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Synthflow alternatives for a small business
There is a reason you are searching for this. Synthflow used to sell monthly plans to small businesses in the $29 to $449 range. Those tiers are no longer on their pricing page. What is there now is a single Enterprise option starting at $30,000 annually, which is about $2,500 a month before you make a call. Read on 2026-10-21. For a small business, that is not a price increase, it is a different market.
The short answer. If you wanted a finished receptionist, go to Rosie at $149 for 1,000 minutes or Answrr at $49 for 250 minutes (4h 10m). If you wanted a platform to build on, Bland AI at $0.14 a minute with no platform fee is the cleanest single rate, and Retell AI prices every component openly if you want to assemble your own. All four cost between $0 and $159 for 1,000 minutes a month.
What changed in Synthflow pricing?
| What Synthflow publishes now | Detail |
|---|---|
| Plans available | Enterprise only, custom contract |
| Starting price | $30,000 annually, which is about $2,500 a month |
| Overage | Not published, all inside the contract. |
| Their own words | Enterprise contracts start at $30,000 annually. Final pricing is scoped around call volume, concurrency, telephony setup, integrations, security needs |
| What that means for you | Large contact centre deployments, not small businesses. |
This is worth stating plainly rather than dramatically: Synthflow has not done anything wrong. Moving upmarket is a normal decision, and for a large contact centre deployment a five-figure annual contract can be entirely reasonable. The problem is purely one of stale information. Any comparison article still listing Synthflow at $29 a month is sending small businesses to a vendor that no longer sells to them.
What does the same workload cost four ways?
One thousand minutes a month is a busy small business: roughly 200 calls at five minutes each. Here is that month at each alternative, with the arithmetic shown.
| Option | Type | Route | 1,000 minutes | Against Synthflow |
|---|---|---|---|---|
| Bland AI | Developer platform | Enterprise plan, $0.14 a minute all in | $0 | Infinityx cheaper |
| Rosie | Finished product | Scale plan, 1,000 minutes | $149 | 16.8x cheaper |
| Retell AI | Developer platform | Realistic component mix, plus the phone number | $150 | 16.7x cheaper |
| Answrr | Finished product | Growth plan plus published overage | $159 | 15.7x cheaper |
| Synthflow | Enterprise contract | Enterprise, from $30,000 a year, scoped by volume and integrations | $2,500 (annual contract, before usage) | Baseline |
How each figure is calculated
- Bland AI: the Start plan has no platform fee, so 1,000 minutes at $0.14 is $140. The Build plan is $299 plus 1,000 at $0.12, or $419, so the free tier is cheaper at this volume.
- Rosie: the Scale plan covers 1,000 minutes for $149 outright. Rosie publishes no overage rate, so buying the plan that covers your minutes is the only predictable route.
- Answrr: the Growth plan is $99 for 700 minutes (11h 40m), plus 300 minutes at $0.20, which is $159. Their Pro plan at $199 covers 1,600 minutes (26h 40m) outright but costs more at this volume.
- Retell AI: two numbers, and the gap between them is the point. The advertised $0.07 a minute is the cheapest possible component mix, giving $80 including the $10 phone number. A realistic build with a good voice and a capable model runs $0.14 a minute, giving $150. That is 2.0 times the headline.
What if you wanted a platform, not a product?
Synthflow was a platform: you built the agent. Two of the alternatives are the same kind of thing, and both have a headline number that needs reading carefully.
| Platform | Headline rate | What that covers | Realistic all-in |
|---|---|---|---|
| Bland AI | $0.14 a minute | Model, transcription and voice. Their page states no token charges and no model-provider pass-throughs; telephony passes through at cost. | $0.14 a minute, plus $0.04 to $0.05 a minute on transfers |
| Retell AI | $0.07 a minute | The cheapest possible mix: basic voice, cheapest model, no extras | $0.14 a minute with a good voice and model, plus $10 a month for the number |
| Vapi | $0.05 a minute | Vapi margin only. Transcription, the model, the voice and telephony are all extra | About $0.08 to $0.13 a minute before telephony, plus $10 a line above 10 concurrent lines |
Bland is the only one of the three quoting a rate that survives contact with a real deployment, which is why it heads the comparison above. Be careful with their platform fee, though: the Build plan costs $299 a month to save $0.02 a minute, so it only pays for itself above 14,950 minutes a month. Below that, the free Start plan is cheaper. Vapi has no page on this site because it publishes only one plan with a real price, which is not enough to compare honestly.
