Enterprise-Ready Voice AI Agents for Automated Phone Calls.
Synthflow is an end-to-end voice AI platform with its own in-house telephony, positioning itself around a repeatable "BELL" lifecycle (Build, Evaluate, Launch, Learn) for deploying and continuously improving AI voice agents that handle inbound and outbound phone calls for enterprises.
| Plan | Price | Included | Notable |
|---|---|---|---|
| Enterprise | Starting at $30,000/year | Custom, scoped to call volume, concurrency, telephony, integrations, and security needs | Enterprise SLA and support terms, Synthflow Native Telephony, SIP trunking, or approved enterprise telephony, Custom concurrency planning, routing, escalation paths, handoffs, fallback logic |
Checked 2026-08-06 against their pricing page. Vendors change pricing without notice.
Synthflow is a voice-AI operating system for enterprises: a call-flow builder plus a proprietary telephony layer, wrapped in a lifecycle process (BELL) for building, testing, launching, and continuously monitoring voice agents, with a REST API (OpenAPI 3.1) and MCP server for programmatic and AI-agent management.
Enterprises running high call volumes (the vendor cites 65M+ customer calls processed and 30+ countries served) that need carrier-grade telephony, compliance-tested call flows, and CRM/CCaaS integration rather than a lightweight voice-bot demo.
Pricing is exclusively Enterprise, starting at $30,000/year per the pricing page, with final cost scoped around call volume, concurrency, telephony, integrations, and security - there is no self-serve or low-volume tier, which rules out solo builders, small businesses, or anyone wanting to test the product without a sales engagement. The pricing page also states 'Skip the trial-and-error,' implying no open self-serve trial either.
No curated rival set covers this tool yet, so these are simply other tools in the same architectural layer and product form. Treat it as a starting point, not a shortlist.
Yes - the docs describe an MCP server that connects Cursor, Claude, Codex, and other MCP-capable clients to manage agents, calls, and knowledge bases via tools.
Enterprise contracts start at $30,000 annually; final pricing is scoped around call volume, concurrency, telephony setup, integrations, security needs, and launch support. There is no published self-serve tier.
Synthflow provides in-house telephony (claiming sub-100ms latency) but also supports SIP trunking and integration with a customer's existing approved enterprise telephony.
Yes - the Test Center runs automated simulated calls to measure accuracy, response quality, and compliance against defined KPIs before customers call.
Synthflow's name for its agent lifecycle: Build (design flows in the visual Flow Designer), Evaluate (Test Center simulations), Launch (deploy via Synthflow's own telephony network), and Learn (Auto-QA and monitoring feed insights back into the next version).
Yes - the docs list WhatsApp Business Calling as an integration for inbound voice experiences inside WhatsApp Business, alongside CRM/CCaaS integrations like Salesforce, HubSpot, and Stripe (for reseller billing).
This page tells you whether Synthflow fits. Cheetah builds and runs the system it goes into — enrichment, sequencing, CRM and the joins between them.
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