# Using the Loss Inspector

You can only use the Loss Inspector while training a High Detail mode tool or with a High Detail mode tool that has already been trained.

1. Go to Tool, then select Inspect Loss. While training, you can also click the Graph icon to monitor the validation loss in real-time.

2. The Loss Inspector window pops up.

3. If you abort the training before it finishes, a pop-up shows up asking if you want to save the current model. Saving the model also saves the validation loss recorded over the training so far.

4. After the training finishes, a red dot appears on the graph to mark the Best Epoch and the Best Loss for this training session.

## Zoom and Pan

You can zoom in and out, zoom in a specific rectangular region, or pan on the loss graph area by enabling the Zoom/Pan checkbox.

For more information about the Loss Inspector, see Loss Inspector