The hidden costs of AI receptionists
Five of the prices in this market are not prices. They are entry points that require something else to work: another subscription, a language model bill, a phone number, a second plan, or minutes the cheap tier does not contain. This page names each one and shows what the real number is.
The five to watch: Vapi at $0.05 a minute is platform margin only. Retell's $0.07 is the cheapest configuration that exists. Jobber's $29 needs a Jobber subscription. My AI Front Desk's $20 plan answers no calls. Bland's $299 platform fee earns nothing until roughly 14,950 minutes a month.
Which advertised price is actually the price?
Two kinds of company sell voice AI and they quote prices in incompatible ways. A finished product, like Rosie or Answrr, quotes an all-in monthly figure including every component. A developer platform quotes its own slice and leaves the rest to you. Put the same 1,000 minutes a month through three platforms and the ranking inverts.
| Platform | Headline rate | Headline at 1,000 min | What the rate leaves out | Realistic at 1,000 min |
|---|---|---|---|---|
| Vapi Build | $0.05/min | $50 | Speech to text, the language model, the voice, your telephony | $130 to $310 |
| Retell pay as you go | $0.07/min | $70 | A usable voice, a capable model, the phone number at $10 a month | $265 |
| Bland Start | $0.14/min | $140 | Nothing. The rate covers model, transcription and voice | $140 |
The platform with the highest advertised rate is the cheapest one to actually run at this volume, and it is not close. Bland's all-in $0.14 a minute comes to $140 a month, which beats Retell's realistic $265 by $125 and sits at the bottom of Vapi's realistic range. If you compare headline numbers you will pick the worst option available.
What is missing from a $0.05 a minute rate?
Vapi's own pricing page answers this plainly if you read the whole thing. The $0.05 covers Vapi.
Speech to text, the language model and the voice are billed At cost
, with zero markup if you bring your own API
keys, which means the bills arrive from three other companies. Your telephony is separate again. That is why the
realistic all-in figure sits between $0.13 and $0.31 a minute, which is
2.6 to 6.2 times the number on the page.
There is a second layer. Ten concurrent lines are included and each extra line is $10 a month, so a business that takes twenty-five simultaneous calls adds $150 a month before a word is spoken. HIPAA compliance costs $2,000 a month, which quietly rules the platform out for most small medical and dental practices. None of this makes Vapi a bad product for an engineering team. It makes the advertised rate useless for budgeting.
Why is Retell's $0.07 not the number you will pay?
Because it is the floor of a range their own page states as $0.07 to $0.31 a minute, and the floor assumes the cheapest voice, the cheapest model and no extras. Build something a customer would tolerate and the components stack up: the voice engine at $0.055 a minute, an ElevenLabs voice at $0.04, and a model capable of holding a real conversation. That lands near $0.255 a minute, or 3.6 times the advertised figure.
Then the fixed costs. A phone number is $10 a month. Concurrency is free to twenty lines and $8 per line per month above that. A knowledge base, personal data removal and call quality checks are each billed per minute on top. At 1,000 minutes a month, the $70 you budgeted becomes $265 before you have added a single one of those features.
When does a platform fee actually pay for itself?
Bland is the honest one in this group, so it makes the best worked example. Their Start plan has no platform fee, no credit card and an all-in $0.14 a minute. Build costs $299 a month and drops the rate to $0.12. Scale costs $499 and drops it to $0.11. The fee only makes sense once the saving per minute repays it.
| Move | You save per minute | Fee pays for itself at |
|---|---|---|
| Start to Build ($299 a month) | $0.02 | 14,950 minutes a month |
| Start to Scale ($499 a month) | $0.03 | 16,633 minutes a month |
| Build to Scale (extra $200) | $0.01 | 20,000 minutes a month |
A small business will never reach 14,950 minutes a month. That is over 240 hours of talking. So the correct plan for almost everyone reading this is the free one, and paying the fee to get a lower rate is a cost with no return. Platform fees are not a scam, they are a volume instrument, and most buyers do not have the volume.
What does a $29 add-on really cost?
Jobber advertises its AI Receptionist at $29 a month, which would make it the cheapest full-service answering product in this market. It is an add-on. You also need a Jobber subscription, and the entry plan is $49 a month, so the real starting cost is $78 a month. On annual prepaid the first year works out at $50 a month. The receptionist is included at no extra cost on the Plus plan, which is $499 a month.
The bigger gap is not the price, it is the absence of one. Jobber does not publish how many calls or minutes the add-on covers, and does not publish an overage rate. Every other product on this site tells you where the ceiling is. If you already run Jobber the maths is easy and the integration is worth real money. If you do not, this is a $78 product wearing a $29 price tag.
Why does the cheapest plan on the page answer no calls?
My AI Front Desk Basic is $20 a month, the lowest number in our whole data set, and it contains
0 voice minutes. In their own words the plan covers email, SMS and chat only, no phone answering
. The first tier
that answers a telephone is Business-in-a-Box at $99 with 200 voice minutes, so the honest entry
price is $79 a month higher than the one that gets quoted, or
$948 a year.
There is a second thing to convert. My AI Front Desk bills a credit pool rather than minutes: voice costs 25 credits a minute and a $10 auto-reload buys 1,000 credits. Divide it out and a voice minute is about $0.25. Run 200 minutes past the plan allowance and that is $50 on top of the $99 subscription. Credit pools are not dishonest, but they need arithmetic before you can compare them with a minute bundle.
