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Retell AI vs Vapi

Retell AI and Vapi are both developer-focused platforms for building conversational voice AI agents. This comparison examines their API capabilities, latency, pricing, and ease of integration.

FeatureRetell AI4.4 ★Vapi4.3 ★
TaglineBuild and deploy conversational voice AI agentsVoice AI platform for developers
Pricing fromUS$0.07/minUS$0.05/min
Pricing modelPer-minutePer-minute
AU support——
AU-basedNoNo
Free trial✓ Yes✓ Yes
Key features
  • ✓Voice AI agent builder
  • ✓Low-latency conversations
  • ✓No-code and API options
  • ✓Call recording
  • ✓Analytics
  • ✓Developer voice AI platform
  • ✓Custom LLM support
  • ✓Tool calling
  • ✓Telephony integration
  • ✓Web and phone agents
Pros
  • + Very low latency
  • + Flexible build options
  • + Competitive pricing
  • + Good documentation
  • + Very developer-friendly
  • + Flexible and customisable
  • + Low cost per minute
  • + Supports custom AI models
Cons
  • − Newer platform
  • − Limited plug-and-play templates
  • − Technical knowledge helpful
  • − Requires development skills
  • − Not suitable for non-technical users
  • − US-centric
Founded20232023
HQUnited StatesUnited States
Visit Retell AI ↗Visit Vapi ↗

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