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Free AI receptionist: what's really free
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One vendor in our data runs an AI receptionist that costs nothing and does not expire: Smith.ai, up to 25 calls. Everything else that gets called "free" is a time-boxed trial or a starter credit that eventually needs a card. All three are useful. None of them are the same offer, and vendors blur the line on purpose.
Short answer: Smith.ai is the only ongoing free tier we could verify. Upfirst and Answrr are the only no-card free trials, and only Upfirst states how long its trial runs. Retell AI publishes an exact starter credit ($10); Vapi offers one too but will not say how much until you sign up. Verified October 2026 against vendor pricing pages.
What do vendors actually mean by "free"?
Free tier
Runs forever, capped by usage rather than days. Only Smith.ai does this among vendors we could verify: 25 calls at $0, then $3.00 a call.
Free trial
Runs for a set number of days, then asks you to pay or stop. Upfirst and Answrr are the only ones that state no card is needed to start. The rest do not say either way.
Starter credits
A dollar balance you use at your own pace, aimed at developers on usage-priced platforms. Retell AI publishes $10. Vapi offers credits without stating the amount.
Which plan is actually free?
Smith.ai AI Receptionist Free covers 25 calls at $0 a month, then $3.00 per call above that. Nothing about it expires. It does not ask for a card to start, because it is a standing plan, not a trial of one. For a business that gets a genuinely small number of calls, that is a real, permanent way to have an AI receptionist for nothing. Past 25 calls a month, the per-call rate starts adding up fast enough that it stops being the cheap option, and that is exactly where Smith.ai's own paid AI tiers begin.
Which AI receptionist has a free trial with no credit card?
Two, and they say it plainly. Upfirst: 14-day free trial, full access to the plan you pick, no credit card required. Its FAQ adds that you can forward real calls during the trial, and booking, transfers and in-call texting are listed on every plan, so the trial is the real product. Answrr: free trial, no credit card required (length not stated on its pricing page). Their pricing page describes the trial as "free trial, no credit card required". Every plan on Answrr includes every feature, so what you see in the trial is the real product, not a stripped demo version of it.
One more no-card option exists, but it is built for a different buyer. Bland AI's Start plan needs no credit card either, and its pricing page confirms it: no platform fee, no card, inbound number included. The difference is the shape of the offer: Start does not hand you free minutes, it charges $0.14 a minute from your very first call, at no platform fee. That suits a developer building their own agent, not a business that wants to try a finished product before paying.
Which trials do not say either way?
Most vendors publish a trial length and stop there. Their own pricing pages do not say whether a card is required to start, and we do not guess in either direction; if you need to know before you click through, ask the vendor directly at signup.
| Vendor | What their trial field says | Credit card mentioned? |
|---|---|---|
| My AI Front Desk | 7-day free trial | Not stated |
| Rosie | 7-day free trial, cancel anytime | Not stated |
| Dialzara | 7-day free trial on inbound voice plans | Not stated |
| NextPhone | 7 days free, cancel anytime | Not stated |
| Abby Connect | Free trial on every plan | Not stated |
| Goodcall | Free demo agent instead of a trial; you pay only when you connect a number | Not stated |
| Jobber AI Receptionist | 14 days on Jobber Grow features, no card; Jobber does not say whether the Receptionist add-on is part of the trial | Not stated |
| Simple Phones | 14-day free trial on every plan | Not stated |
Simple Phones is worth a second look before you trust the number you land on. Their own FAQ still says Simple Phones "starts at $97/mo for 100 calls" while the live Stripe checkout on the same page sells that exact tier for $49. Trust the checkout, not the FAQ. When a vendor's own pages disagree with each other, believe the checkout, not the marketing copy.
Are starter credits the same as a free plan?
Two developer-facing voice platforms hand out credit instead of a plan. Retell AI states it exactly: $10 in free credits. Spend it at any rate and it is gone; there is no day limit attached. Vapi offers the same idea with less transparency: their pricing page offers free credits on signup, with no dollar figure published, so you find out what it is worth only after you have already signed up. Neither of these is aimed at a small business that wants a working receptionist out of the box. Both assume you, or a developer you hire, will wire up the rest. We total up what that "rest" actually costs on the hidden costs page.
