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

# Modifying Instances

> Modify instance configurations using VSCode. Update disk space and GPU counts for your active Thunder Compute cloud resources.

<Columns cols={3}>
  <Card title="VS Code" icon="window" color="#95c5ea" className="platform-card platform-current">
    Editor extension
  </Card>

  <Card title="CLI" icon="terminal" href="/cli/operations/modifying-instances" color="#95c5ea" className="platform-card">
    Command line
  </Card>

  <Card title="Console" icon="browser" href="/console/operations/modifying-instances" color="#95c5ea" className="platform-card">
    Web interface
  </Card>
</Columns>

## Modify an Instance

1. Open the Thunder Compute sidebar panel
2. Right-click on a running instance
3. Select **Modify Instance**
4. A configuration window will open—adjust the resources
5. Click **Save**

## What Can Be Modified

| Resource          | Can Modify?   | Notes                                                                          |
| ----------------- | ------------- | ------------------------------------------------------------------------------ |
| GPU Type          | Yes           |                                                                                |
| GPU Count         | Yes           |                                                                                |
| vCPUs             | Yes           | Development mode only                                                          |
| RAM               | Yes           | Scales with vCPUs (development) or GPUs (production)                           |
| Mode              | Yes           | Switch between development and production                                      |
| Primary Disk      | Increase only | Cannot shrink disk                                                             |
| Ephemeral Storage | Yes           | Data is lost when modified. See [Ephemeral Storage](/guides/ephemeral-storage) |

<Note>
  RAM is automatically determined based on your configuration. See the [pricing page](https://www.thundercompute.com/pricing) for details.
</Note>