On this page
- Synthflow: best for enterprises building custom voice agents
- Synthflow plans: what each includes and what it lacks
- What Synthflow costs at different call volumes
- How Synthflow counts usage
- Contract, trial and setup terms
- Add-ons and other details
- Who Synthflow suits
- Alternatives to Synthflow
- What Synthflow's pages do not say
- Sources we read
- Frequently asked questions
Synthflow: best for enterprises building custom voice agents
Starting price: Enterprise contracts from $30,000 a yearFree trial: Free to start buildingLanguages: Multiple (no count stated)HIPAA: Claims HIPAA certification; BAA not confirmed
Pricing
| Plan | Price / month | Included | Overage |
|---|---|---|---|
| Enterprise | from $30,000/yr | Custom | Custom |
What you get
- Integrations include GoHighLevel, Salesforce, HubSpot, Jobber, Housecall Pro, ServiceTitan and Dentrix.
- Cold or warm transfers; SMS follow-ups.
- Synthflow says agents launch "in weeks, not months".
Watch out for
- No self-serve monthly price is published; the pricing page shows Enterprise only.
Visit Synthflow Source: official pricing page, checked October 22, 2026.
Synthflow sells enterprise voice-agent contracts rather than small-business plans. Its pricing page lists a single Enterprise plan from $30,000 a year, scoped to your call volume and setup.
Synthflow plans: what each includes and what it lacks
| Plan | Price / month | Included | What it adds | What it lacks |
|---|---|---|---|---|
| Enterprise | From $30,000 a year | Scoped to your volume | Enterprise SLA and support terms; Synthflow native telephony, SIP trunking or approved enterprise telephony; custom concurrency, routing, escalation and fallback logic; CRM, calendar, contact-center, webhook, API and knowledge integrations; MSA and DPA support and security review; implementation, onboarding, testing, training, launch support and ongoing optimization | No self-serve monthly plan |
What Synthflow costs at different call volumes
Synthflow does not publish per-minute or per-call prices, so we cannot work out a monthly cost. Its pricing page says enterprise contracts start at $30,000 a year, which is $2,500 a month before any usage. For comparison, the most expensive self-serve plan we found is NextPhone Scale at $599 a month.
What $30,000 a year compares with
A year of the cheapest published plan from each self-serve product, at 500 and 1,000 calls a month (3-minute calls):
| Software | 500 calls a month | A year at 500 calls | A year at 1,000 calls |
|---|---|---|---|
| NextPhone | $199 | $2,388 | $2,388 |
| Goodcall | $129 | $1,548 | $3,108 |
| Bland | $210 + telephony | $2,520 + telephony | $5,040 + telephony |
| Upfirst | $299 | $3,588 | $6,948 |
| My AI Front Desk | $424 | $5,088 | $9,588 |
| Dialzara | $524 | $6,288 | $12,588 |
| RingCentral AI Receptionist (AIR) | from $749 | $8,988 | $17,988 |
| Smith.ai | $800 | $9,600 | $22,200 |
| Rosie | $299 | $3,588 | No published plan |
Even the most expensive self-serve option at 1,000 calls a month costs a fraction of the minimum contract. Synthflow is built for organizations that need custom routing, security review and managed implementation, not for price.
How Synthflow counts usage
- "Final pricing is scoped around call volume, concurrency, telephony setup, integrations, security needs, and launch support."
- No per-minute rate or included minutes are published.
Contract, trial and setup terms
| Term | Synthflow |
|---|---|
| Contract | Annual, from $30,000 |
| Trial | Synthflow says you can start building for free; no trial terms on the pricing page |
| Setup | Implementation and launch support included in the contract |
| Go-live time | Agents launch "in weeks, not months" |
| Compliance | Claims HIPAA certification; BAA wording not confirmed on its pages |
| Support | SLA and support terms scoped in contract |
Add-ons and other details
- Integrations include GoHighLevel, Salesforce, HubSpot and Pipedrive; vertical tools Jobber, Housecall Pro, ServiceTitan, Dentrix, AthenaOne and Follow Up Boss; and contact-center platforms such as Five9, Genesys, 8x8 and RingCentral.
- Calendars: Cal.com, Google Calendar and Microsoft Calendar.
Who Synthflow suits
A good fit for
- Contact centers and multi-location groups
- Organizations that need a security review, MSA and DPA
- Practices on Dentrix or AthenaOne at enterprise scale
Look elsewhere if you need
- Small businesses: the minimum contract is many times any self-serve plan
- Anyone who wants to start this week without a sales process
Alternatives to Synthflow
Self-serve developer platform from $0 a month plus $0.14 a minute. At 150 calls: $63 + telephony.
