---
title: models.sam.sam3.model_misc API Reference
description: Explore the ultralytics.models.sam.sam3.model_misc module with helper layers and utilities used in SAM3 model components.
keywords: Ultralytics, SAM3, SAM, transformer, layers, utilities, deep learning, Python
---

# Reference for `ultralytics/models/sam/sam3/model_misc.py`

!!! success "Improvements"

    This page is sourced from [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/models/sam/sam3/model_misc.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/models/sam/sam3/model_misc.py). Have an improvement or example to add? Open a [Pull Request](https://docs.ultralytics.com/help/contributing) — thank you! 🙏

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## ::: ultralytics.models.sam.sam3.model_misc.DotProductScoring

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## ::: ultralytics.models.sam.sam3.model_misc.LayerScale

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## ::: ultralytics.models.sam.sam3.model_misc.TransformerWrapper

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## ::: ultralytics.models.sam.sam3.model_misc.get_valid_ratio

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## ::: ultralytics.models.sam.sam3.model_misc.gen_sineembed_for_position

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