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---
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description: Discover detailed instructions for building various Segment Anything Model (SAM) and Segment Anything Model 2 (SAM 2) architectures with Ultralytics, including SAM ViT and Mobile-SAM.
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keywords: Ultralytics, SAM model, Segment Anything Model, SAM 2 model, Segment Anything Model 2, SAM ViT, Mobile-SAM, model building, deep learning, AI
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---
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# Reference for `ultralytics/models/sam/build.py`
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!!! note
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This file is available at [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/models/sam/build.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/models/sam/build.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/sam/build.py) 🛠️. Thank you 🙏!
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<br>
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## ::: ultralytics.models.sam.build.build_sam_vit_h
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<br><br><hr><br>
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## ::: ultralytics.models.sam.build.build_sam_vit_l
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<br><br><hr><br>
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## ::: ultralytics.models.sam.build.build_sam_vit_b
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<br><br><hr><br>
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## ::: ultralytics.models.sam.build.build_mobile_sam
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<br><br><hr><br>
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## ::: ultralytics.models.sam.build.build_sam2_t
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<br><br><hr><br>
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## ::: ultralytics.models.sam.build.build_sam2_s
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<br><br><hr><br>
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## ::: ultralytics.models.sam.build.build_sam2_b
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<br><br><hr><br>
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## ::: ultralytics.models.sam.build.build_sam2_l
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<br><br><hr><br>
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## ::: ultralytics.models.sam.build._build_sam
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<br><br><hr><br>
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## ::: ultralytics.models.sam.build._build_sam2
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<br><br><hr><br>
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## ::: ultralytics.models.sam.build.build_sam
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<br><br>
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