How Much Does an AI Phone Agent Cost

What per minute pricing really costs

Usage based vendors bill for connected talk time: Retell publishes $0.07 to $0.31 per minute and Bland $0.12 to $0.14. At an assumed three minute restaurant order call, Retell's range is about $0.21 to $0.93 per completed order. Run those rates against a location taking 20 phone orders a day and the spend lands roughly between $125 and $560 a month, before any platform fee.

The spread is wide because the quoted per minute rate rarely tells the whole story. The cheapest advertised rates usually cover the bare voice engine, with the features that make the agent useful billed separately.

Volume assumptions drive every quote, so pin them down before comparing vendors. Ask each vendor to price the same scenario: your real daily call count, your average call length, and your peak day, then compare the resulting monthly bills rather than the headline rates.

The hidden fees in usage pricing

Read usage contracts for five common add ons: one time setup and menu onboarding fees, per order or per booking surcharges stacked on top of minutes, telephony passthrough fees, monthly platform minimums that apply even in slow months, and overage rates that jump sharply past an included minute bucket.

Billing for failed calls is the quietest trap. Some platforms charge for every connected minute whether or not the call produced an order, so a chatty caller who hangs up without buying still costs money. Ask specifically how abandoned and transferred calls are billed.

Flat monthly plans vs usage billing

Flat rate plans charge a fixed monthly fee regardless of call volume; Slang AI, for example, lists restaurant plans starting at $399 to $599 per location a month. Flat pricing is always easier to budget, and at high volume it can be cheaper; at low or moderate volume, usage pricing often wins, so run your own minutes through both. Predictability also matters at budgeting time, since a flat bill removes the seasonal swings that usage plans amplify.

The comparison that matters is not AI versus AI. It is AI versus the status quo. A full-time staff member effectively dedicated to the phone costs about $2,600 a month in wages alone at the BLS median of $15.24 an hour for food and beverage serving workers, before payroll taxes, covers one shift, takes one call at a time, and still misses the rush. The alternative status quo, missing the calls entirely, costs thousands a month in walked orders.

How to compare quotes correctly

The cost of an AI phone agent is the total monthly bill divided by the number of completed, paid orders it produces, not the advertised per minute rate. Model your own volume: calls per day, average call length, and expected completion rate, then run each vendor's full fee schedule against it.

X1 Voice, Batch Group's AI phone agent for restaurants, answers the existing line 24/7, completes orders with payment on the call, and sends tickets natively into Square, Clover, and OrderCounter, which makes its cost per recovered order straightforward to measure.