What do the add-ons cost?
Language, booking, setup, seats and locations. Each one is small on its own and they are where a comfortable budget turns into an uncomfortable invoice. These are the ones we could verify from published pages.
| Add-on | Who charges it | What it costs |
|---|---|---|
| Spanish or bilingual | AnswerConnect, PATLive, Slang.ai, Smith.ai | $30 and $20 a month, $99 a month at Slang.ai, $1.00 a call on Smith.ai human plans. Free on Smith.ai AI plans, Ruby and Abby Connect. |
| Appointment booking | Smith.ai, Rosie | $1.50 a call at Smith.ai, so $135 a month on a 90 calls plan. At Rosie it is gated behind the $149 tier instead. |
| Setup fee | AnswerConnect | $49.99 one time on the entry plan, waived on Growth. Their own pricing PDF contradicts itself on this, so get it confirmed in writing. |
| Concurrent lines | Vapi, Retell | $10 per line per month above ten at Vapi, $8 per line above twenty at Retell. |
| Per location | Slang.ai | $399 a month each, so 4 restaurants is $1,596 a month, or $19,152 a year. |
| Required base subscription | Jobber, Nextiva | $49 a month at Jobber. At Nextiva the phone plan is $15 per user, so 5 users plus XBert is $174 a month. |
| HIPAA compliance | Vapi | $2,000 a month, or $24,000 a year. Ruby bundles HIPAA handling into its normal service, and Retell puts a BAA on its Enterprise tier. |
Smith.ai deserves one more line because its add-ons compound with volume rather than sitting flat. Booking at $1.50 a call and Spanish at $1.00 a call on a 90 calls plan is $225 a month on top of $810, which is 28% more. Both are included in the base price on their AI plans.
Which published prices are simply out of date?
Synthflow is the clearest case. It used to sell plans from $29 to $449 a month to small businesses. Those tiers are gone. Their pricing page now shows Enterprise only, starting at $30,000 a year, which is $2,500 a month. Any article still quoting Synthflow at $29 a month is describing a product that no longer exists, and there are a lot of them.
This is the reason we date every price on this site and quote the vendor's exact wording. Nexa publishes plan sizes with no prices attached, Podium publishes nothing at all for its base plans or its AI add-on, and Simple Phones publishes its price table as an image, which is why third-party estimates for these three disagree with each other by hundreds of dollars a month. When a number has no date attached, treat it as a claim rather than a fact.
What to ask before you sign
- Does the rate include the model, transcription and the voice? On developer platforms it usually does not, and that is the difference between $0.05 and $0.31.
- Does this price require another subscription? Jobber and Nextiva both sell a receptionist that needs a base plan underneath it.
- Does the cheapest plan include any voice minutes at all? At My AI Front Desk the answer is no.
- Is the platform fee earning its keep at my volume? Bland's pays back at 14,950 minutes a month, which almost no small business reaches.
- What is priced per location, per user, per agent or per call? Slang.ai is per location, Nextiva per user, Goodcall per agent, Smith.ai per call.
- What is the overage rate, in writing? Ruby, Abby Connect and Jobber do not publish one.
- When was the price I am reading last checked? Synthflow's small business plans vanished and half the internet has not noticed.
If you want a price with nothing behind it
Answrr publishes one rate per tier with every feature included on every plan, and runs a 14-day trial with 60 minutes and no credit card, so the bill you model is the bill you get. Bland is the platform equivalent: an all-in $0.14 a minute with no platform fee on the free tier.
Check Answrr pricing Check Bland pricing
Some links here are affiliate links. Bland pays us nothing and is named as the honest one on this page anyway.
Where to go next
Frequently asked questions
Why is the advertised per-minute price of a voice AI platform so low?
Because on the developer platforms it is only the platform's own margin. Vapi advertises $0.05 a minute and bills speech to text, the language model, the voice and your telephony separately, so the realistic all-in figure lands between $0.13 and $0.31, or 2.6 to 6.2 times the headline. Products sold to end users, like Rosie or Answrr, quote all-in prices instead, so the two types of price are not comparable.
Is the cheapest AI receptionist plan ever the cheapest option?
Rarely. My AI Front Desk Basic at $20 a month is the lowest published price in our whole data set and it answers no phone calls: it covers email, SMS and chat. Voice starts at $99 for 200 voice minutes, which is $948 more a year than the headline suggests. Jobber's $29 receptionist is the same shape, because it requires a Jobber subscription on top.
When is a platform fee worth paying?
Only at volume, and you can calculate it exactly. Bland charges no platform fee on Start at $0.14 a minute, $299 a month for $0.12, and $499 for $0.11. The Build fee only pays for itself at about 14,950 minutes a month. Below that, the free plan is cheaper despite the higher rate.
What add-ons should I check before signing?
Language, booking, setup, concurrency and anything priced per location or per user. Spanish is $30 a month at AnswerConnect, $20 at PATLive, $99 at Slang.ai, $1.00 a call on Smith.ai's human plans and free on its AI plans. Appointment booking is $1.50 a call at Smith.ai. AnswerConnect charges a $49.99 one-time setup on its entry plan. Vapi charges $2,000 a month for HIPAA and $10 a month per concurrent line above ten.
Prices come from vendor pricing pages and change without notice. Confirm the current price with the vendor before buying.