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Simple Preference Optimization for LLM alignment. Reference-free alternative to DPO with better performance (+6.4 points on AlpacaEval 2.0). No reference model needed, more efficient than DPO. Use for preference alignment when want simpler, faster training than DPO/PPO.

skills/mlops/training/simpo/SKILL.md

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# SimPO - Simple Preference Optimization

## Quick start

SimPO is a reference-free preference optimization method that outperforms DPO without needing a reference model.

**Installation**:
```bash
# Create environment
conda create -n simpo python=3.10 && conda activate simpo

# Install PyTorch 2.2.2
# Visit: https://pytorch.org/get-started/locally/