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Panoramic Analysis of Post-Training Alignment Technologies for Large Models: A Practical Guide from Full Fine-Tuning to DPO Preference Optimization

An in-depth exploration of three core technologies in the post-training phase of large language models: full fine-tuning (FFT) for language modeling, parameter-efficient fine-tuning (PEFT) for skill acquisition, and direct preference optimization (DPO) for behavior alignment, helping developers understand the trade-offs and applicable scenarios of each technology.

大语言模型后训练全量微调FFT参数高效微调PEFTLoRA直接偏好优化DPORLHF
Published 2026-05-23 02:10Recent activity 2026-05-23 02:17Estimated read 1 min
Panoramic Analysis of Post-Training Alignment Technologies for Large Models: A Practical Guide from Full Fine-Tuning to DPO Preference Optimization
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Section 01

导读 / 主楼:Panoramic Analysis of Post-Training Alignment Technologies for Large Models: A Practical Guide from Full Fine-Tuning to DPO Preference Optimization

Introduction / Main Floor: Panoramic Analysis of Post-Training Alignment Technologies for Large Models: A Practical Guide from Full Fine-Tuning to DPO Preference Optimization

An in-depth exploration of three core technologies in the post-training phase of large language models: full fine-tuning (FFT) for language modeling, parameter-efficient fine-tuning (PEFT) for skill acquisition, and direct preference optimization (DPO) for behavior alignment, helping developers understand the trade-offs and applicable scenarios of each technology.