# DPO Ailesi: SimPO + IPO + CPO + RPO + APO — 5 Varyantın Karar Matrisi

> Source: https://sukruyusufkaya.com/learn/fine-tuning-cookbook/ftc-dpo-family-simpo-ipo-cpo-rpo
> Updated: 2026-08-22T10:50:57.690Z
> Category: Fine-Tuning Cookbook (Model-by-Model)
> Module: Part XI — Alignment & Preference Optimization
**TLDR:** DPO ailesi 2023-2024'te genişledi: SimPO (Meng et al.) — length-normalized, IPO (Azar et al.) — overfit fix, CPO (Xu et al.) — KL ratio fix, RPO (Iterative) — online iterative, APO (anchored). Her birinin loss formula, hangi durumda hangisi, RTX 4090 hızlı karşılaştırma.