What if you wanted a product, not a platform?
Most small businesses looking at Synthflow did not want to build anything. They wanted their phone answered. Two vendors sell exactly that at a price a small business recognises.
| Vendor | Plans | Overage | Trial |
|---|---|---|---|
| Rosie | Professional $49 for 250 minutes; Scale $149 for 1,000 minutes; Growth $299 for 2,000 minutes | No per-minute overage. Their FAQ says that if you exceed your plan's minutes, they move you up to the next plan automatically, at that plan's standard price, after warning emails; you stay on the higher tier until you switch back. Growth customers who regularly pass 2,000 minutes are offered a custom plan. | 7-day free trial, cancel anytime |
| Answrr | Solo $49 for 250 minutes (4h 10m); Growth $99 for 700 minutes (11h 40m); Pro $199 for 1,600 minutes (26h 40m); Agency $247 for 2,000 minutes, shared pool | $0.25 a minute on Solo, $0.20 on Growth, $0.15 on Pro, $0.10 on Agency ($0.08 on the $497 White-Label tier). | free trial, no credit card required (length not stated on its pricing page) |
For agencies, Answrr's Agency plan is the one worth knowing: $247 for 2,000 minutes, shared pool works out at $0.124 a minute, the same rate as Bland's free tier, and it includes full white label with a custom domain and up to 100 agents. If you were looking at Synthflow to resell voice agents, that is the closest replacement at a price that does not need a contract.
Who should pick which?
Small business that wanted the old Synthflow plans
Rosie or Answrr. $49 a month gets a working receptionist with no build phase. Answrr publishes its overage rate and its pricing page offers a free trial with no credit card required, which makes it the lowest-risk first purchase.
Agency reselling voice agents
Answrr Agency, $247. 2,000 minutes, shared pool at $0.124 a minute with white label and a custom domain. Bland's Start plan at $0.14 a minute is the alternative if you would rather build than resell.
Developer building something custom
Bland AI or Retell AI. Bland for one honest rate, Retell if you want every component priced separately and are willing to do the arithmetic. Budget $0.14 a minute at Retell rather than the $0.07 headline, and your forecast will survive.
Compare the alternatives directly
Synthflow pricing read from their own page on 2026-10-21. If they reintroduce small business tiers, this page changes with them.
Where to go next
- Answrr pricing and Rosie pricing, the two finished products
- Bland AI pricing and Retell AI pricing, the two platforms
- Air AI alternatives, another vendor people are still being sent to
- Goodcall alternatives, if per-customer billing is what you are weighing
- AI receptionist vs virtual receptionist
- All published prices in one table
Frequently asked questions
Does Synthflow still have a small business plan?
No. Their pricing page, read on 2026-10-21, shows Enterprise only, starting at $30,000 annually. Synthflow previously sold monthly plans in the $29 to $449 range to small businesses. Those tiers are gone from their published pricing. At $30,000 a year the effective monthly floor is about $2,500 before any usage, which is roughly Infinity times what the cheapest alternative on this page costs for 1,000 minutes.
Why do so many articles still quote Synthflow at $29 a month?
Because they were written before the change and never updated, and because comparison content in this category is rarely re-checked against the vendor page. That is the whole problem with buying from an article rather than a pricing page. Every figure on this site carries the date we read it, so you can see for yourself how stale a number is.
What is the closest replacement for Synthflow?
It depends which half of Synthflow you wanted. If you wanted a platform to build a voice agent on, the closest matches are Bland AI at $0.14 a minute all in with no platform fee, and Retell AI, which prices every component openly. If you wanted a finished receptionist that answers your phone this week, Rosie at $49 and Answrr at $49 are the products most people were actually after.
What should a small business expect to pay for AI answering?
For a working plan rather than a trial tier, between $49 and $99 a month covers most small businesses. Our 1,000-minute comparison lands between $0 and $159 depending on whether you build it yourself or buy it finished. Anything quoting five figures a year is an enterprise contact centre product, and paying for one as a small business is the mistake this page exists to prevent.