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Retell AI

15 voice-agent/Retell AI/ACTIVE

Retell AI is a voice-agent platform focused on production call quality: fine-grained latency tuning, interruption handling, and both API and no-code agent building for phone agents.

SEC.01

What it does

  • 01API + no-code builder
  • 02Barge-in/interruption handling
  • 03Warm transfer + telephony
  • 04Post-call analytics
  • 05Multilingual voices
  • 06Compliance options
SEC.02

Who it's for

Teams shipping phone agents who care about conversational polish — latency, interruptions, handoffs — more than stack tinkering.

PRICING

Pricing

Usage-based (~$0.07+/min); enterprise plans. List prices as checked against the vendor's pricing page on 2026-09-25; plans change often, so confirm before deciding.

caveat · before you adopt

Per-minute pricing composes with provider costs; test your call flows hard before scaling — small latency budgets get eaten by custom tools.

ALT

Other voice agents (6)

Vapi

Vapi · voice-agent

api/voice · cloud · Usage-based: ~$0.05/min platform fee + model/telephony costs

Bland AI

Bland AI · voice-agent

api/voice · cloud · Usage-based per-minute; enterprise plans

Synthflow

Synthflow · voice-agent

api/voice · cloud · Plans from ~$29/mo; per-minute overages

ElevenLabs Agents

ElevenLabs · voice-agent

api/voice · cloud · Included in ElevenLabs plans; per-minute credits

Deepgram Voice Agent

Deepgram · voice-agent

api/voice · cloud · Pay-as-you-go per-minute (~$0.08/min) — verify

Grok Voice Agent API

xAI · voice-agent

api/voice · cloud · $0.08/min agent audio; telephony +$0.01/min; STT $0.10-0.20/hr; TTS $4.20/M chars
VS

Head-to-head (1)

FAQ

Frequently asked

What is Retell AI?

Retell AI is a voice-agent platform focused on production call quality: fine-grained latency tuning, interruption handling, and both API and no-code agent building for phone agents.

Who is Retell AI for?

Teams shipping phone agents who care about conversational polish — latency, interruptions, handoffs — more than stack tinkering.

How much does Retell AI cost?

Usage-based (~$0.07+/min); enterprise plans. List prices as checked against the vendor's pricing page on 2026-09-25; plans change often, so confirm before deciding.

Does Retell AI run locally or in the cloud?

Retell AI runs in the vendor's cloud. Its interfaces are an API or protocol, a live voice/phone channel.

What are alternatives to Retell AI?

Other voice agent entries in the catalog: Vapi, Bland AI, Synthflow, ElevenLabs Agents, Deepgram Voice Agent, Grok Voice Agent API. Different categories solve the same problem differently — see the Voice & phone agents category page for tradeoffs.

What should I know before adopting Retell AI?

Per-minute pricing composes with provider costs; test your call flows hard before scaling — small latency budgets get eaten by custom tools.