
Synthflow
4.1
Synthflow sells enterprise voice agents as an annual contract scoped to call volume, phone system, integrations, security requirements and launch support. The company states explicitly that there is no free plan, no trial and no per-minute rate; pricing requires a scoping call.
- Commercial use OK
- Enterprise contract

- Pricing
- Contact sales
- Free tier
- No
- Commercial use
- Permitted
- Japanese UI
- Not confirmed
- Enterprise contract
- Available
What it is good for
- Enterprises replacing a contact centre tier rather than piloting
- Deployments needing security review as part of delivery
- Organisations that want launch support included
- Call volumes large enough to justify an annual commitment
Strengths and trade-offs
Strengths
- Bundling telephony, integration and security review into one contract simplifies procurement
- Launch support included rather than a professional services add-on
- Clear that it is enterprise-only, which saves time
Trade-offs
- No trial and no self-serve path at all
- Annual commitment with no usage-based alternative
- Impossible to compare on price without a sales process
Editors' review
Honest about who it is not for
Stating plainly that there is no free plan and no per-minute rate is more useful than a pricing page that hides the minimum. It tells a small team to look elsewhere in ten seconds.
For an enterprise, the bundled security review is worth real money — it is usually the step that delays these projects by a quarter.
Verdict
Enterprise-only by design. Use Bland or Vapi to pilot, then consider this at scale.
Compiled from official documentation and public sources, with our own editorial judgement. We do not publish figures we cannot source.