Synthflow

Voice agent platforms, AI receptionists, AI customer service agents, AI outbound calling

Synthflow is a voice AI platform for building and running AI phone agents for inbound and outbound calls, with its own telephony, a visual flow builder, testing and call analytics. It now sells mainly to enterprises, BPOs and contact centers on annual contracts. Its docs also describe an agency workspace with sub-accounts, custom branding and a custom domain for reselling.

Visit SynthflowPricing page

Charges by
Usage-based
Starts at
$2,500/mo (Enterprise)
How it works
AI only
Checked
October 15, 2026

Synthflow pricing

PlanPriceIncludes
Enterprise$2,500/mo billed annuallyContracts start at $30,000 per year; scoped to call volume, concurrency, telephony, integrations, security and launch support
  • Contract: Annual enterprise contract
  • Synthflow's pricing page lists only an Enterprise offering: 'Enterprise contracts start at $30,000 annually' (shown here as $2,500/month, our conversion of the annual minimum). No per-minute rate is published. Telephony (Synthflow native telephony, SIP trunking or approved enterprise telephony), concurrency planning, integrations and launch support are scoped into the contract. The homepage FAQ separately says agents can be built for free and that launched agents move to pay-as-you-go billing for calls and chats. Synthflow's usage docs say calls are billed per second (rounded up), no-answer and voicemail hang-ups count as 5 seconds, failed calls are not billed, usage after a transfer is not counted, and 5 chat messages count as 1 usage minute. Rates come from each customer's agreement.

What it does

Answers inbound calls
Yes
Places outbound calls
Yes
Books appointments
Yes
Warm transfer to a person
Yes
Text follow-up
Yes
Call recording
Yes
Transcripts
Yes
CRM sync
Yes
Keep your number (porting)
Unconfirmed
Spanish
Yes
Other languages
Yes
Web chat
Yes
API
Yes
Custom voice
Yes

Synthflow's docs list about 32 supported languages, including Spanish, plus a Multilingual mode that switches among English, Spanish, French, German and six other languages.

Integrations

As listed by Synthflow. Integrations not listed may still be possible through an API or Zapier.

Security and compliance

Signs a HIPAA BAA
Yes
SOC 2
SOC 2 Type II
Discloses it's an AI
Unconfirmed
Consent capture tools
Unconfirmed
Do-not-call scrubbing
Unconfirmed
Calling-hour controls
Yes

Synthflow publishes a template Business Associate Agreement in its docs, executed at contract signing for customers who use its HIPAA Setting (off by default) to process PHI. Its healthcare page FAQ says Synthflow 'offers BAAs'.

“Unconfirmed” means Synthflow's public pages don't say either way. Rules for AI phone calls

Company

Founded
2023
Built for
Enterprise
Industries
Medical, Financial services, Retail, Real estate, Telecom, Software
Built on
Synthflow lists ElevenLabs, OpenAI and Anthropic as AI integrations, and its docs describe importing or cloning voices from providers such as ElevenLabs.

Sources

  1. Synthflow pricing pricing, compliance. Accessed October 15, 2026
  2. Synthflow homepage features, pricing, compliance. Accessed October 15, 2026
  3. Synthflow docs: usage and billing pricing. Accessed October 15, 2026
  4. Synthflow company company. Accessed October 15, 2026
  5. Synthflow integrations integrations. Accessed October 15, 2026
  6. Synthflow Trust Vault compliance. Accessed October 15, 2026
  7. Synthflow docs: security compliance. Accessed October 15, 2026
  8. Synthflow docs: Business Associate Agreement compliance. Accessed October 15, 2026
  9. Synthflow healthcare compliance. Accessed October 15, 2026
  10. Synthflow docs: campaigns features, compliance. Accessed October 15, 2026
  11. Synthflow docs: supported languages features. Accessed October 15, 2026
  12. Synthflow docs: call transfers features. Accessed October 15, 2026
  13. Synthflow docs: voice configuration features. Accessed October 15, 2026
  14. Synthflow docs: logs features. Accessed October 15, 2026
  15. Synthflow docs: limits and capabilities features. Accessed October 15, 2026
  16. Synthflow docs index features. Accessed October 15, 2026
  17. Synthflow docs: agency white-label dashboard features. Accessed October 15, 2026
  18. Synthflow docs: Partner admin dashboard features. Accessed October 15, 2026
  19. Synthflow partner program affiliate. Accessed October 15, 2026

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