DetailsConnect your own APIs from $79 a month, BAA from $299. At 150 calls: $118.50.
DetailsCustom call flows and integrations on its $599 Scale plan. At 150 calls: $199.
DetailsSynthflow vs Bland, Goodcall and NextPhone, side by side
| Synthflow | Bland | Goodcall | NextPhone | |
|---|---|---|---|---|
| Billed by | Annual contract | Per minute + platform fee | Per unique customer | Flat monthly |
| Starting price | Enterprise contracts from $30,000 a year | $0 platform fee, $0.14/min | $79/mo (100 unique customers) | $199/mo (unlimited calls) |
| 50 calls | Annual contract from $30,000 | $21 + telephony | $79 | $199 |
| 150 calls | Annual contract from $30,000 | $63 + telephony | $118.50 | $199 |
| 500 calls | Annual contract from $30,000 | $210 + telephony | $129 | $199 |
| Free trial | Free to start building | Free Start tier, no card | Free demo agent, pay when you connect a number | 7 days (Pro) |
| Languages | Multiple (no count stated) | 40+ | English | 14 languages |
| HIPAA / BAA | Claims HIPAA certification; BAA not confirmed | HIPAA with BAA, not on Start or Build | BAA on Scale plan or Enterprise | No HIPAA or BAA claim found |
| Calendars | Cal.com, Google, Microsoft | Cal.com, Calendly | Google Calendar | Google, Outlook, Calendly, Acuity, Cal.com |
| Transfers | Cold or warm | Warm and live not on Start or Build | Up to three escalation contacts | Warm; 10 destinations on Growth |
| Texting | SMS follow-ups | Not on Start or Build | Sends texts, cannot receive replies | Confirmations; two-way on Scale |
| Your number | Twilio, Telnyx, SIP or PBX | Your own Twilio or SIP | Forwarding only; no porting yet | Forward any number |
| Setup | Weeks | A day to 6 weeks | Free demo agent first | 5 minutes (Pro); built for you (Growth) |
Every other AI receptionist, by cost at 150 calls
| Software | Billed by | 50 calls | 150 calls | 500 calls | HIPAA / BAA |
|---|---|---|---|---|---|
| Bland | Per minute + platform fee | $21 + telephony | $63 + telephony | $210 + telephony | HIPAA with BAA, not on Start or Build |
| Goodcall | Per unique customer | $79 | $118.50 | $129 | BAA on Scale plan or Enterprise |
| Upfirst | Per call | $54.95 | $119.95 | $299 | BAA on Custom plan only |
| Rosie | Per minute | $49 | $149 | $299 | No HIPAA or BAA claim found |
| My AI Front Desk | Per minute + credits | $99 | $161.50 | $424 | Claims HIPAA compliance with signed BAAs |
| Dialzara | Per minute | $72.20 | $199 | $524 | No HIPAA or BAA claim found |
| NextPhone | Flat monthly | $199 | $199 | $199 | No HIPAA or BAA claim found |
| RingCentral AI Receptionist (AIR) | Per minute | from $74 | from $224 | from $749 | "Designed to support HIPAA compliance"; no BAA stated |
| Smith.ai | Per call | $75 | $270 | $800 | No HIPAA or BAA claim found |
Compare all AI receptionists or see every plan side by side.
What Synthflow's pages do not say
Ask Synthflow about these in writing before you sign up; we could not find them on its site.
- Any per-minute rate or included minutes
- BAA wording
- Free trial limits
Sources we read
All checked October 22, 2026. We read published information and did not run test calls.
Frequently asked questions
How much does Synthflow cost?
Starting price: Enterprise contracts from $30,000 a year. Billing: annual contract.
Does Synthflow have a free trial?
Free to start building.
Is Synthflow HIPAA compliant?
Claims HIPAA certification; BAA not confirmed. A vendor must sign a Business Associate Agreement (BAA) before you use it with patient information.
What languages does Synthflow support?
Multiple (no count stated).
Does Synthflow require a contract?
Annual, from $30,000.
What counts toward my Synthflow bill?
"Final pricing is scoped around call volume, concurrency, telephony setup, integrations, security needs, and launch support." No per-minute rate or included minutes are published.
Does Synthflow charge for spam calls?
Not stated; billing is scoped in the contract.
What happens if I go over my Synthflow plan?
Not published. Synthflow scopes price around call volume and concurrency in the contract.
Is Synthflow worth it?
Only if you are an enterprise or contact center that needs custom routing, security review and managed launch. The $30,000 minimum is $2,500 a month, more than four times NextPhone's top plan.
What does Synthflow not publish?
Its pages do not state: any per-minute rate or included minutes; bAA wording; free trial limits.