant pipeline automatically with deep historic memory.

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Renewals

Reach accounts before term end, confirm intent, and lock the next cycle.

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Upsell & Cross-sell

Spot fit from account history and pitch the next product on-call.

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Payment Reminders

Chase overdue balances politely, confirm intent to pay, and log the promise.

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Retention & Win-back

Catch cancel signals early, hear the reason, and make a targeted save offer.

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Hear it on your own use case.

Four quick questions, then we’ll configure an agent on your use case and let you listen before you commit to anything.

Talk to a Voice AI expert

What should your agents automate?

Step
0104
Pick all that apply.

Why teams choose Harmony.ai over PolyAI

Built for revenue, not a toolkit

Inbound and outbound on one platform. The agent dials, qualifies, and books meetings in your CRM.

Implementation is included

White-glove setup, live in days. No engineering project to stand up telephony, models, and workflows.

Every call becomes data

Every call transcribed and scored. Warm transfers with context, PII redaction, TCPA and DNC aware.

Scale without a quota request

1 to 10,000 parallel calls. Sub-200ms median response at any volume.

Natural interruptions, tone, and timing. Your prospects won't be talking to a robot.

Purpose-built for revenue teams - qualification, booking, follow-ups. Not a generic voice platform bent into shape.

Sub-200ms responses, grounded in your data. No hallucinations, no awkward pauses.

You decide what your agent says, when it escalates, and where the guardrails are. Test every change before it ships.

Meet Siena, your AI assistant

Siena agent builder screen asking what the agent should doVisual editing canvas for building the call flowProactive insights screen with smart suggestionsSelf improving view showing suggested fixesAI generated reports screen with booking rate

Enterprise-grade security

Enterprise-grade AI infrastructure with built-in protection and security, data privacy, governance, permissions, and compliance.

SOC Type 2

We meet SOC 2 requirements to ensure secure and compliant management of data across all our systems.

GDPR

With our technical team based in Sweden, we operate under GDPR - the world's strictest standard for data privacy.

HIPAA

We safeguard your protected health information with HIPAA-compliant processes, policies, and technical controls.

ISO 27001

Harmony.ai is fully certified with ISO 27001, the internationally recognized standard for information security management.

SOC Type 2

We meet SOC 2 requirements to ensure secure and compliant management of data across all our systems.

GDPR

With our technical team based in Sweden, we operate under GDPR - the world's strictest standard for data privacy.

HIPAA

We safeguard your protected health information with HIPAA-compliant processes, policies, and technical controls.

ISO 27001

Harmony.ai is fully certified with ISO 27001, the internationally recognized standard for information security management.

Frequently asked questions

Plans start at $3K/month. Pricing depends on call volume and use case. Built for teams handling 500+ calls a month.