AI receptionist vs answering service vs a human receptionist
What each one really costs, what each does best, and a worked example for 300 calls a month.
Every missed call is a customer who might call your competitor next. So you have three choices: hire a receptionist, pay an answering service, or put an AI voice agent on the phone. Each one answers the phone. They differ in cost, hours, how much they can actually do, and how they feel to the caller.
Here is how the three compare on real numbers.
The quick comparison
| Human receptionist | Live answering service | AI voice agent | |
|---|---|---|---|
| Typical cost | About $38,000 a year in wages, before taxes and benefits | About $250 to $810 a month for 30 to 100 calls or 50 to 200 minutes | Platform usage of about $0.10 to $0.15 a minute, plus setup |
| Hours | Office hours | 24/7 | 24/7 |
| Calls at once | One | Several, shared with other clients | Many (20 or more on common platforms) |
| Books appointments | Yes | Often an extra fee per booking | Yes, directly into your calendar |
| Knows your business deeply | Yes | Basic script | As deep as its training and tools |
| Best at | Relationships, judgment calls | Overflow and after-hours messages | Volume, speed, booking, follow-up |
What each option really costs
A human receptionist. The median pay for receptionists in the US was $38,010 a year ($18.27 an hour) in May 2025, according to the Bureau of Labor Statistics. Add payroll taxes, benefits, holidays, sick days and cover for breaks, and the true cost is noticeably higher. You get about 40 hours a week of coverage.
A live answering service. Prices are set per call or per minute. For example, Smith.ai lists human receptionist plans from $300 a month for 30 calls up to $2,100 for 300 calls, with appointment booking at $1.50 per call extra. Ruby lists plans from $250 a month for 50 minutes up to $1,725 for 500 minutes. That works out to roughly $3 to $10 per call.
An AI voice agent. Platforms such as Retell and Vapi charge by the minute. At typical settings that is around $0.10 to $0.15 a minute all-in (see our Vapi vs Retell vs Bland comparison). A 3-minute call costs well under a dollar. The bigger cost is building and maintaining the agent: the script, the calendar and CRM connections, and testing.
A worked example: 300 calls a month
Say you get about 300 calls a month, averaging 3 minutes each.
| How we worked it out | Estimated monthly cost | |
|---|---|---|
| Human receptionist | $38,010 median yearly wage divided by 12, before taxes and benefits | About $3,170, office hours only |
| Answering service (per call) | A 300-call plan at $2,100, plus booking fees | About $2,100 or more |
| Answering service (per minute) | 900 minutes; Ruby's 500-minute plan is $1,725, so you would need a larger plan | About $1,725 for the first 500 minutes, more above that |
| AI voice agent | 900 minutes at about $0.10 to $0.15 | About $90 to $135 in usage, plus setup and upkeep |
These are estimates from published prices, not quotes. The point is the shape: human and answering-service costs grow with every call, while AI usage costs stay small, so the decision comes down to quality and setup, not the per-call price.
Where a human still wins
- Complex or emotional calls. Complaints, sensitive health or legal matters, and negotiations need a person.
- Relationships. Regular clients who like to chat with someone they know.
- In-person work. Greeting visitors, handling deliveries and the many small jobs a front desk does.
Where an answering service fits
- After-hours and overflow messages when you are not ready to automate.
- Businesses that want a person on every call but cannot staff 24/7.
- Watch the extras: booking, transfers and intake questions are often charged separately.
Where an AI voice agent wins
- Every call answered, instantly, 24/7, including when five people call at once.
- Booking straight into your calendar and updating your CRM while on the call.
- Speed to lead: calling back web leads within a minute, which human teams rarely manage.
- Consistent answers about prices, hours and services, every time.
It needs care: a clear script, tested answers to common questions, a rule for when to hand over to a person, and telling callers they are speaking with an AI assistant.
How to choose, step by step
1. Count your calls
Pull a month of call logs. Note how many calls you get, when they come in, and how many go unanswered. Our free revenue leak quiz shows where those calls and leads are slipping away.
2. Sort the calls by type
Most businesses find that the majority of calls are the same few questions: hours, prices, availability, booking, directions. Those are ideal for AI.
3. Decide what must reach a person
Write down the calls that always need a human, such as complaints, emergencies and big deals. These become the hand-off rules.
4. Price the options with your own numbers
Use the tables above with your call count and minutes. Include booking fees and after-hours coverage.
5. Start with a pilot
Run AI on after-hours calls or overflow for a month, listen to the recordings, then expand.
Common mistakes
- Comparing salary to software alone. A fair comparison includes hours covered, missed calls and the cost of setup.
- Letting AI handle everything on day one. Start with the common calls, then widen what it handles.
- No easy route to a person. Callers who ask for a human should reach one quickly.
- Not telling callers it is AI. Be upfront. It builds trust and keeps you on the right side of the rules.
- Setting it and forgetting it. Review calls weekly at first and update the answers.
FAQ
Is an AI receptionist cheaper than an answering service?
In usage cost, almost always: a few cents a minute compared with several dollars a call. The real comparison should include setup and upkeep, which an agency or your own team handles, but at a few hundred calls a month AI usually costs far less.
Can an AI receptionist replace my front desk?
It can take most phone work off their plate, especially after hours and at busy times. Most businesses keep a person for in-person work and for calls that need judgment, and let AI handle the volume.
Will customers be annoyed by an AI on the phone?
Customers are mostly annoyed by voicemail and hold music. A fast, polite AI that answers the question or books the appointment, and passes them to a person when needed, is usually a better experience than not getting through.
Can AI take messages and send them to me?
Yes. It can text or email you a summary of every call, log it in your CRM, and flag urgent ones.
Is it legal to use AI on business calls?
Answering inbound calls with AI is common and legal when you are transparent. Outbound AI calls in the US come with consent rules, so read our calling compliance guide first.
Final verdict
If your phone mostly rings during office hours and calls need a personal touch, a receptionist is still worth it. If you want a person on every call around the clock and volumes are low, an answering service works. If you lose calls after hours or at busy times, or want every lead booked fast, an AI voice agent covers far more for far less, and works best alongside a person who takes the tricky calls.
Want an AI receptionist set up for you?
We build AI voice agents that answer every call, book appointments and hand off to your team when it matters, plus AI lead follow-up for web leads. Book a free strategy call and we will map your calls and show you what to automate first.
Not sure which one fits your business?
We build automations on all of these every week. Tell us what you want to automate and we will tell you which tool, what it costs, and whether it is worth doing.
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