FREE COST TOOL • VOICE AI OPERATIONS
AI Voice Agent Cost Calculator:
Per Call & Per Month
Estimate AI receptionist and phone-agent cost from connected minutes, plan allowance, telephony, external model usage, and optional integrations. Compare a hosted ElevenAgents plan with a modular US Twilio ConversationRelay stack without double-counting transcription.
VOICE AGENT COST MODEL
Published hosted-plan defaults: standard overage $0.08/minute, burst $0.16/minute, and text $0.003/message. Eligible silence longer than ten seconds is modeled at 5% of normal voice usage only when you enter those minutes.
600 connected minutes · 140 AI-resolved calls
$0.08 estimated marginal cost per added AI minute
Based on your 70% resolution assumption
600 billable agent minutes
Provider-specific estimates you can replace
Messages, recording, storage, or fixed workflow add-ons
Price the full phone conversation, not one AI component.
A voice-agent bill can combine a platform allowance, connected call minutes, phone network, an external language model, phone numbers, concurrency overage, recordings, and workflow integrations. The result that matters is cost per connected call and cost per call the agent actually resolves—not the cheapest component on a pricing table.
BILLING GUARDRAILS
Use provider usage data when it becomes available.
- ElevenAgents plan allowances and voice overage are separate from model and telephony usage.
- Only enter silence minutes that meet the provider's documented eligibility rule; the default assumes no silence discount.
- ConversationRelay includes real-time transcription, so this preset does not add a second default STT charge.
- Twilio voice pricing can vary by country, destination, number type, carrier fees, taxes, and contract discount.
- Recording, consent, privacy, emergency calling, and industry rules are outside this cost estimate and must be reviewed for the deployment region.
VOICE AGENT COST FAQ
Questions before choosing an AI receptionist plan.
How much does an AI voice agent cost per call?
Divide the complete monthly voice-agent cost by connected calls. Include the subscription or active-session charge, telephone network, external language model, numbers, overages, and optional integrations instead of quoting only one per-minute component.
How do you calculate voice AI cost per minute?
A hosted plan may combine a monthly fee, included minutes, standard overage, burst usage, and separate model or phone costs. A modular stack adds the real-time agent, inbound or outbound telephony, numbers, external model usage, and optional recording.
What does an AI receptionist cost per month?
Monthly cost depends on call volume, average connected duration, plan allowance, call direction, burst concurrency, and the share of calls the agent resolves. Use your own call history rather than a vendor's best-case demonstration.
Does ElevenAgents include LLM and phone charges?
The public agents pricing separates the plan and voice overage from language-model and telephony usage. This calculator therefore leaves LLM and phone cost as user-entered assumptions.
Does Twilio ConversationRelay include transcription?
Twilio documents real-time transcription as part of the ConversationRelay active-session price. This preset does not add a second default speech-to-text charge.
Are these rates valid outside the United States?
The Twilio defaults are for a US local number and the published US voice price table. Destination, number type, country, carrier fees, taxes, and contracted discounts can change the final bill.
Planning estimate only, not a provider quote or compliance determination. Results exclude taxes, carrier surcharges, contracted discounts, human escalations, setup work, and any item left at zero. Verify live pricing, billed usage, recording consent, and applicable communications rules before deployment.