Based on the information I found, Vapi uses a credit-based billing system where 1 credit equals $1. When users exceed their monthly usage limits, they'll see "Billing Limits Exceeded" errors in the dashboard and API.
According to [Vapi's documentation](
https://docs.vapi.ai/billing/billing-limits), once you've used all starter credits or exceeded monthly limits, you'll need to purchase additional credits to continue using the service.
To better assist you, could you clarify if you're referring to a specific plan that offers 1000 free minutes per month? I don't see this exact threshold mentioned in the documentation.
Sources:
- [Vapi Billing Limits](
https://docs.vapi.ai/billing/billing-limits)
- [Vapi Billing FAQ](
https://docs.vapi.ai/billing/billing-faq)