Synthflow Pricing 2026: Enterprise Contracts and What They Cover
Published · prices checked October 26, 2026
Key takeaways
- Synthflow has no cost we can show at 3, 5 or 13 calls a day: it publishes no self-serve plan, billing unit, rounding rule or trial.
- Its only published figure is a floor: enterprise contracts start at $30,000 a year, scoped around call volume, concurrency, telephony, integrations, security and launch support.
- The contract includes implementation, testing, training and launch support, the build work the self-serve platforms leave to you.
Synthflow publishes no self-serve price: its pricing page, read October 26, 2026, says "Enterprise contracts start at $30,000 annually." Synthflow is a build-your-own voice AI platform sold as an enterprise contract, so every cost below reads quote only.
Synthflow pricing plans
Prices checked against each vendor's own pricing page on October 26, 2026.
| Plan | Published price | Billing unit | Contract |
|---|---|---|---|
| Enterprise (build your own) | Quote only; contracts from $30,000 a year | Annual enterprise contract, quote only | Annual enterprise contract |
Our arithmetic: each vendor's cheapest published plan for that volume plus its published overage, at 3-minute calls. Taxes, setup fees and add-ons are not included. How we price.
The page has one tier and one button, "Contact Sales". The floor is a quoted figure, not a plan we can price: "Final pricing is scoped around call volume, concurrency, telephony setup, integrations, security needs, and launch support." (synthflow.ai/pricing, read October 26, 2026)
What a Synthflow contract covers
The pricing page lists six things the contract scopes. Two of them are the work a self-serve platform leaves to you:
- "Implementation, onboarding, testing, training, launch support, and ongoing optimization"
- "Custom concurrency planning, routing, escalation paths, handoffs, and fallback logic"
The others cover telephony ("Synthflow Native Telephony, SIP trunking, or approved enterprise telephony"), integrations, security review, and "Enterprise SLA and support terms scoped in contract."
That is the real difference from Vapi, Retell AI and Bland. On those three, the per-minute rate buys the platform and you build the receptionist. Synthflow sells the platform and the build together, at a price set per contract.
What Synthflow costs at 3, 5 and 13 calls a day
| Plan | 3 calls/day (90/mo) | 5 calls/day (150/mo) | 13 calls/day (390/mo) |
|---|---|---|---|
| Synthflow Enterprise (build your own) | Quote only | Quote only | Quote only |
For scale, here is a year at 13 three-minute calls a day on published prices. Bland's talk time comes to $1,966, before telephony, transfer minutes and the build. NextPhone costs $2,388 and Smith.ai AI Receptionist $8,344. Synthflow's stated floor is $30,000 a year, at any volume.
How Synthflow counts a minute
- Billing unit: Annual enterprise contract, quote only
- Rounding: Not published
- Time billed beyond the call: Not published
- Spam and short calls: Not published
- Setup fee: Not published
- Contract: Annual enterprise contract
- Trial: None found
None of these terms is on the pricing page. They sit in the contract, which we did not read.
What Synthflow connects to
| Tool | Connection | How we know |
|---|---|---|
| Clio | Via Zapier (a Zap you set up) | Vendor's own documentation (page) |
| MyCase | Via Zapier (a Zap you set up) | Vendor's own documentation (page) |
| Lawmatics | Via Zapier (a Zap you set up) | Vendor's own documentation (page) |
| HubSpot | Yes, built in | Listed in the tool's app directory (page) |
| GoHighLevel | Yes, built in | Listed in the tool's app directory (page) |
| Google Calendar | Via Zapier (a Zap you set up) | Vendor's own documentation (page) |
| Calendly | Via Zapier (a Zap you set up) | Vendor's own documentation (page) |
| Jobber | Via Zapier (a Zap you set up) | Vendor's own documentation (page) |
| ServiceTitan | Via Zapier (a Zap you set up) | Vendor's own documentation (page) |
| Housecall Pro | Via Zapier (a Zap you set up) | Vendor's own documentation (page) |
| Towbook | Not documented | Nothing found on its pages or the tool directory |
The pricing page names the scope in general terms: "CRM, calendar, contact-center stack, webhook, API, and knowledge-source integrations". Which tools your contract covers is part of the quote. See which receptionists write to Clio, HubSpot, Jobber and more.
The catch
- The floor is annual. $30,000 a year is more than Smith.ai AI Receptionist's $8,344 at 13 calls a day. The page's own pitch is "Enterprise Voice AI Pricing".
- Nothing about the meter is public. No billing unit, rounding rule, spam policy or transfer rule is on the page. You learn them in the contract.
- No way to try it alone. The page offers "Get a demo" and "Contact Sales", and no trial or free tier.
