Compare · Prices checked October 20, 2026
Synthflow vs Vapi (2026)
Published starting prices: Synthflow, $30,000/yr (Enterprise minimum). Vapi, $0.05/min (Hosting fee, plus providers). Side-by-side public pricing, what each does, real use cases and who each suits, all from our listings with sources. We haven't tested either hands-on.
-
Receptionist
Synthflow
No-code voice-agent platform that has moved to enterprise contracts. Listed because it's widely recommended; it is not a small-office product at current pricing.
≥ $2,500/mo at 300 calls
Subscription$30,000/yr
-
Voice platform
Vapi
Developer platform: $0.05/min hosting plus pass-through model, speech and voice costs. Very flexible, very DIY.
≈ $74-116/mo at 300 calls
Pay per use$0.05/min
Quick answer
- Cheaper: Advertised entry prices: Synthflow $30,000/yr, Vapi $0.05/min. At about 300 calls a month, our estimate of the real bill is ≥ $2,500/mo (contract minimum) for Synthflow and ≈ $74-116/mo + telephony + build time for Vapi, so Vapi is cheaper at that volume. Your bill depends on your call volume and call length; the math is on each product page. Checked October 20, 2026.
- Free plans: Synthflow: no $0 plan on its pricing page (checked October 20, 2026). Vapi: no $0 plan on its pricing page (checked October 20, 2026); free trial or free start: $5 free credits.
Pricing side by side
| Item |  Synthflow |  Vapi |
|---|---|---|
| Starting price | $30,000/yr (Enterprise minimum) | $0.05/min (Hosting fee, plus providers) |
| Pricing model | Subscription | Pay per use |
| Free plan | No | No |
| Real bill at 300 calls/mo (our estimate) | ≥ $2,500/mo (contract minimum) | ≈ $74-116/mo + telephony + build time |
| Free trial | None public | $5 free credits |
| Plans |
|
|
| Pricing note | Older self-serve plans quoted on third-party sites no longer appear on the pricing page. | Transcriber ~$0.0095-0.0099, LLM ~$0.0077-0.0452, voice ~$0.0146-0.0238 per min. Telephony billed by your provider. HIPAA is an add-on. |
| Checked | October 20, 2026 | October 20, 2026 |
| Source | Vendor pricing page | Vendor pricing page |
Copied from each vendor's public pricing page on the date shown. "not published" means the vendor doesn't publish it; we don't guess. Prices change; confirm with the vendor.
Features and details from our listings
| Item | Synthflow | Vapi |
|---|---|---|
| What it is | No-code voice-agent platform that has moved to enterprise contracts. Listed because it's widely recommended; it is not a small-office product at current pricing. | Developer platform: $0.05/min hosting plus pass-through model, speech and voice costs. Very flexible, very DIY. |
| Type | Voice AI platform (enterprise) | Developer voice AI platform (build your own) |
| Listed under | AI receptionists, Voice & phone agents | AI receptionists, Voice & phone agents |
| 24/7 answering | yes | yes |
| Appointment booking | Yes (calendar integrations) | If you build it |
| Integrations | CRM, calendar, contact-center, webhooks, API | API, SIP, Twilio |
| Bilingual | Yes (30+ countries) | Model dependent |
| Call transfer | Yes | Yes |
| HIPAA | Security review/DPA in contract; HIPAA not stated on pricing page | HIPAA add-on with BAA |
| Setup fee | Scoped in contract | None (but you build it) |
| Verified public use cases | 0 | 0 |
Use cases
Synthflow
We haven't found a verified public use case for Synthflow yet.
Vapi
We haven't found a verified public use case for Vapi yet.
Use cases are summarised in our own words from the linked public post; vendor case studies are labelled. All use cases.
Who each is best for
- Subscription
Synthflow is best for
- Type: Voice AI platform (enterprise). Real bill at 300 calls: ≥ $2,500/mo (contract minimum).
- Strengths: Mature platform, many reviews; Done-for-you enterprise launch.
- Watch out: $30k/yr minimum rules out small offices; Not self-serve any more.
- Pay per use
Vapi is best for
- Type: Developer voice AI platform (build your own). Real bill at 300 calls: ≈ $74-116/mo + telephony + build time.
- Strengths: Lowest raw cost; Pick any model/voice.
- Watch out: Developer-only; Weak Trustpilot reviews; Telephony billed separately.
From our listing data (jobs, public pricing, industry rankings, pros and cons); not a hands-on test. Full details: Synthflow · Vapi.
FAQ
Which is cheaper, Synthflow or Vapi?
Advertised entry prices: Synthflow $30,000/yr, Vapi $0.05/min. At about 300 calls a month, our estimate of the real bill is ≥ $2,500/mo (contract minimum) for Synthflow and ≈ $74-116/mo + telephony + build time for Vapi, so Vapi is cheaper at that volume. Your bill depends on your call volume and call length; the math is on each product page. Checked October 20, 2026.
Is Synthflow free? Is Vapi free?
Synthflow: no $0 plan on its pricing page (checked October 20, 2026). Vapi: no $0 plan on its pricing page (checked October 20, 2026); free trial or free start: $5 free credits.
How much does Synthflow cost?
Synthflow lists Enterprise: from $30,000/year (Scoped by volume, concurrency, integrations). Our estimate of the real bill at about 300 calls a month: ≥ $2,500/mo (contract minimum). Checked October 20, 2026 on the vendor's pricing page.
How much does Vapi cost?
Vapi lists Usage only: $0.05/min hosting + providers at cost ($5 credit, 1 number, 4 concurrent); Pro package: $999/mo minimum (30 concurrent, Slack support, SLA). Our estimate of the real bill at about 300 calls a month: ≈ $74-116/mo + telephony + build time. Checked October 20, 2026 on the vendor's pricing page.
Did AITeamGuide test them?
Not hands-on. This comparison is built from each vendor's public pricing page (with the date we checked it), published product information and credited public use cases.
Can a vendor pay to win this comparison?
No. Nothing here is paid. Paid placements on AITeamGuide are always labelled "Sponsored" or "Featured" and never change a comparison or ranking.
Related guides
All comparisons →- Best AI receptionists 202622 compared by price
- Cheapest AI voice agent platforms5 sorted by price
- Retell AI vs VapiSide-by-side pricing
- Vapi vs Bland AISide-by-side pricing
- Retell AI vs SynthflowSide-by-side pricing
More comparisons
- Smith.ai vs RubySide-by-side pricing
- Upfirst vs RosieSide-by-side pricing
- Goodcall vs RosieSide-by-side pricing
- Retell AI vs Bland AISide-by-side pricing
- ElevenLabs Reception vs Smith.aiSide-by-side pricing
- ElevenLabs Reception vs GoodcallSide-by-side pricing
- ElevenLabs Reception vs DialzaraSide-by-side pricing
- ElevenLabs Reception vs RosieSide-by-side pricing
- ElevenLabs Reception vs My AI Front DeskSide-by-side pricing
Work at Synthflow or Vapi? Vendors can claim their listing for free or feature it with a label that says "Sponsored"; paid status never changes the order on this page. Building a different agent? List it here.
Comparing Synthflow and Vapi? Get the weekly AITeamGuide
One email a week: the best new AI agents, real prices and price changes (Synthflow and Vapi included), real-world use cases and new Hub tools. Free; unsubscribe anytime.