# Billing

https://modelportal.ai/docs/pricing-and-billing

The platform charges your prepaid balance for actual usage, and every model's prices are public on the [pricing page](/pricing).

- [Billing](/docs/billing): where balance comes from, how prices work, and what is free.
- [Attempts and settlement](/docs/attempts): how attempts within a request are charged and settled with providers.
- [Usage](/docs/usage): usage summaries and billing records in the console.
- [Refunds](/docs/refunds): what can be refunded and how to ask.