Quick answer (updated October 2026): NextPhone is the best AI answering service for most small businesses, law firms and professional services firms: flat monthly plans from $199 with unlimited inbound calls, no per-minute charges, answers in under 2 seconds, and 90-95% of calls resolved without a human. The other five AI answering services we compared (Smith.ai, Simple Phones, My AI Front Desk, Phonely and RingCentral AI Receptionist) all meter calls or minutes. And if you are replacing a live answering service, the comparison is not close: Ruby's 200-minute plan is $720 a month, Smith.ai's human receptionists start at $300 for 30 calls (verified September 22, 2026).
This page is for one buyer: you are paying a live answering service, or sending calls to voicemail, and you want to know whether an AI answering service can take over, which one, and what it will really cost in your busiest month. If you are comparing AI receptionists more broadly, our best AI receptionist for small business roundup covers a different set of platforms.
This is the bar. Any AI answering service on your shortlist should sound at least this natural on your own test calls.
AI answering service comparison (October 2026)
Prices checked against each provider's own pricing page on October 5, 2026.
| AI answering service | Best for | Starting price | How it bills | Busiest-month risk |
|---|---|---|---|---|
| NextPhone | Replacing a live service or voicemail at a predictable price | From $199/mo, unlimited inbound calls | Flat monthly | None: same bill every month |
| Smith.ai AI Receptionist | Firms that may want Smith.ai's human team later | Free for 25 calls, then $3.00 a call; $150/month for 75 calls | Per call | $2.17 to $3.00 a call past the plan |
| Simple Phones | Very low call volume, simple answering | From $97/month for 100 calls | Per call | No overage rate published; tiers above 100 calls not listed |
| My AI Front Desk | Owners who also want SMS, chat and some outbound | $99/month for 200 minutes | Per minute | $0.25 a minute past the allowance, in credits |
| Phonely | Short calls, simple message-taking | Free for 100 minutes; $50/month for 200 minutes | Per minute | $0.25 to $0.35 a minute past the plan (the page shows two Starter rates) |
| RingCentral AI Receptionist | Trying AI with a handful of calls, or adding it to a RingCentral phone system | From $49/month for 100 minutes | Per minute | $0.50 a minute, billed in 30-second increments |
NextPhone is the only flat-rate, unlimited-calls AI answering service in this comparison. The other five are honest about their meters, and at low volume a meter can be cheaper. But a meter means you cannot know next month's bill before the month starts, and it charges you most in the months your phone rings most.
Try NextPhone free for 7 days
Flat monthly plans from $199, unlimited inbound calls. Set up in about 5 minutes.
Disclosure: NextPhone is our product. The full method is at the bottom of this page, including what we did not test.
Which AI answering service is right for you
- You pay a live answering service today and want the same coverage for less: NextPhone. Flat monthly plans from $199, unlimited calls, warm transfers to your team, and intake that lands in your CRM.
- You run a law firm and want consults booked and intake in Clio: NextPhone. Native Clio Manage and Clio Grow sync starts on the $299 Growth plan, along with MyCase, Lawmatics and HubSpot. See the law firm page.
- You are a contractor or home-services business with busy seasons: NextPhone, because storm weeks and heat waves should not raise your bill. Jobber, Builder Prime and GoHighLevel connect natively on Growth. See the contractor page.
- You get fewer than 30 calls a month and none of them are urgent: Phonely's free 100 minutes or RingCentral AI Receptionist's standalone plan ($49/month for 100 minutes) are a cheap experiment. Re-run the math the month your volume grows.
- You want AI plus a human-staffed answering service from the same vendor: Smith.ai sells both, at separate prices.
- You want texting, a website chatbot and a few outbound calls bundled in: My AI Front Desk bundles those on its Business-in-a-Box plan ($99/month for 200 minutes), metered by minute.
Whatever you pick, hold it to the minimum bar for 2026: answers in under 2 seconds, 24/7, takes unlimited simultaneous calls, books into your real calendar, transfers to a human with a rule you control, filters spam, and gives you a bill you can predict in your busiest month.
