# Usage and costs

Query rated usage records, usage summaries, cost trends, and AI service usage.

## Choose a task

| Task | Page | Description |
| --- | --- | --- |
| Get rated usage summary | [Get rated usage summary](summary.md) | Aggregate rated usage by billing period, hour, day, or month, grouped by meter, workspace, and record status. |
| List rated usage records | [List rated usage records](records.md) | List an account's rated usage records, applied prices, and net charges. |
| Get cost trends | [Get cost trends](cost-trends.md) | Aggregate rated usage charges by hour, day, or month and group them by meter, workspace, or service. |
| List AI service usage | [List AI service usage](ai-service.md) | List AI service usage and rating results for the current account, with service-slot and billing-scenario filters. |

```{toctree}
:hidden:
:maxdepth: 1

Get rated usage summary <summary>
List rated usage records <records>
Get cost trends <cost-trends>
List AI service usage <ai-service>
```