Review · Updated May 2026

Retell AI Review (2026): Is It the Best AI Voice Agent Platform?

Retell AI is the leading voice agent orchestration platform for agencies and developers. It offers the industry's best latency (~800ms), a full agency sub-account model, and native Google Calendar integration. Best choice for most agency deployments.

Rating

4.8/5 ★

Starting price

$0.07/min

Latency

~800ms

Setup time

30 minutes

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✓ Pros

  • ✓Industry-leading ~800ms voice-to-voice latency
  • ✓Full agency sub-account model
  • ✓Native Google Calendar integration
  • ✓Excellent documentation and developer experience
  • ✓Built-in call transcripts, summaries, and sentiment analysis
  • ✓Phone number provisioning in dashboard

✗ Cons

  • ✗Less flexible than VAPI for deeply custom tool use
  • ✗Agency pricing requires application
  • ✗Limited no-code builder vs Synthflow

Retell AI Pricing

PlanPriceIncludes
Pay-as-you-go$0.07/min—
Growth$0.05/min1,000 min/mo included
AgencyCustomVolume discounts at 50+ concurrent min

Retell AI Is Best For

  • →Agencies managing multiple clients
  • →Mobile notaries and service businesses
  • →Developers who want the best out-of-box experience

Technical Details

LLM Support

Claude, GPT-4o, GPT-4o mini, Gemini, Custom

White-label

Yes — full sub-account model

Founded

2023

Website

https://retellai.com
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