# Reference for `ultralytics/nn/tasks.py`
!!! note
Full source code for this file is available at [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/nn/tasks.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/nn/tasks.py).
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## ::: ultralytics.nn.tasks.BaseModel
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## ::: ultralytics.nn.tasks.DetectionModel
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## ::: ultralytics.nn.tasks.SegmentationModel
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## ::: ultralytics.nn.tasks.PoseModel
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## ::: ultralytics.nn.tasks.ClassificationModel
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## ::: ultralytics.nn.tasks.RTDETRDetectionModel
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## ::: ultralytics.nn.tasks.Ensemble
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## ::: ultralytics.nn.tasks.temporary_modules
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## ::: ultralytics.nn.tasks.torch_safe_load
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## ::: ultralytics.nn.tasks.attempt_load_weights
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## ::: ultralytics.nn.tasks.attempt_load_one_weight
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## ::: ultralytics.nn.tasks.parse_model
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## ::: ultralytics.nn.tasks.yaml_model_load
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## ::: ultralytics.nn.tasks.guess_model_scale
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## ::: ultralytics.nn.tasks.guess_model_task