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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. |
| 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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| |
| # 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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