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

# Account and billing

> View your account, remaining quota, and usage trends.

**Account & billing** is the first section in Settings. It shows your sign-in state and helps you understand how much AI quota remains and how it has been used.

If you are signed out, the page shows **No account signed in** and asks you to sign in to synchronize preferences and view billing information. See [Install and sign in](/en/getting-started/install-and-sign-in).

> 📷 **Placeholder: account and billing overview** — show the account card, remaining quota, and usage area.

## Account information

The profile card shows the current account, avatar, and basic details. Use **Sign out** when switching accounts or using a shared device. Account-based synchronization and billing information are hidden until you sign in again.

## Remaining quota

**Remaining quota** tells you how much AI usage is available. When it is low or exhausted, the page marks it as insufficient. If you prefer to use your own provider, see the custom-model section in [Model services](/en/settings/model-services).

## Usage trends

**Quota consumption analysis** offers 7-day, 30-day, and 90-day views. Each view tracks:

| Metric   | Meaning                                      |
| -------- | -------------------------------------------- |
| Requests | Number of AI requests in the selected period |
| Input    | Input tokens sent to the model               |
| Output   | Output tokens returned by the model          |

Use the period total and current remaining amount to identify unusually intensive writing or research periods.

> 📷 **Placeholder: usage-trend chart** — show the time-range selector and request, input, and output series.

## Tips

* Billing data can lag by 5–10 minutes; use the final statement for billing reconciliation.
* Refill quota or switch to a custom model before a conversation is interrupted by exhausted quota.

## See also

* [Model services](/en/settings/model-services)
* [Install and sign in](/en/getting-started/install-and-sign-in)