What to ask Synthflow before you sign
The contract holds every term the pricing page leaves out. Get these in writing:
- The unit and the rounding: per minute, per call or per seat, and how a partial minute bills.
- Transfers and hold: whether the AI fee keeps running after a handoff. Retell AI, for comparison, publishes that its AI fee stops at a transfer.
- Spam and short calls: whether robocalls and hang-ups count toward volume.
- The term and the exit: length, renewal and notice, given the annual floor.
- Your number: whether a number on "Synthflow Native Telephony" can be ported out when you leave.
Where Synthflow is a good buy
At thousands of calls, with a voice agent you want the vendor to build, test and run, the contract includes the work self-serve platforms leave to you. Synthflow says it is "Powering over 65M+ voice calls every month in 30+ countries" (synthflow.ai/pricing, read October 26, 2026); we report that claim and do not test it.
Synthflow against other AI options
| Service | Entry plan | 3 calls/day (90/mo) | 5 calls/day (150/mo) | 13 calls/day (390/mo) | If calls double (13 to 26 a day) | Overage | Source |
|---|---|---|---|---|---|---|---|
| Synthflow (build your own) | Quote only | Quote only | Quote only | Quote only | Quote only | Not published | synthflow.ai/pricing, read Oct 26, 2026 |
| Retell AI (build your own) | Pay as you go at $0.07 to $0.31 a minute | $18.90 to $83.70 | $31.50 to $139.50 | $81.90 to $362.70 | +$81.90 to $362.70 | $0.07 to $0.31 a minute | retellai.com/pricing, read Oct 26, 2026 |
| Goodcall | $79/month (100 unique callers) | $79 | $118.50 | $129 | +$72.80 | $0.15 to $0.79 a caller | goodcall.com/pricing, read Oct 26, 2026 |
| Bland (build your own) | Pay as you go at $0.14 a minute | $37.80 | $63 | $163.80 | +$163.80 | $0.14 a minute | bland.ai/pricing, read Oct 26, 2026 |
| NextPhone | $199/month (unlimited calls) | $199 | $199 | $199 | No change | None, unlimited calls | getnextphone.com/pricing, read Oct 26, 2026 |
| Upfirst | $24.95/month (30 calls) | $59.95 | $119.95 | $227.45 | +$197.55 | $0.70 to $1.50 a call | upfirst.ai/pricing, read Oct 26, 2026 |
| Rosie | $49/month (250 minutes) | $149 | $149 | $299 | Not computable | Moves up to the next plan | heyrosie.com/pricing, read Oct 26, 2026 |
| My AI Front Desk | $99/month (240 minutes: 200 voice plus a 1,000-credit pool worth 40) | $106.50 | $151.50 | $331.50 | +$292.50 | $0.25 a minute | myaifrontdesk.com/pricing, read Oct 26, 2026 |
| Dialzara | $29/month (60 minutes) | $121.50 | $199 | $408.50 | +$409.50 | $0.35 to $0.48 a minute | dialzara.com/pricing, read Oct 26, 2026 |
| Vapi (build your own) | Pay as you go: $0.05/min hosting, plus each speech, model, voice and phone provider billed per minute | Not computable from the published price | Not computable from the published price | Not computable from the published price | Not computable | $0.05/min hosting, plus each speech, model, voice and phone provider billed per minute | vapi.ai/pricing, read Oct 26, 2026 |
Rows marked "build your own" are platform usage only; the other rows are a ready-made receptionist's plan price at that volume. Among the ready-made receptionists in the table, Goodcall costs the least at 13 calls a day, $129. Every option priced against Synthflow is on Synthflow alternatives; the build-or-buy question is on build your own AI receptionist.
Frequently Asked Questions
How much does Synthflow cost?
Synthflow publishes no plan price. Its pricing page, read October 26, 2026, says enterprise contracts start at $30,000 a year, with final pricing set by call volume, concurrency, telephony, integrations, security and launch support.
Does Synthflow have a free plan or trial?
No free plan or trial is on Synthflow's pricing page. The page offers a demo and a sales contact only.
Is Synthflow an AI receptionist?
Synthflow is a voice AI platform that lists a receptionist among its use cases. It sells enterprise contracts that include implementation and launch support, rather than a ready-made receptionist at a monthly price.
Does Synthflow charge per minute?
Synthflow's pricing page does not say. It publishes no billing unit or per-minute rate; the unit and any usage charges are set in the enterprise contract.
How these numbers were made
Every vendor price on this page was read from the vendor's own pricing page on the date in its Source cell and saved as a dated capture. Monthly costs use each vendor's cheapest published plan for the volume plus its published overage, at 3-minute calls. Vendors that hide prices stay in the tables as quote only. We do not test answering quality and publish no ratings.
