If you want to tag a specific revision, you can use the `--revision` option. By default, the tag will be created on the `main` branch:  
```bash
>>> huggingface-cli tag Wauplin/my-cool-model v1.0 --revision refs/pr/104
You are about to create tag v1.0 on model Wauplin/my-cool-model
Tag v1.0 created on Wauplin/my-cool-model
```