An AI receptionist costs between $100–$300 per month for an off-the-shelf app, or $2,500–$10,000 as a one-time build for a custom system tailored to your exact call flow, booking process, and industry. The right tier depends on call complexity, not company size.
There are two distinct pricing models for AI receptionists, and understanding the difference is the single most important step in evaluating cost. Generic, off-the-shelf AI receptionist apps like those from major platform vendors cost $100–$300 a month. They handle basic call answering, FAQs, and simple scheduling using a standard script that works adequately for most businesses without customization. A tailored AI receptionist, built around your specific services, pricing, booking software, and intake process, is normally a one-time project priced between $2,500 and $10,000 rather than a monthly subscription. Which tier makes sense depends on how standardized your calls are and what a missed or mishandled call actually costs you. A business with simple, predictable inquiries may find a $200/month app entirely sufficient. A contractor whose calls require qualifying job details and scheduling estimates, or a dental practice that needs to verify insurance before booking, will usually find the custom build pays for itself within the first few calls it captures that otherwise would have gone to voicemail.
Key takeaways
- Generic AI receptionist apps cost $100–$300/month and work out of the box with a standard script.
- A custom-built AI receptionist is typically a one-time project of $2,500–$10,000, not a recurring subscription.
- Within the custom range, complexity — not company size — drives the price: integration depth, number of services covered, and whether it makes outbound calls.
- The break-even math: if missing even 2-3 calls a month costs you jobs worth $500+, a mid-range build covers itself almost immediately.
- Neither tier is automatically better — the key question is how specific your call flow is and what one lost customer is worth.
Generic apps vs. custom builds: what you're actually paying for
Off-the-shelf apps charge monthly because the vendor's cost is ongoing — hosting, support, and maintaining a shared product. You're renting access to software that works for everyone, which is why it costs less up front. Custom builds are priced once because the engineering work is a fixed project: designing the call flow, connecting to your booking or CRM software, testing edge cases, and hardening it for production. Once built, the only ongoing cost is the AI model usage itself, usually well under $100/month.
The practical difference shows up fast. A generic app can answer 'When are you open?' and 'Can I book an appointment?' A custom build can qualify a lead by asking what kind of job, what address, how urgent, check your live calendar, book into the right time slot, and text you a summary — because it was built around how your business actually operates.
How to know which tier you need
If your calls are standardized — people mostly want hours, directions, or basic bookings — an off-the-shelf app at $100–300/month typically handles 80%+ of volume without issue. The monthly cost is predictable and you can start immediately.
If your calls involve qualifying questions, urgent triage, or specifics about your services, pricing, and availability that change by job type, a custom build usually makes more sense. The upfront cost is higher but there's no monthly subscription, and the system is tailored to actually convert callers rather than just take messages.
A useful test: write down the last five missed calls you wish you'd answered. If an AI with a generic script could've handled them, go off-the-shelf. If they needed specific knowledge about your business, custom is the better path.
Answered by Alex Rivera, Founder · Updated August 31, 2026