metadata
description: >-
Explore Ultralytics BaseValidator for model validation in PyTorch, TensorFlow,
ONNX, and more. Learn to check model accuracy and performance metrics.
keywords: >-
Ultralytics, BaseValidator, model validation, PyTorch, TensorFlow, ONNX, model
accuracy, performance metrics
Reference for ultralytics/engine/validator.py
!!! note
This file is available at [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/engine/validator.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/engine/validator.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/engine/validator.py) 🛠️. Thank you 🙏!