AgentVoice vs Retell AI

AgentVoice

AgentVoice has turned from a $0.10-per-minute self-serve platform into a done-for-you voice agency, so it now suits companies that want someone else to scope, build and tune their phone agents. Teams that want to sign up and build an agent themselves on a metered plan should go to Vapi or Retell directly, since every AgentVoice engagement starts with a sales call.

Pros

• +Platform licence is a one-time fee with no per-minute platform charge; usage is billed at provider cost
• +Engine can run in the client's Azure or AWS account with the code in their own GitHub organisation
• +Builds on whichever platform the client already uses: Vapi, Retell, ElevenLabs, Bland or Synthflow
• +Each agent is tested on real calls before launch and tuned afterwards

Cons

• −No public price for custom builds or the licence; every option goes through sales
• −The self-serve plan with free credit and per-minute billing is no longer on the pricing page
• −Changes after launch are billed hourly or on retainer

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

Is AgentVoice cheaper than Retell AI?

Retell AI starts at $0.07/min; AgentVoice prices on request, so a quote is the only way to compare.

Does AgentVoice or Retell AI have a free tier?

Retell AI has a free tier; AgentVoice prices on request.

Which has a public API, AgentVoice or Retell AI?

Both ship a public API, so either can be built on; the fact table above shows the platforms each one runs on.