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

# cassian switch

> Switch GPU type with live availability.

## Usage

```bash theme={null}
cassian switch
```

Shows available GPUs with live availability, updates `cassian.yaml`, and you're ready to `cassian up` with the new GPU.

## Example

```
$ cassian switch
  Current GPU: RTX3090

  Switch to GPU
  ❯ H100 SXM   80GB · best for large training · 2 available
    A100 SXM   80GB · reliable workhorse · 1 available
    L4         24GB · efficient inference · 3 available
    RTX 4090   24GB · fast, affordable · unavailable

  ✓ Switched to L4
  Run cassian up to start with the new GPU.
```