metadata
description: >-
Explore YOLO ClassificationValidator, a key element of Ultralytics YOLO
models. Learn how it validates and fine-tunes model outputs.
keywords: >-
Ultralytics, YOLO, ClassificationValidator, model validation, model
fine-tuning, deep learning, computer vision
Reference for ultralytics/models/yolo/classify/val.py
!!! Note
This file is available at [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/models/yolo/classify/val.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/models/yolo/classify/val.py). If you spot a problem please help fix it by [contributing](https://docs.ultralytics.com/help/contributing/) a [Pull Request](https://github.com/ultralytics/ultralytics/edit/main/ultralytics/models/yolo/classify/val.py) 🛠️. Thank you 🙏!