Which ones offer no free trial at all?
Two vendors say so outright. Slang.ai: No free trial advertised; every plan is "Get a quote", and it is a restaurant reservation product priced per location, not a general receptionist. Nextiva XBert: No trial, 30-day money-back guarantee, offering a refund guarantee instead of a trial, which protects you after you have paid rather than before. Neither is a bad product for what it does. Neither belongs on a page about free options.
So what should you actually sign up for?
Free forever, at real call volume, does not exist in this market yet. What exists is a genuinely free tier for very light use, a genuinely free trial for a real test, and starter credits for developers. Pick by what you are actually doing this week. Testing whether AI answering works for your business at all: Upfirst or Answrr, both with no card; Upfirst states the length and lets you forward real calls. Barely any call volume and no intention of paying soon: Smith.ai's free tier. Building your own voice agent: Retell AI's credit, because the amount is at least published.
Whatever you pick, work out what it needs to be worth before the free period ends.
You miss about 10 calls a week, and roughly 3 of those callers would have booked.
Estimate from the numbers you enter, not a forecast or financial advice. Check your own call logs and the vendor's terms.
Next step: compare 24/7 live and hybrid answering services, or look at Smith.ai (AI with live agents behind it, live plans from $300 a month, price checked Oct 23, 2026).
Next step: test an AI receptionist for a month. Lowest paid entry prices we track: UpfirstAd from $24.95 a month, Dialzara from $29 a month, Answrr from $49 a month, RosieAd from $49 a month and Simple Phones from $49 a month (prices checked Oct 21, 2026 to Oct 28, 2026). Or compare every AI receptionist we track.
Next step: see the cheapest answering options and free AI receptionist plans before paying for a full service.
Start with the ones we could fully verify
Smith.ai: 25 calls free every month, no expiry. They do not state either way whether a card is required. Upfirst: 14-day free trial, full access to the plan you pick, no credit card required. Answrr: free trial, no credit card required (length not stated on its pricing page). Between them you can test the free-forever shape and the full-featured trial shape without spending anything.
Try Smith.ai free tier Try Upfirst freeAd Try Answrr free
Some links here are affiliate links. They do not change which plans we call free.
Where to go next
- The cheapest paid plans, once free is not enough
- Every vendor price in one sortable table
- What an AI receptionist costs at real call volumes
- What platform credits and add-ons really cost
- Best AI receptionists in 2026, with the reasoning
- Does the free tier even cover nights and weekends?
- A free tier is not a vetted HIPAA answer
Frequently asked questions
Is there a truly free AI receptionist?
One, in our data. Smith.ai runs AI Receptionist Free at $0 a month, covering 25 calls before you pay anything, then $3.00 a call after that. It has no end date and does not convert to a paid plan on its own, which makes it the only entry here that is a free product rather than a free trial of a paid one. Verified October 2026.
Which AI receptionist has a free trial with no credit card?
Upfirst: 14-day free trial, full access to the plan you pick, no credit card required. Answrr: free trial, no credit card required (length not stated on its pricing page). They are the only receptionists aimed at small businesses in our data that state plainly, in their own words, that no card is needed. On the developer side, Bland AI's pay-as-you-go Start plan also needs no card, but you pay per minute from the first call rather than getting a block of usage free, so it is a different shape of "free" aimed at technical buyers.
What are AI receptionist starter credits, and are they a free trial?
Not quite. A trial gives you a block of days or minutes that expires. A starter credit gives you a dollar balance that you burn down at whatever rate you use, with no clock running. Retell AI states it plainly: $10 in free credits. Vapi offers the same idea, "Free credits on signup", but does not publish the amount, so you only find out what it is worth after you sign up.
What happens after the free trial or free tier runs out?
It depends on the vendor, and almost none of them publish an automatic-charge policy on their pricing page. Trials generally require you to actively choose and pay for a plan. Smith.ai's free tier does not expire, it just starts charging $3.00 per call past 25 calls. If free was only ever meant to be a test, the next step is pricing your real call volume: see the cheapest plans that actually work at real volume.