AI Receptionist vs Answering Service: Cost Compared

An AI receptionist typically costs a fraction of a live answering service per minute. Using published prices checked October 1, 2026, Ruby's live receptionist plans work out to roughly $3.45 to $5.00 per included minute, while AI options range from about $0.25 per minute (Callata's prepaid AI minutes) to $0.49 to $0.50 per minute (RingCentral's AI Receptionist). The trade-off is that human receptionists handle nuance and exceptions better.

Below are the published numbers, the math at different call volumes, and the costs that don't show up on pricing pages.

Published prices (checked October 1, 2026)

Live answering services

Service	Plan	Monthly price	Included	Effective rate
Ruby	Starter	$250	50 minutes	$5.00/min
Ruby	Small Business	$395	100 minutes	$3.95/min
Ruby	Standard	$720	200 minutes	$3.60/min
Ruby	Growing Business	$1,725	500 minutes	$3.45/min
Smith.ai	Starter	$300	30 calls	$10.00/call ($11.50 overage)
Smith.ai	Basic	$810	90 calls	$9.00/call ($10.50 overage)
Smith.ai	Pro	$2,100	300 calls	$7.00/call ($8.50 overage)

Smith.ai's pricing page lists the same plans whether you choose its AI-first or human-first approach.

AI receptionists

Service	Price	Included	Overage
RingCentral AI Receptionist (standalone)	$49/month	100 minutes	$0.50/min, billed in 30-second increments
RingCentral AI Receptionist (RingEX add-on)	$39/month	100 minutes	$0.50/min
Ooma AI Productivity Agent Bundle	From $15/month per account license	Up to 1,250 calls and/or actions	Additional tiers; requires Ooma Office Pro Plus
Callata AI Workforce	$0.25/min prepaid (60, 250 or 1,000-minute packs)	Pay as you go	None; agents pause at zero

Callata's AI minutes sit on top of the Callata Office plan, $99 per month for five users ($20 per additional user), which covers calling, texting and voicemail.

Prices exclude taxes and fees and change often. Recheck each vendor before you buy.

Worked examples

Assume an average handled call of 3 minutes. That's an assumption, not a benchmark; your number may differ, and estimating AI minutes shows how to measure it.

40 calls a month (120 minutes)

Option	Approximate monthly cost
Ruby Small Business (100 min) + overage	Above $395 (overage rate not published)
Ruby Standard (200 min)	$720
Smith.ai Basic (90 calls)	$810
RingCentral AIR standalone	$49 + 20 × $0.50 = $59
Callata AI minutes	120 × $0.25 = $30

150 calls a month (450 minutes)

Option	Approximate monthly cost
Ruby Growing Business (500 min)	$1,725
Smith.ai Pro (300 calls)	$2,100
RingCentral AIR standalone	$49 + 350 × $0.50 = $224
Callata AI minutes	450 × $0.25 = $112.50

The gap is large. It narrows only when calls need skills an AI agent can't provide reliably.

Costs that don't appear on pricing pages

For live services:

• Setup and onboarding time spent writing call-handling instructions
• How billable minutes are rounded (per second, per 30 seconds, per minute)
• Whether hold time, transfers and spam calls count
• Bilingual or after-hours surcharges, if any

For AI receptionists:

• Your time writing instructions and facts, and reviewing calls
• The cost of a wrong answer if facts are incomplete
• Telephony or base plan fees on top of AI usage
• Minimum commitments or monthly bundles you might not use

What you get for the extra money with humans

A trained receptionist can:

• Calm an upset caller and read tone
• Handle a request that doesn't fit any script
• Use judgment about urgency
• Recognize a regular caller's voice

AI agents are getting better, but they're still weakest exactly where humans are strongest. See limits of AI phone agents.

A decision checklist

• Count your monthly calls and average length for two weeks
• Split calls into routine (hours, directions, simple quotes) and complex
• Estimate the value of a missed new-customer call
• Price both options at your actual volume, not the plan's headline
• Check rounding, overage and spam-call policies
• Decide which calls must reach a human and how the transfer works
• Plan a 30-day trial with weekly reviews

If most calls are routine, AI usually wins on cost. If most are complex, emotional or high-stakes, a human service or your own staff may be worth the premium, with AI only after hours.

A hybrid that often makes sense

• AI answers after hours and overflow, takes messages, and handles FAQs
• Your team handles business-hours calls and anything the AI transfers
• A live service, if you keep one, handles a narrow set of high-value calls

See AI receptionist pricing models to understand per-minute vs per-call billing, and AI receptionist ROI to weigh cost against recovered business.

Matching the service to the call

Rather than picking one provider for every call, sort calls by what they need:

Call type	What it needs	Cheapest adequate option
Hours, location, "do you do X?"	Accurate facts	AI agent
New-customer inquiry	Fast answer, contact capture	AI agent with transfer
Appointment request	Name, time preference, confirmation	AI agent; staff confirm
Upset existing customer	Empathy, authority	Your team or a live receptionist
Legal or medical intake with sensitive details	Training, confidentiality controls	Your team or a specialized live service
Emergency dispatch	Speed and judgment	On-call person; AI only to route fast

Most small businesses find that the first three rows make up the majority of calls they miss.

How to run a fair trial

If you're switching from a live service to AI, or adding AI alongside one, test both on the same calls:

1. Pick a two-week window with typical volume.
2. Route after-hours calls to AI and keep business hours as they are.
3. Read every AI conversation and every live-service message.
4. Score each on: correct information, complete contact details, correct next step, and caller frustration (hang-ups, repeated requests for a person).
5. Compare cost per handled call, not cost per month.

A live service that costs ten times more but loses no calls may still be worth it for your highest-value line. An AI that handles most routine calls correctly lets you keep the human service only where it earns its price.

Questions to ask a live answering service

• How are minutes rounded, and does hold time count?
• What happens during peak times when agents are busy?
• Can they transfer to your cell, and what if you don't answer?
• How quickly do messages reach you, and in what format?
• Do they charge for spam, wrong numbers or hang-ups?

Callata's pricing in one paragraph

Callata Office is $99 per month with five users included ($20 per additional user), up to three local numbers, unlimited inbound calling, a pooled allowance of 1,500 outbound US and Canada minutes per user per month (then $0.01 per minute), texting after carrier registration ($49 one-time), voicemail transcription, call recording with AI summaries and E911. AI agents are optional and billed from prepaid minutes at $0.25 per minute of talk time; each AI text reply uses a quarter minute. Minute packs come in 60, 250 and 1,000 minutes. Agents pause at zero balance and calls go to voicemail, so you never get a surprise overage. Start with Callata.