What Is an AI Receptionist? How It Works and What It Costs

What happens on a call

1. The call arrives. You forward your business number to the AI service, either for every call, only after hours, or only when you do not pick up. Some vendors give you a new number instead.
2. It listens. Speech recognition turns the caller's words into text in real time.
3. It decides. A language model reads that text alongside what you told it about your business: services, prices, hours, service area, FAQs and rules such as "transfer anything about a gas leak."
4. It speaks. A synthetic voice reads the reply, usually within about half a second to a second.
5. It acts. Through integrations it checks your calendar and books a slot, writes a lead into your CRM, sends the caller a text with a link, or transfers the call.
6. It reports. You get a transcript, a summary and often a recording.

Most vendors build the knowledge base for you from your website or Google Business Profile, then let you edit it. Rosie, Upfirst and My AI Front Desk all describe setup this way.

What an AI receptionist can do

• Answer every call at once, so no caller hits a busy signal
• Handle hours, pricing, directions, service area and job status questions
• Book, reschedule and cancel appointments in Google, Outlook, Calendly, Clio, Jobber or field service software, depending on the vendor and plan
• Ask qualifying questions and capture lead details
• Take messages and send them to you instantly
• Filter spam and robocalls (Upfirst and Smith.ai do not bill for them)
• Speak Spanish and other languages: Upfirst lists 35+, RingCentral six with mid call switching
• Transfer to you or your team, with a summary of the caller's need

What it cannot do well

• Judgment calls. Pricing exceptions, complaints, legal or medical concerns.
• Emotional callers. An upset customer often wants a person. Only hybrids such as Smith.ai and Abby Connect have staffed humans behind the AI.
• Anything you did not teach it. It answers from your instructions. Gaps in the knowledge base become wrong or vague answers.
• Physical front desk work. It does not greet walk ins, sign for packages or handle paperwork.

What it costs

Vendors bill in three ways, and the unit matters more than the headline price.

Billing unit	Example	Entry plan
Per call	Upfirst	$24.95 for 30 calls, then $1.50 each
Per call, free tier	Smith.ai	$0 for 25 calls, then $3.00 each
Per minute	Rosie	$49 for 250 minutes
Per minute	Dialzara	$29 for 60 minutes
Per unique caller	Goodcall	$79 for 100 unique callers
Flat, unlimited	Clara	$39.99 a month

At 200 calls or minutes a month, pure AI plans cost roughly $49 to $160. A full time receptionist at the BLS median wage of $18.27 an hour costs about $3,167 a month in wages alone, and a live answering service such as Ruby charges $720 for 200 minutes. Full breakdown: how much an AI receptionist costs.

AI receptionist vs answering service vs voicemail

An answering service uses trained people and costs about $2.76 to $5.00 a minute. An AI receptionist costs about $0.25 to $0.50 a minute or $0.45 to $3.00 a call. Voicemail is free but makes the caller do the work, and new customers often call the next business instead. Details in AI receptionist vs answering service.

Who should use one

• Owner operators and trades who cannot answer while on a job. See AI receptionists for home services.
• Offices that book appointments, such as dental, medical, salons and law firms.
• Any business that misses calls after hours or at lunch.
• Teams with overflow, where a second ringing line goes to voicemail today.

If you get a handful of calls a week from people who already know you, voicemail may still be enough.

How to pick one

Match the billing unit to your calls (per call for long calls, per minute for short ones), confirm it books into the calendar or software you use on the plan you will buy, and check whether you need a human fallback. Our ranked list with prices is best AI receptionists, and the cheapest ways to try one are in best free AI receptionists.