Synthflow AI
No-code voice-agent platform with component per-minute pricing and a white-label program for agencies.
Synthflow is a no-code platform for building AI voice agents: a drag-and-drop builder, telephony, integrations, and agency sub-accounts. It sits between developer APIs like Retell and finished receptionist products — you assemble the agent yourself, without code.
Pricing is pay-as-you-go per minute, broken into components (voice engine + LLM + telephony), with a typical all-in cost the vendor states at $0.15–$0.24/min. A $2,000/mo white-label program targets agencies reselling voice agents.
Pricing
~$0.15–$0.24/min — Pay-as-you-go: voice engine $0.09/min + LLM $0.02–$0.05/min + telephony $0.02/min (or $0 with your own Twilio). 5 concurrent calls included (+$20 each additional); phone numbers $1.50; white label $2,000/mo; Enterprise custom at 10,000+ min/mo.
Verified 2026-06-11 against the vendor's pricing page. Pricing changes — always confirm with the vendor before buying.
Pros & cons
Pros
- No-code builder deploys agents fast without engineering
- Transparent component pricing with a bring-your-own-Twilio option
- Strong white-label/agency program with sub-accounts
- Scales to enterprise with SLA and custom rates
Cons
- Per-minute billing makes monthly cost variable at fluctuating volumes
- You build and maintain the agent — it's a platform, not a finished service
- White label is a significant fixed cost ($2,000/mo)
- All-in per-minute cost depends on stacking components, which complicates comparison
Feature checklist
| Feature | Synthflow AI |
|---|---|
| 24/7 call answering | ✓Agents run continuously once deployed |
| Appointment scheduling | ✓Calendar booking actions |
| SMS follow-up / texting callers | ✓Post-call actions / SMS |
| Email follow-up | PartialVia post-call actions and integrations |
| CRM / back-office integrations | ✓CRMs, webhooks, Zapier |
| Live transfer to a human | ✓Call transfer actions |
| Spanish / bilingual support | ✓Multilingual agents (vendor claims 20+ languages) |
| Custom call scripts & flows | ✓You build the flows |
| Outbound calling | ✓ |
| Call analytics dashboard | ✓ |
| Industry-specific packaging | ✕Horizontal platform |
| Self-serve signup | ✓Free to start, pay-as-you-go |