AI answering service vs a live answering service
Most people searching "AI answering service" already pay for, or have priced, a live one. Here is the gap on price, using the same 3-minute average call for every per-minute plan.
| Live answering service | Entry plan | Typical mid plan | Overage |
|---|---|---|---|
| Ruby | $250/month for 50 minutes | $720/month for 200 minutes | $3.65 to $5.40 a minute (help center) |
| Smith.ai (human receptionists) | $300/month for 30 calls | $810/month for 90 calls | $8.50 to $11.50 a call |
| AnswerConnect | Quote only (pricing page is a quote form as of October 5, 2026) | Quote only | Not published |
| Abby | $165/month for 50 minutes | $599/month for 200 minutes | Plan rate, $2.76 to $3.30 a minute |
| PATLive | $99/month for 50 minutes | Up to $1,499/month for 1,000 minutes | $1.69 to $2.29 a minute |
| Posh | $130/month for 50 minutes | $420/month for 200 minutes | $1.90 to $2.20 a minute |
| NextPhone (AI) | From $199/mo, unlimited inbound calls | Same price at any volume | None |
Ruby's overage rates are from its help center; its pricing page shows none. Abby bills overage at the plan rate.
What that means at real volumes, with 3-minute calls:
| Monthly calls | Ruby | Smith.ai (human) | Abby | NextPhone |
|---|---|---|---|---|
| 50 calls (150 min) | $620 | $530 | $493.50 | $199 |
| 150 calls (450 min) | $1,635 | $1,440 | $1,346.50 | $199 |
Each provider's cheapest published plan for that volume, overage included. Abby counts AI-answered minutes at half, so a mixed plan can come in lower.
What you give up by moving to AI: a person on every call. Live receptionists can improvise on a call nobody planned for, and for some firms that is the product. What you gain: an answer in under 2 seconds instead of waiting for the next free agent, unlimited simultaneous calls (a live pool is thinnest at 2am and on storm days), the same script every time, a full transcript and recording of every call, and intake that writes into your tools instead of a message you retype.
The model that works for most businesses is not "AI instead of people." It is AI first, your team behind it, and never voicemail. NextPhone answers every call, resolves 90-95% of them, and warm-transfers the rest to the person you choose with the context already announced. For a deeper look at the human side, see our guide to live answering services and the Ruby vs AI breakdown.
The 6 best AI answering services, reviewed
1. NextPhone: best AI answering service overall
Best for: law firms, professional services and home-services businesses replacing a live answering service or voicemail, where each call has a dollar value.
Pricing: flat monthly plans from $199 with unlimited inbound calls, no per-minute charges, no setup fee, and a 7-day free trial. The Pro plan covers answering, warm transfers, spam filtering, 14 languages and live booking into Google Calendar, Outlook, Cal.com, Calendly, Acuity and OnceHub. CRM integrations, including Clio, start on the $299 Growth plan, where the NextPhone team also builds and tests your agent for you. Current tiers are on the pricing page.
What it does well:
- Speed and capacity. Picks up in under 2 seconds and takes unlimited simultaneous calls, so a surge never hits a busy signal.
- Resolution. 90-95% of calls resolved without a human, with 99% positive caller sentiment across more than 2,000,000 business calls answered. NextPhone has maintained 99.97% uptime.
- Intake that lands somewhere. Native sync with Clio Manage, Clio Grow, HubSpot, MyCase, Lawmatics, GoHighLevel, Follow Up Boss, Builder Prime and Jobber, plus 6,000+ other apps through Zapier.
- Setup in about 5 minutes. Forward your existing number; you keep it, and callers dial the same number they always have.
Where it falls short: $199 is more than the entry tier of every metered service here. If you get 20 calls a month and none after hours, a meter is cheaper. CRM sync is a Growth-plan feature, not a Pro one.
Honest fit: law firms, where a missed intake call is a lost case; professional services like accounting and insurance with seasonal surges; small businesses whose after-hours calls are revenue. If every call is a bespoke consultation, the AI answers, qualifies and transfers; it will not close for you.
The call a voicemail box or an understaffed overnight pool loses: greeting, the caller's name and matter taken, callback number confirmed, callback promised for the morning.
See what NextPhone does with your calls
7-day free trial. Keep your number. Flat monthly plans from $199.
2. Smith.ai AI Receptionist: best if you may want humans later
Best for: firms that want an AI tier now and the option of Smith.ai's human-staffed receptionists from the same vendor.
Pricing: per call. Free for 25 calls a month, then $3.00 a call. The paid AI plan is $150/month for 75 calls, then $2.50 a call; the larger plans are $270/month for 150 calls and $500/month for 300 calls. On-demand human escalation is listed on the 300-call tier. Smith.ai's human receptionists are a separate product: $300/month for 30 calls up to $2,100/month for 300 calls.
