What does voice AI cost at your volume?
Enter your call volume once and see every platform with published per-minute pricing ranked by estimated monthly cost.
Your call volume
Enter how your business uses the phone — every platform below is priced at the same volume using vendor list rates.
That's 4,000 minutes of calls per month.
Estimated monthly usage cost
cheapest first · usage only- 1AssemblyAI
Voice Agent Platform · $0.075/min
$300/mo - 2Deepgram
Developer API · $0.075/min
$300/mo - 3Bland AI
Voice Agent Platform · $0.140/min
$560/mo - 4Retell AI
Voice Agent Platform · $0.070–$0.310/min
$280–$1,240/mo - 5Synthflow
AI Receptionist · $0.150–$0.240/min
$600–$960/mo - 6Vapi
Developer API · $0.130–$0.330/min
$520–$1,320/mo
Estimates use published per-minute list rates and cover usage only — most platforms add a monthly base fee, telephony/provider charges, or volume discounts. Developer APIs look cheapest because you build and operate the agent yourself. Solid bar is the vendor's lowest rate; the lighter bar extends to its highest. Always confirm pricing with the vendor.
Not in this comparison
These platforms use custom, subscription, or enterprise pricing without a published per-minute rate: