Synthflow
$2500/mo from
Now priced for enterprise, not small shops.
Plans & source
Enterprise contracts start at $30,000/yr.
Source: https://synthflow.ai/pricing. USD unless noted.
Compare
Synthflow vs Retell AI.
Short answer: Pricing models differ, so entry prices don't compare directly.
| Synthflow | Retell AI | |
|---|---|---|
| Entry price | US$2500/mo from | Usage-based |
| Plans | Enterprise contracts start at $30,000/yr. | Pay as you go: $0.07–$0.31/min for voice agents. $10 free credit. 20 concurrent calls included; extra capacity $8 per concurrent call/mo. |
| Human backup | No | No |
| Built for | general, medical clinics, real estate | general, medical clinics |
| Integrations | None published | None published |
Both listings.
Retell AI
Usage-based
A developer platform, not an out-of-the-box receptionist. Many agencies build on it.
Plans & source
Pay as you go: $0.07–$0.31/min for voice agents. $10 free credit. 20 concurrent calls included; extra capacity $8 per concurrent call/mo.
Source: https://www.retellai.com/pricing. USD unless noted.
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