Retell AI
VS Vapi

Data as of 03/2026

Need a reliable alternative to Vapi for your AI calls?

Retell AI delivers a more transparent pricing model, enterprise-grade compliance, and unique call automation features that Vapi doesn't provide.
From advance security features and knowledge base integration to verified numbers and global calling, Retell is built to scale customer conversations with greater reliability and lower costs.
For businesses under pressure to reduce call expenses, improve answer rates, and still deliver human-quality experiences, Retell is the stronger choice compared to Vapi.

Retell AI

4.9

Vapi

2.3

Overview

The Business-Ready Alternative to Vapi

Choosing the right AI voice platform goes beyond getting calls to work — it’s about building reliable, on-brand conversations that scale. Here’s how Retell stands apart from Vapi.

Vapi

What it doesA developer-first platform for building AI call agents via API, emphasizing flexibility and custom integrations.

How it HelpsEnables custom LLM and telephony setups for technical teams, but requires significant developer resources to configure and scale.

When to UseFor developer-led teams building highly custom voice workflows who don't need out-of-the-box usability.

Retell AI

What it doesA performance-driven voice AI platform designed for real business use—reliable, scalable, and fully secure.

How it HelpsAutomates thousands of calls daily with clarity, analytics, and the flexibility to integrate top LLMs like ChatGPT and Anthropic.

When to UseWhen accuracy, customer experience, and compliance matter to your bottom line.

Stats that Matter

The Retell AI Advantage

Retell AI is built for production, not just prototyping. Our infrastructure delivers measurable results for enterprise clients, with the reliability and scale your business depends on.

faster deployment for enterprise clients at SWTCH energy

improvement in agent satisfaction (internal surveys)

99.

99%

uptime across all plans

Features, Pricing and Compliance

Feature, Pricing & Compliance Breakdown

Vapi's developer-first architecture creates bottlenecks for non-technical teams. Retell delivers the same flexibility with intuitive workflows, transparent flat-rate pricing, and enterprise compliance included—no extra platform fees required.

Features	Retell AI 4.9	Vapi 2.3

LLM Model & Intelligence	Always integrates the newest LLMs	Supported with cost for API
Custom LLM Integration	Supported	Supported
Custom Telephony	Native SIP Trunking	Not Supported
Warm Transfer	Supported	Not Supported
Multilingual	30+ Languages Supported	Limited to what API models supports
User Experience	Ease of Use, Intuitive Workflows	Must Know Code
Preset Functions	Supported	Not Supported
Branded Calls	Supported	Not Supported
IVR & DTMF Support	IVR with DTMF tone recognition	Supported
Post-Call Analytics	Real-Time Insights	Limited Analytics
Voice & Audio Quality	Excellent	Varies based on quality upgrades
Latency	Sub-second Latency	Sub-second Latency

Pricing	Retell AI 4.9	Vapi 2.3

Voice AI	$0.07/min	$0.05/min + $0.066 fixed platform fee (price varies)
Phone Number	$2.00/month	Variable Price
Toll Phone Number	$5.00/month	Not Supported
Verified Phone Number	Included at no extra cost	$0.01/minute
Branded Calls	Included at no extra cost	Limited
Batch Calls	Included at no extra cost	Limited
Extra Knowledge Base Slots	Included at no extra cost	Supported
Concurrency Add-on	Included at no extra cost	Supported

Enterprise-Grade	Retell AI 4.9	Vapi 2.3

Compliance	HIPAA, SOC2 Type 1 & 2, GDPR	HIPAA, SOC2 Type 1 & 2, GDPR
Rate Limit	No rate limit	No rate limit
Uptime to date	99.99%	99.94%
PII Redaction	Automatic redaction of names, addresses, DOBs, passwords, and PINs	Not Supported
Role-Based Access Control	Supported	Not Supported

Learn More

Discover More
Features

Explore how Retell AI can transform every part of your call operations. See the full range of capabilities designed for smarter automation, better efficiency, and enhanced customer experience.

View All Product Features