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Compare how voice AI agents operate

Compare documented skills, published claims, and operating models.

PolyAI (Agent Studio) logo
PolyAI (Agent Studio)

5.0(12 G2 reviews)

Platform for building and running voice/chat dialog agents that handle enterprise customer-service calls (bookings, payments, authentication, troubleshooting) for contact centers in hospitality, healthcare, banking, retail.

G2 reviewsBuyer-reported scores from G2 reviews. These are separate from G2 task evaluation results.

Ease of use
100
Quality of support
100

G2 evaluation not yet available

Request this product for a future evaluation.

Skills

Billing and PaymentsBooking and ReservationsAuthentication and Call Routing

Performance claims

Vendor-reported

PolyAI is on track to add just over $7M in incremental revenue

Product strategy

Self-serveyes
Agent-callable (A2A)yes
ElevenLabs (Agents) logo
ElevenLabs (Agents)

4.5(1,156 G2 reviews)

Multimodal AI agents platform: build, test and deploy voice/chat agents in 70+ languages with RAG knowledge bases, external tool calls, multi-agent workflows, testing, analytics, SDKs and telephony.

G2 reviewsBuyer-reported scores from G2 reviews. These are separate from G2 task evaluation results.

Ease of use
87
Quality of support
82

G2 evaluation not yet available

Request this product for a future evaluation.

Skills

Customer Support and Contact Center Call ResolutionInbound Scheduling and Virtual ReceptionOutbound Sales, Lead Qualification and Batch Calling

Performance claims

Vendor-reported

Optimized for sub-second turnaround across speech, reasoning, and voice synthesis

Product strategy

Forward-deployed engineeringyes
Self-serveyes
Agent-callable (A2A)yes
Vapi logo
Vapi

4.5(1 G2 reviews)

Developer platform (API, SDKs, dashboard) to build, test and deploy phone and web voice AI agents; used by developers and enterprises for support, scheduling and qualification.

G2 reviewsBuyer-reported scores from G2 reviews. These are separate from G2 task evaluation results.

Ease of use
100
Quality of support
83

G2 evaluation not yet available

Request this product for a future evaluation.

Skills

Customer Support Call AutomationLead QualificationAppointment Scheduling

Performance claims

Vendor-reported

99.9% uptime for enterprise clients

Product strategy

Forward-deployed engineeringyes
Self-serveyes
Agent-callable (A2A)yes