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Training types - Amazon SageMaker AI

Training types

Training types determine how model weights are updated during customization. Every customization technique (SFT, DPO, RFT) can be combined with either training type. Choose based on your quality requirements, compute budget, and use case.

LoRA — Low-Rank Adaptation

Trains a small set of adapter weights. Lower cost, faster training. Required for continuous customization.

FFT — Full Fine-Tuning

Updates all model weights. Higher compute, deeper customization. Best for large domain shifts.