What does Synthflow do?
Synthflow is a platform for AI voice agents: software that answers and makes phone calls for a business, for example to book appointments, qualify leads or answer common questions. It runs its own phone network and is sold to larger companies through a sales team.
- Inbound and outbound calls. Voice agents answer incoming calls and place outgoing ones, for jobs like routing callers, booking appointments, qualifying leads and answering FAQs.
- Flow designer. A visual editor where you map out what the agent says and does, with sub-flows, templates for common industries and hand-off to a human when needed.
- Built-in telephony. Synthflow runs its own phone network and also connects to your existing phone system or any SIP-based provider.
- Integrations and actions. Connects agents to CRMs, calendars and contact-center software (Salesforce, HubSpot, Cal.com and others are named), plus webhooks and an API.
- Other channels. The same agents can work over chat and SMS; a WhatsApp integration is listed.
- Analytics. Tracks usage, performance and call outcomes so you can review and improve agents over time.
Who is Synthflow for?
Synthflow is a good fit if you're a business owner, and you need help handling phone calls.
How much does Synthflow cost?
Synthflow starts at $30,000/yr. It has no free plan. We checked this on Oct 10, 2026 on the official pricing page.
- Starts at
- $30,000/yr
- Free plan
- No
- Free trial
- Not offered on the pricing page
Enterprise contracts start at $30,000 a year. Final price is scoped with sales around call volume, concurrency, telephony and integrations. No self-serve plans or per-minute rates are listed.
Synthflow plans compared
| Plan | Billed monthly | Billed yearly | What you get |
|---|---|---|---|
| Enterprise | Not listed | From $30,000/yr | Price scoped with sales around call volume, concurrency, telephony setup, integrations, security needs and launch support |
Synthflow's pricing page lists one plan, Enterprise, with contracts starting at $30,000 a year. It doesn't list self-serve plans, per-minute rates or a free plan. The homepage FAQ says you can build an agent free and pay as you go when you launch, but we couldn't find published pay-as-you-go rates, so check with Synthflow before you plan a budget.
Checked Oct 10, 2026 on Synthflow's pricing page. Prices change often, so confirm before you buy.
Synthflow pros and cons
What stands out
- Handles both inbound and outbound phone calls
- Own telephony plus SIP connections to existing phone systems
- Implementation, onboarding and launch support included in Enterprise
- Lists SOC 2, HIPAA, PCI DSS and GDPR compliance on its homepage
Watch out for
- Published pricing starts at $30,000 a year
- No self-serve plans or per-minute rates on the pricing page
- Built for phone automation, not for making voiceovers or narration
- Final price depends on a sales call
Based on Synthflow's own pages, not hands-on testing.
What are the alternatives to Synthflow?
We list 3 other AI Voice & Audio tools: Descript, ElevenLabs, Murf AI. Each one below shows its starting price and when you might pick it instead.
Compared in
Synthflow FAQ
What sets Synthflow's final price?
Enterprise contracts start at $30,000 a year. Synthflow's pricing page says the final price is scoped with its sales team around call volume, concurrency, telephony setup, integrations, security needs and launch support.
Does Synthflow have a free plan?
The pricing page doesn't list one. The homepage FAQ says you can build an agent free and pay as you go when you launch, but no pay-as-you-go rates are published.
Is Synthflow a text-to-speech tool?
Not in the voiceover sense. Synthflow builds AI agents that hold phone conversations. If you need narration or voiceovers for videos, a text-to-speech tool such as ElevenLabs or Murf AI is the closer fit.
Sources and how we checked
- Official pricing page, checked Oct 10, 2026
- Official website
- Synthflow homepage, checked Oct 10, 2026
- Synthflow docs: introduction, checked Oct 10, 2026
- Synthflow docs: billing, checked Oct 10, 2026