> ## Documentation Index
> Fetch the complete documentation index at: https://docs.apisale.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Pricing

> USD wallet, metered usage, and volume tiers.

## Pay as you go

* Wallet balance is in **USD**
* Each run is metered per model pricing on the model detail page
* Balance is **pre-held** when a run starts and settled when it completes

## Top up

Add balance in [Console → Billing](https://apisale.ai/console/billing). Packages and custom amounts are supported.

## Volume tiers

Higher lifetime top-ups unlock:

* Consumption discounts (see [Pricing page](https://apisale.ai/pricing))
* Higher [concurrency limits](/get-started/errors-and-limits)

## Preview pricing

```bash theme={null}
curl -X POST "https://api.apisale.ai/v1/pricing/preview" \
  -H "Authorization: Key $APISALE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model_slug": "fal-ai/flux/dev",
    "input": { "prompt": "test" }
  }'
```