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AgentVoice vs Retell AI

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors. AgentVoice starts at $0.10, Retell AI at $0.07. Both have a free tier. Both ship a public API.

AgentVoiceDeploys AI voice agents that handle phone calls and complete the CRM and scheduling work after.Retell AIBuild and run AI phone agents that book, qualify and transfer calls, billed by the minute.

Side by side

FactAgentVoiceRetell AI
CategoryVoice Agents & Phone AIVoice Agents & Phone AI
Pricing modelFreemiumFreemium
Starts at$0.10 minute$0.07 minute
Public APIYesYes
PlatformsWeb, APIWeb, API
CompanyAgentVoiceRetell AI Inc.
Launched—2023
Last verifiedSep 1, 2026Sep 6, 2026

What our research says

AgentVoice

AgentVoice's strength is going past the call itself into the CRM update, calendar booking and follow-up workflow that usually needs separate automation glued on afterward. The no-developer-needed setup keeps it accessible, but $0.10/minute across every call component adds up quickly for high call-volume operations.

Pros

  • Post-call automation (CRM updates, scheduling) is built in, not a separate add-on
  • Native integrations with HubSpot, Salesforce, Google Calendar and Twilio
  • No-code setup claimed to take under 30 minutes for a working agent

Cons

  • Per-minute pricing across LLM, voice, STT and TTS combined can be hard to predict per call
  • Only 5 concurrent calls included before needing a custom plan
  • No company founding year or funding history published

Retell AI

One of the more honest voice-agent stacks: the pricing page breaks out infrastructure, TTS and LLM cost per minute so you can predict a call's cost instead of guessing. Telephony choice is wide and the concurrency allowance is generous. The catch is that per-minute billing plus add-ons makes a busy contact centre expensive fast, and the cheap end of the range only holds if you pick the cheap models.

Pros

  • Per-minute cost broken down by voice infrastructure, TTS provider and LLM on the public pricing page
  • Telephony via SIP trunking, Twilio and Vonage plus n8n, HubSpot, Make and Go High Level integrations
  • 20 concurrent calls included before any concurrency charge
  • Voice, chat and SMS agents share one platform and API
  • HIPAA path exists via a signed BAA covered in the terms of service

Cons

  • Cost per minute more than quadruples between the cheapest and most capable model combinations
  • Knowledge base, denoising, PII removal and branded caller ID are all metered extras
  • No flat-rate plan, so a spike in call volume lands straight on the invoice

Which one fits

Choose AgentVoice if you need

  • Small and midsize businesses wanting phone coverage without hiring a call center
  • Teams already using HubSpot, Salesforce or Twilio who want calls to trigger workflows automatically

Choose Retell AI if you need

  • Teams replacing an outbound qualification or booking script
  • Contact centres that already have Twilio, Vonage or SIP trunking
  • Developers who want per-minute cost visibility before launch

More comparisons

All AgentVoice alternatives →Browse all Voice Agents & Phone AI →