docs/en/reference/utils/callbacks/platform.md

metadata

description: >-
  Platform callback functions for console logging during YOLO11 training
  lifecycle events.
keywords: >-
  platform callbacks, training callbacks, console logging, YOLO11 training,
  lifecycle events, Ultralytics

Reference for ultralytics/utils/callbacks/platform.py

!!! success "Improvements"

This page is sourced from [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/utils/callbacks/platform.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/utils/callbacks/platform.py). Have an improvement or example to add? Open a [Pull Request](https://docs.ultralytics.com/help/contributing/) — thank you! 🙏

::: ultralytics.utils.callbacks.platform.on_pretrain_routine_start

---

::: ultralytics.utils.callbacks.platform.on_pretrain_routine_end

---

::: ultralytics.utils.callbacks.platform.on_fit_epoch_end

---

::: ultralytics.utils.callbacks.platform.on_model_save

---

::: ultralytics.utils.callbacks.platform.on_train_end

---

::: ultralytics.utils.callbacks.platform.on_train_start

---

::: ultralytics.utils.callbacks.platform.on_val_start

---

::: ultralytics.utils.callbacks.platform.on_predict_start

---

::: ultralytics.utils.callbacks.platform.on_export_start