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Pricing comparison

The whole price, on one line.

Most voice AI is quoted per-minute — then the language model, telephony, and add-ons stack on top. Voismatic bundles all of it into one flat monthly plan, so the number you see is the number you pay.

Usage-based platforms

A low headline per-minute rate, then separate charges for the model, telephony, phone numbers, and features. The real cost only shows up on the invoice.

Voismatic

One flat plan with voice minutes and telephony included. No per-provider math, no surprise add-ons, no bill you can't predict at the start of the month.

Headline rate vs. real all-in cost

“Real all-in” folds in the model, telephony, and common add-on costs that usage-based platforms bill separately.

ProviderAdvertisedReal all-inBilled on topSource
Voismatic Pro

Flat monthly plan — 430 voice minutes included, telephony bundled.

$39/mo flat~$0.09/min
  • Nothing — one bill covers the phone number, voice, and workflow
voismatic.com/pricing
Vapi

Usage-based orchestration — you bring your own LLM, STT, TTS, and telephony.

$0.05/min platform fee~$0.07–0.31/min
  • Model provider costs (STT + LLM + TTS)
  • Telephony (e.g. Twilio, per leg)
  • Concurrency lines beyond the included set
  • HIPAA as a paid add-on
vapi.ai/pricing
Retell AI

Pure usage-based, no platform fee — priced per component.

$0.07/min headline~$0.13–0.31/min
  • LLM cost by model
  • Telephony per minute
  • Knowledge base, QA, guardrails, and other add-ons
  • Phone numbers, extra concurrency
retellai.com/pricing
Bland AI

Platform fee plus tiered per-minute rate; lower rates require a monthly plan.

$0.14/min (or $299+/mo)~$0.11–0.14/min + fees
  • Per-dial fees on outbound attempts
  • Transfer-time billing
  • $299–499/mo to reach the better per-minute tiers
bland.ai/pricing
Synthflow

Per-minute usage across tiers; public pricing now leads with enterprise plans.

Tiered / Enterprise~$0.45–0.58/min
  • Overage minutes on mid-tier plans
  • Premium voices and low-latency add-ons
  • Enterprise plans quoted annually
synthflow.ai/pricing
ElevenLabs Agents

Credit-based tiers for the platform; phone and models are separate.

$0.08/min + credits$0.08–0.16/min + more
  • LLM tokens billed separately
  • Telephony via your own Twilio/SIP carrier
  • Burst pricing (2×) over your concurrency cap
elevenlabs.io/pricing

How we compiled this

Figures are drawn from each provider's public pricing page as of July 2026, together with third-party cost analyses. Ranges reflect that real cost depends on the language model, call length, and the add-ons a team turns on. Voice AI pricing changes often — always confirm the current rate with the provider before deciding. Voismatic's effective per-minute figure is the Pro plan's $39 across its 430 included minutes, with telephony bundled.

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