Synthflow Pricing (2026): Pay-As-You-Go and Enterprise, Explained

Synthflow pricing now has two paths: a pay-as-you-go per-minute plan and enterprise contracts starting at $30,000 per year. The old fixed monthly plans with minute bundles have been discontinued.

That change confuses buyers, because most reviews still quote the retired $29 to $899 monthly tiers. Today you pay per successful call minute, with the rate set by your model, voice, and telephony choices.

This guide covers the current pay-as-you-go rates, the enterprise floor, worked monthly examples, and how Synthflow compares to Vapi, Retell AI, and Bland AI. Figures come from Synthflow's own site and documentation.

How much does Synthflow cost?

Synthflow costs a per-minute rate on pay-as-you-go, with Synthflow's materials citing flat pricing starting around $0.08 to $0.09 per minute and typical effective rates of about $0.15 to $0.24 per minute. Enterprise contracts start at $30,000 per year.

There is no monthly license fee on pay-as-you-go. You are billed only for successful inbound or outbound minutes, with no charge for failed calls.

Exact live rates depend on your chosen model, voice, and telephony, and Synthflow does not publish a full public rate card. Verify current numbers on synthflow.ai/pricing before you commit.

Synthflow pricing changed: the old monthly plans are gone

Synthflow discontinued its legacy monthly plans, which ran from a $29 Starter to Pro, Growth, and Agency tiers with fixed minute bundles. Third-party pages still quoting those prices are out of date.

The replacement is a component-style pay-as-you-go model. Your per-minute price combines an LLM-based charge and a voice-engine charge, plus telephony.

This shift mirrors the wider market. Vapi, Retell, and Bland all price per minute, so Synthflow now competes on the same axis instead of bundle sizes.

How Synthflow pay-as-you-go pricing works

Synthflow pay-as-you-go bills per successful call minute, combining an LLM charge and a voice-engine charge with your telephony cost. The subscription itself costs $0 per month once you add a payment method.

Synthflow's own cost guide describes flat per-minute pricing starting at $0.08 per minute, with enterprise tiers as low as $0.07. Its documentation has cited a voice-engine starting rate around $0.09 per minute and typical combined rates of $0.15 to $0.24.

The base rate covers a lot: speech recognition, the default LLM, ElevenLabs text-to-speech voices, call recording and transcription, CRM integrations, and API plus no-code editor access.

Pay-as-you-go includes unlimited agents and 5 concurrent calls, with SOC 2, GDPR, and ISO 27001 compliance. Higher concurrency requires an enterprise conversation.

• Billing: per successful minute only; failed calls are not charged.
• Cited starting rates: ~$0.08-$0.09/min; typical effective ~$0.15-$0.24/min.
• Included: STT, default LLM, TTS voices, recording, transcription, integrations.
• Pay-as-you-go concurrency: 5 simultaneous calls; unlimited agents.

Synthflow enterprise pricing: contracts from $30,000 a year

Synthflow enterprise contracts start at $30,000 annually, with final pricing scoped to call volume, concurrency, telephony setup, integrations, security needs, and launch support. That floor works out to $2,500 per month.

Enterprise buys custom per-minute rates, unlimited concurrency, SIP trunking, HIPAA compliance, white-label options, and a 99.99% uptime SLA. It also includes implementation, onboarding, and a dedicated solution architect.

Synthflow's materials cite enterprise per-minute rates as low as $0.07 at volume, with tiered discounts scaling from 20,000 to 400,000+ monthly minutes. At those volumes the $30,000 floor can beat pay-as-you-go rates.

Synthflow plans at a glance

Synthflow now offers two plans: pay-as-you-go for self-serve teams and enterprise for scaled deployments. Here is the side-by-side.

Both plans include SOC 2 and GDPR compliance. HIPAA, SIP trunking, white-labeling, and the 99.99% SLA are enterprise-only.

What Synthflow costs per month: worked examples

At the typical effective rates Synthflow cites, expect roughly $75 to $120 per month at 500 minutes and $1,500 to $2,400 at 10,000 minutes. Here is the arithmetic.

Using the cited $0.15 to $0.24 per-minute range: 500 minutes costs $75 to $120, 2,000 minutes costs $300 to $480, and 10,000 minutes costs $1,500 to $2,400.

These are illustrative ranges, since Synthflow prices depend on your exact model, voice, and telephony configuration. Get a live quote or run a small paid pilot to pin down your rate.

Above roughly 15,000 to 20,000 minutes per month, ask for an enterprise quote. Volume discounts toward $0.07 per minute can undercut pay-as-you-go substantially.

How Synthflow pricing compares to Vapi, Retell, and Bland

Synthflow sits at the convenience end of the voice-agent market: more managed than Vapi or Retell, priced close to Bland. Here is the cross-vendor snapshot.

Developer-first platforms like Vapi and Retell can run cheaper per minute if you tune the stack. Synthflow's pitch is the managed, no-code layer and enterprise launch support on top.

Rates move quickly in this market. Verify all four pricing pages before you choose.

The bottom line on Synthflow pricing

Synthflow is now a per-minute platform with a serious enterprise tier: expect roughly $0.15 to $0.24 per minute effective on pay-as-you-go, and $30,000 per year minimum for enterprise. The old cheap monthly bundles no longer exist.

Pay-as-you-go fits small teams that want a managed, no-code voice agent without provider accounts. Enterprise fits contact-center volume where custom rates and SLAs matter.

Because Synthflow does not publish a full rate card, confirm your configuration's exact per-minute price in writing before you scale.