A company is migrating PyTorch-based models from on-premises to SageMaker and wants to reuse its custom training scripts as much as possible. Which SageMaker feature supports running existing scripts with minimal changes?

SageMaker script mode allows you to run your existing PyTorch training scripts with minimal modifications directly on SageMaker. You define an entry point script, and SageMaker handles the infrastructure, environment, and data transfer. This approach maximizes code reuse and minimizes the effort required for migration. SageMaker built-in algorithms are pre-packaged models, not for custom scripts. SageMaker Canvas is a no-code/low-code solution for business analysts, not for migrating custom PyTorch code. SageMaker JumpStart provides pre-trained models and solutions, which isn't the primary goal when reusing existing custom scripts.