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In short
- The real cost is platform fee plus per-minute usage, not just the number on the pricing page.
- A "contact sales" button on an AI receptionist site usually means the usage rate is the part being hidden.
- GoHighLevel Voice AI publishes its formula: roughly $0.163 per minute blended, on top of a $97 to $497 base plan.
What actually determines AI receptionist cost?
Three things move the bill: the platform fee, the per-minute or per-call usage rate, and the phone number itself. Most vendor pricing pages show only the first one, if that.
The platform fee buys the software. The usage rate is where the real spending happens once the agent starts answering calls for real. A slow month costs almost nothing. A busy month with hundreds of calls can add up to several times the number you saw advertised.
The honest breakdown: four cost lines, not one
This is the structure to ask any vendor for, whether or not they volunteer it. It applies the same way whether you buy an AI receptionist as its own product or use one built into a platform like GoHighLevel.
| Cost line | What it covers | Where it hides |
|---|---|---|
| Platform fee | Software access, the CRM or dashboard, and support. | Usually the one number shown on the pricing page. |
| Per-minute usage | Every minute the AI spends talking, listening, or on hold. | The line most often pushed to a "contact sales" call. |
| Phone number rental | A dedicated business number for the receptionist to answer on. | Sometimes bundled into the plan, sometimes a separate charge. |
| Overage and add-ons | Call recording, transcription, CRM sync, after-hours routing. | Sometimes included, sometimes billed as extras once you sign. |
Why vendors route pricing to "contact sales"
A flat platform fee is easy to publish and easy to compare. A per-minute usage rate is not, because it depends on your call volume, average call length, and how the underlying voice and AI model costs are blended together. That complexity is a convenient place to hide a markup.
The honest version of the differentiator is simple: ask for the per-minute rate in writing before you sign, and run your own expected call volume through it. If a vendor will not give you that number without a sales call, assume the usage line is where the real cost lives.
What GoHighLevel Voice AI actually costs
GoHighLevel is the one example in this piece with a public, checkable rate, so it is worth working through as a source instead of a guess.
The base plan runs $97 a month (Starter), $297 a month (Unlimited), or $497 a month (Pro), which is the CRM and platform fee you would likely need anyway. Voice AI usage sits on top, billed by the formula minutes times the Voice Engine rate, plus text-to-speech, plus AI model tokens. When you do not know your token usage, a blended estimate of about $0.163 per minute is a workable stand-in (rates checked May 31, 2026, against GoHighLevel's public Voice AI billing notes).
Worked example: a Starter plan running 200 calls a month at an average of 3 minutes each is 600 minutes of usage, about $98 in Voice AI cost, plus the $97 base plan. Total: roughly $195 a month, before a phone number, which runs about $1.15 to $2.25 a month on GoHighLevel.
That worked number will move with your own call volume and average call length. Nothing here is a quote, and it is not the whole market, only the one vendor with a formula published instead of a sales form.
How to estimate your own real number
Start with your expected call volume and average call length, not the plan price. Those two inputs decide most of the bill.
Use the
to plug in your own numbers and see a per-call and monthly estimate side by side with the base plan cost.
How to keep the real cost down
Route only the calls that need a live conversation to the AI receptionist. Simple lookups (hours, address, directions) can be handled by a website chat widget or an FAQ page instead of billed minutes.
Keep the agent's prompt tight so calls end when the job is done instead of running long. Average call length is one of the two numbers that drive the whole bill.
Pick a plan and usage model billed strictly by the minute, with no separate per-seat minimum, so a quiet month costs close to nothing instead of a flat fee regardless of volume.