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Retell AI

Communication
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Voice AI infrastructure with HIPAA support and ~620ms latency. Strong middle ground between Vapi (dev-first) and turnkey receptionists.

Overview

Retell AI is a voice agent platform aimed at production deployments. Latency hovers around 620ms (the threshold for "sounds human"), HIPAA support is included on standard plans, and integrations with GoHighLevel, HubSpot, and Cal.com work cleanly. It sits between Vapi (max flexibility, requires dev work) and fully turnkey receptionists like Rosie. Pricing starts at $0.07/min plus LLM and TTS costs.

Pros & Cons

Pros

  • HIPAA-ready on standard plans
  • ~620ms latency (production usable)
  • Good CRM integrations
  • Balanced inbound/outbound

Cons

  • Smaller community than Vapi or Bland
  • Some advanced flows require dev work
  • Total cost depends on LLM/TTS choices