Anywhere from $29 a month to $7,500 a month — and the sticker price is the least useful number in the decision. Here is the full 2026 market, with real vendors, real prices, and the hidden costs nobody puts on a pricing page.
Published June 9, 2026 · Updated October 7, 2026 · 11 min read · By the Media Spearhead AI team
AI voice agent pricing in 2026 runs from $29 to $2,500+ per month, depending on who does the work. DIY software costs $29–$99/mo plus usage — but you build and maintain it. Mid-market SaaS costs $300–$500/mo with industry templates. A fully custom, built-and-operated agent starts at $800/mo and replaces the maintenance burden entirely. Here is each tier:
DIY platforms: $29–$99/mo plus per-minute fees. You build it, you run it, you fix it.
Mid-market SaaS: $300–$500/mo. Templated for your industry. You still maintain it.
Enterprise platforms: custom quotes, typically four figures monthly plus implementation. Built for multi-location operators and franchises.
Custom built-and-operated: from $800/mo. A team builds the agent on your real calls, integrates it with your systems, and operates it. This is our model.
Synthflow, Vapi, and Retell are the names you will see most. Synthflow starts around $29/mo on its entry plan. Vapi and Retell are developer-first platforms that bill primarily per minute — roughly 5–15 cents for the platform, before you add the voice model, the language model, and the phone number.
These tools are genuinely good. The voice quality in 2026 is excellent across all three. What they sell is infrastructure, not a finished receptionist. You write the prompts. You design the call flow. You wire the calendar integration. You test the edge cases — and a plumbing company's phone line is nothing but edge cases.
Realistic setup time for a working, calendar-connected agent: 20–40 hours for a non-technical owner. We wrote a full breakdown of who these platforms fit in our guide to Synthflow alternatives.
Who this tier fits: businesses under $500K revenue, solo operators, and anyone who likes building things. If that is you, stop reading and go set one up. It will beat voicemail by a mile.
This tier sells a pre-built agent for your industry. Sameday targets home services at $349/mo. ServiceAgent plays in the same space with similar pricing. Both come with industry templates — HVAC scripts, plumbing scripts, basic scheduling links — so setup drops from 40 hours to a few.
The trade is flexibility. Templates fit the 70% of your calls that look like everyone else's calls. The other 30% — your membership pricing, your two-truck Saturday rule, your insurance pre-screen — either gets forced into the template or handled badly. That 30% is usually where the high-value calls live.
The other trade is ownership of maintenance. When you change prices, add a service, or switch from one field-service platform to another, you update the agent. Or it quietly gives callers last quarter's answers. We compared the options in detail in our Sameday alternatives and ServiceAgent alternatives guides.
Who this tier fits: $500K–$1.5M businesses with standard call flows and someone on staff willing to own the tool.
Avoca is the clearest example. After raising $125M, it has moved decisively upmarket — multi-location home-service brands, private-equity rollups, franchises with call centers to replace. Pricing is quote-based and the implementation process assumes you have an ops team to run it.
If you operate 15 locations, this tier deserves a serious look. If you run a single-location $3M business, you will pay for capability you cannot use and get the attention a small account gets. Our Avoca alternatives guide covers the right-sizing question in depth.
This is our model, so read this section knowing we are biased. The structure: a team studies 50+ of your real calls, builds an AI voice agent around your actual business logic, integrates it directly with your CRM and scheduler — ServiceTitan, Jobber, Housecall Pro, Dentrix, Open Dental, GoHighLevel — and then operates it. Every call the agent handles feeds straight into your lead-management pipeline, so bookings, follow-ups, and no-shows are tracked in one place instead of scattered across inboxes. Weekly call reviews. Updates within 24 hours when your business changes. A human accountable for performance.
Our pricing: $800/mo (Agent Essential, one agent on one channel), $1,500/mo (Agent Pro, two agents — most popular), $2,500/mo (Agent Team, three agents), with custom Agent Workforce scopes for multi-location complexity. Minimum terms are 6 or 12 months depending on plan. The setup fee ($1,500–$3,500) covers discovery and an AI roadmap.