What it does well: Smith.ai has run answering services since 2015, the free tier makes a real trial cheap, and Calendly booking and lead qualification are included on every AI plan. The path to human backup exists without switching vendors.
Where it falls short: every call counts against the plan, so ask how spam, robocalls and wrong numbers are counted before you sign. At 300 calls a month you are at $500, and the human product is priced like a live answering service, because it is one.
Honest fit: professional practices with steady, moderate volume who value a single vendor for AI and human answering. See our Smith.ai alternative breakdown for the full comparison.
3. Simple Phones: best for very low volume
Best for: sole operators with a few calls a week who want a basic AI agent that answers, books and takes messages, set up without a sales call.
Pricing: per call. From $97/month for 100 calls, with a 14-day free trial and no commitment (read on Simple Phones' own pricing page, October 5, 2026). Higher tiers and an overage rate are not published on that page.
What it does well: the base agent answers questions, books appointments and leaves messages. Calls can be routed or escalated to other numbers, and texts, emails or webhooks can alert your team. Every call is logged with the caller, duration and a transcript, and you can request changes to the agent on an ongoing basis.
Where it falls short: its own FAQ says that if you exceed your tier's monthly calls, your phone numbers are released until you get started again, so a busy month is a real risk. CRM connections are described as custom work by its team rather than a listed set of integrations.
Honest fit: very low, predictable volume. Once you pass roughly 100 calls a month, compare the real bill, and what happens past the cap, against flat pricing.
4. My AI Front Desk: best bundle of SMS, chat and outbound
Best for: owners who want a phone agent plus texting, a website chatbot and a small amount of outbound calling in one subscription.
Pricing: per minute. $99/month for 200 minutes of voice time ($79/month billed annually), then $0.25 a minute through a credit system (25 credits a minute at $0.01, after 1,000 included overage credits; read October 2026). Higher volumes are custom-priced.
What it does well: a lot is bundled into one plan: chatbot conversations, SMS, up to 20 outbound calls a day, call transfers, appointment booking, a built-in CRM and Zapier. Multilingual, with a 7-day free trial.
Where it falls short: talk time is metered, so long calls cost more than short ones, and the credit model takes a minute to understand before you can forecast a bill.
Honest fit: solo businesses that value the bundle more than predictable pricing, with short calls and moderate volume.
5. Phonely: best for short, simple calls
Best for: businesses whose calls are mostly quick questions and messages, and owners who want to build the agent themselves.
Pricing: per minute. Free for 100 minutes a month. Starter is $50/month for 200 minutes ($33/month billed annually); Professional is $150/month for 650 minutes ($100/month billed annually). The plan cards list overage at $0.25 per minute on Starter and $0.30 on Professional, while the comparison table on the same page shows different Starter figures (250 minutes, $0.35 overage). Read October 5, 2026.
What it does well: a free tier to try it, unlimited concurrent calls on every plan, transcripts and AI analytics plus spam filtering on Starter, and conversational SMS and CRM integrations on Professional.
Where it falls short: CRM integrations start on the Professional plan, and the agent build is self-serve on the Free and Starter plans. Talk time is metered, so long calls cost more than short ones, and the page's own numbers disagree on the Starter allowance and rate, so confirm them before you sign.
Honest fit: simple message-taking at low volume, by an owner comfortable configuring the agent.
6. RingCentral AI Receptionist: best for testing AI with a handful of calls
Best for: businesses that want to find out whether AI answering fits, or that already run RingCentral's phone system.
Pricing: per minute. From $49/month for 100 minutes standalone, or $39/month as an add-on to a RingEX phone plan, also with 100 minutes. Past the included minutes it is $0.50 a minute, billed in 30-second increments, rounded up. 14-day free trial. Read October 5, 2026.
What it does well: works with any phone system, transfers to users, extensions, queues or external numbers, schedules through Google, Outlook or Calendly or by SMS link, logs leads to Salesforce, HubSpot or Zoho, and handles several languages with automatic switching.
Where it falls short: 100 minutes is roughly thirty-three 3-minute calls. Past that, minutes bill at $0.50 a minute, so a good month produces a bigger invoice; at 300 calls a month the bill is $449.
Honest fit: under 30 calls a month while you decide, or a business already on RingCentral.