As of 2026-09-16 the official pricing page has been restructured into "Usage only (No Success Package) + optional Success Package". The sign-up starting allowance is "US$5 free credits to get you started" (US$5 of prepaid credit, not minutes; credits are prepaid US dollars applied to Vapi hosting at US$0.05/minute plus model, voice, transcription and telephony costs, the latter four passed through at provider list prices with no markup). Usage only includes 4 concurrent calls, 2 organizations, 1 included Vapi phone number, 14 days raw data retention, full model catalog, full platform access, peer-to-peer support via the Discord community, and email support without SLA. When the balance reaches 0 and auto-reload is off, the subscription is frozen and no new calls can be started (docs.vapi.ai billing). The old wording "60+ minutes included", "10 concurrent lines included" and "US$10 credit" no longer appears on the official site. (Read directly from vapi.ai/pricing and docs.vapi.ai via playwright on 2026-09-16)
Lifetime license, no subscription, no auto-renewal, no quota limit. ⚠️Two checks on 2026-08-22 found that the fixed price of US$6.99 recorded on 08-11 is sold out, the current tier is US$7.99 (328 spots), and it will increase to US$9.99 (next 1000) when full; at the time of checking, a limited-time 30% discount code TERMI30 is automatically applied, with a actual payment of US$5.59, and the countdown is approximately 9 hours. The tiered flash sale mode has been restored, which is different from the single fixed price previously recorded.
Vapi
Plan
Price
What you get
Usage only (No Success Package)
API pay-as-you-go (usage-based)
From US$0 (pre-paid): Vapi hosting US$0.05/minute; STT, LLM, TTS and telephony passed through at provider list prices with no markup; includes 4 concurrent calls, 2 organizations, 1 Vapi phone number and 14 days raw data retention; no response or uptime SLA (support starts at Core)
Core
US$29 / mo
US$29/month (pre-paid, auto-renew) plus usage fees: 2 organizations, 5 Vapi phone numbers, 10 concurrent calls, 30 days raw data retention, ZDR, email support, 2 business day response SLA
Pro
US$999 / mo
10% of Vapi hosting fees with a US$999 monthly minimum (model costs not included): 10 organizations, 10 Vapi phone numbers, 30 concurrent calls, 180 days raw data retention, RBAC + ZDR, email + dedicated Slack support, 1 business day response SLA, 99% uptime SLA
Premier
Official quote (upon inquiry)
Custom, direct sales only: custom number of organizations, concurrency, data retention and phone numbers, priority support, named support team (Agent Strategist, FDE Advisor, onboarding), 1 hour P0 response SLA, 99.9% uptime SLA, custom RBAC + ZDR + SSO, dedicated SIP
Which one should you pick?
If you want to try before paying, Vapi has a free plan and Termi Protocol does not — start with Vapi.
Termi Protocol has no public paid plan; Vapi starts at about US$29 / mo.
FAQ
Is there a free version of Termi Protocol?
No public free plan — a subscription is required.
How much does Termi Protocol cost?
The cheapest is the plan from Termi Protocol named Lifetime Pass, at about US$7.99（One-time purchase）.
Does Termi Protocol support Chinese?
Termi Protocol has no Chinese interface at this time.
Is there a free version of Vapi?
Yes. As of 2026-09-16 the official pricing page has been restructured into "Usage only (No Success Package) + optional Success Package". The sign-up starting allowance is "US$5 free credits to get you started" (US$5 of prepaid credit, not minutes; credits are prepaid US dollars applied to Vapi hosting at US$0.05/minute plus model, voice, transcription and telephony costs, the latter four passed through at provider list prices with no markup). Usage only includes 4 concurrent calls, 2 organizations, 1 included Vapi phone number, 14 days raw data retention, full model catalog, full platform access, peer-to-peer support via the Discord community, and email support without SLA. When the balance reaches 0 and auto-reload is off, the subscription is frozen and no new calls can be started (docs.vapi.ai billing). The old wording "60+ minutes included", "10 concurrent lines included" and "US$10 credit" no longer appears on the official site. (Read directly from vapi.ai/pricing and docs.vapi.ai via playwright on 2026-09-16)
How much does Vapi cost?
The cheapest is the plan from Vapi named Core, at about US$29 / mo.
Does Vapi support Chinese?
Vapi only partially supports Chinese.
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