Is that 15x the price of Synthflow? Yes. The question is what you are comparing. Against software, custom looks expensive. Against a $42K/yr receptionist who covers 40 of the week's 168 hours, or against the missed-call revenue a typical $5M local business loses every year, it looks cheap. The honest full comparison is in our custom AI vs SaaS voice agent breakdown.
The full three-way breakdown — including where humans genuinely still win — is in our AI receptionist vs. answering service comparison.
Run your numbers through our free missed-call calculator first. If the revenue you are losing to unanswered calls is smaller than $800 a month, do not hire us — a SaaS tool will do. If it is bigger, let's talk.
Under $500K revenue: buy SaaS. Not us. Synthflow if you want cheap and are willing to tinker. Sameday or ServiceAgent if you want a home-services template working this week. Our retainers start at $800/mo, and at your call volume that math does not work yet. Come back when it does.
$500K–$1M: mid-market SaaS, with eyes open. Budget the subscription plus 5–10 hours a month of maintenance. Assign the tool an owner on your team, or it will rot. Re-run the math every six months.
$1M–$5M: this is where custom starts winning. At this size you typically take 30–80 calls a day, and the missed-call math turns brutal — a single recovered emergency call can cover the monthly fee. An HVAC or plumbing company at $3M loses more to one bad after-hours weekend than custom costs in a month.
$5M–$20M: built-and-operated, almost without exception. Your call flows have real complexity — multiple trucks, multiple insurances, multiple locations. Template tools force your business to fit them. A dental or medical practice at this scale also has compliance stakes a generic bot should not be trusted with.
Over $20M: evaluate enterprise platforms like Avoca alongside custom, and consider whether an in-house build makes sense. At that scale you can afford the engineers. Most operators below it cannot, and should not try.
It depends on who does the work. DIY platforms like Synthflow, Vapi, and Retell start at $29–$99/mo plus per-minute fees — but you build and maintain everything. Mid-market SaaS like Sameday ($349/mo) and ServiceAgent runs $300–$500/mo with templated setups. Custom built-and-operated systems start at $800/mo and include a team that builds, integrates, monitors, and fixes the agent for you.
Yes. The subscription is the smallest line item. Add per-minute telephony and model fees (often 7–25 cents per minute), 20–40 hours of setup time, ongoing prompt maintenance every time your prices or hours change, and integration breakage when your CRM or scheduler updates its API. On a $99/mo plan, the true first-year cost is usually several thousand dollars in time and patches.
If you do under $500K in revenue and you or someone on your team enjoys tinkering, yes — start there. Synthflow or Sameday will answer calls far better than voicemail. The cheap tiers break down when call volume grows, when your booking logic has exceptions, or when nobody has time to fix the agent when it drifts.
Because the price covers operations, not just software. A custom agent is trained on your real calls, integrated directly with your CRM and scheduler, monitored weekly by humans, and updated whenever your business changes. You are paying for the absence of the 20 hours a month a SaaS tool quietly demands from you — and for someone else to own the 2am failure.
A full-time receptionist costs $42,000–$55,000 a year plus benefits, and covers about 40 of the 168 hours in a week. A custom built-and-operated AI agent at $800–$2,500/mo covers all 168 hours and books directly into your calendar. If your question is really "AI vs an answering service," we wrote that one up separately: AI receptionist vs answering service.
Under $500K revenue: SaaS — Synthflow, Sameday, or ServiceAgent. $500K–$1M: mid-market SaaS plus 5–10 hours a month of internal maintenance. $1M–$20M: custom built-and-operated usually wins, because your missed-call losses outweigh the price difference. Over $20M: evaluate enterprise platforms like Avoca or an in-house build.
30 minutes. We look at your call volume, your stack, and your revenue band — then tell you straight which tier to buy, even when the answer is not us. If a $349/mo tool is your right answer, you will leave the call knowing which one.