Sources
Vendor pricing and terms pages, from the price index
- Bland: bland.ai/pricing (read October 26, 2026)
- Dialzara: dialzara.com/pricing (read October 26, 2026); dialzara.com/terms-of-use (read October 27, 2026)
- Goodcall: goodcall.com/pricing (read October 26, 2026); help.goodcall.com/en/articles/8007566-terms-of-service (read October 27, 2026)
- My AI Front Desk: myaifrontdesk.com/pricing (read October 26, 2026); myaifrontdesk.com/terms-of-service (read October 27, 2026)
- NextPhone: getnextphone.com/pricing (read October 26, 2026)
- Retell AI: retellai.com/pricing (read October 26, 2026)
- Rosie: heyrosie.com/pricing (read October 26, 2026); heyrosie.com/legal/terms (read October 27, 2026)
- Smith.ai AI Receptionist: smith.ai/pricing/ai-receptionist (read October 26, 2026)
- Synthflow: synthflow.ai/pricing (read October 26, 2026)
- Upfirst: upfirst.ai/pricing (read October 26, 2026); upfirst.ai/terms-of-service (read October 27, 2026)
- Vapi: vapi.ai/pricing (read October 26, 2026)
Changes to these prices
- Upfirst: cancellation notice recorded as none. Its pricing FAQ says "You can cancel, upgrade, or downgrade anytime, no questions asked," the same strength as other cancel-anytime terms. Its setup-fee summary now reads "None stated": no page says there is no fee. No price changed.
- Retell AI: corrected the transfer term. Its pricing page says "Once the call is transferred, the AI voice agent fee stops. Only the telephony fee continues for the remainder of the transferred call." The index had said the whole call was billed after a transfer. No price changed.
- My AI Front Desk: the 1,000 monthly overage credits its pricing page lists as included ("Extra credits you get each month in case you go over your included usage") now count as 40 included minutes, so Business-in-a-Box covers 240 minutes before the $0.25 rate applies (was 200).
- My AI Front Desk: billing-term summaries (billing unit, rounding, time billed beyond the call, spam, setup fee, contract, trial) added from the vendor-data billing-terms and contracts files and their captures. No price changed.
- Vapi: billing-term summaries (billing unit, rounding, time billed beyond the call, spam, setup fee, contract, trial) added from the vendor-data billing-terms and contracts files and their captures. No price changed.
- Retell AI: billing-term summaries (billing unit, rounding, time billed beyond the call, spam, setup fee, contract, trial) added from the vendor-data billing-terms and contracts files and their captures. No price changed.
- Bland: billing-term summaries (billing unit, rounding, time billed beyond the call, spam, setup fee, contract, trial) added from the vendor-data billing-terms and contracts files and their captures. No price changed.
- Synthflow: billing-term summaries (billing unit, rounding, time billed beyond the call, spam, setup fee, contract, trial) added from the vendor-data billing-terms and contracts files and their captures. No price changed.
- Rosie added from its own pricing page (captured October 26, 2026), with billing terms from its terms, FAQ and help pages (read October 27, 2026). Rosie moves an account up a plan instead of charging overage.
- Goodcall added from its own pricing page (captured October 26, 2026), with billing terms from its terms, FAQ and help pages (read October 27, 2026). Goodcall bills per unique caller a month; our arithmetic counts every call as a different caller.
- Dialzara added from its own pricing page (captured October 26, 2026), with billing terms from its terms, FAQ and help pages (read October 27, 2026).
- Upfirst added from its own pricing page (captured October 26, 2026), with billing terms from its terms, FAQ and help pages (read October 27, 2026). Upfirst does not bill calls under 15 seconds or spam.
- Smith.ai AI Receptionist Enterprise at 500 calls ($800, $2.10 per extra call) added from its pricing page, in a full re-check of every source page.
- Added NextPhone Pro, Growth and Scale from its public pricing page. All three plans include unlimited calls with no per-minute charge or overage fee.
- Smith.ai AI Receptionist: billing terms added.
- My AI Front Desk: overage of $0.25 a minute (25 credits at $0.01) added; it was on the captured page but missing here.
- Smith.ai AI Receptionist: billing terms added from its terms, FAQ and help pages (read October 7, 2026): billing unit, rounding, time billed beyond the call, spam billing, setup fee, contract and trial.
Download the data
The first table on this page (CSV, 1 rows). The full price index (CSV), free to reuse under CC BY 4.0.
How to cite this page
ReceptionistPrices.com, Synthflow Pricing 2026: Enterprise Contracts and What They Cover, prices checked October 26, 2026, https://www.receptionistprices.com/synthflow/pricing/