Sebastian Raschka • 5/12/2024

How Good Are the Latest Open LLMs? And Is DPO Better Than PPO?

This article provides a technical review of four major open-source LLM releases from April 2024: Mixtral 8x22B, Meta's Llama 3, Microsoft's Phi-3, and Apple's OpenELM. It compares their architectures and performance, and includes a detailed analysis of reinforcement learning methods for LLM alignment, specifically examining whether Direct Preference Optimization (DPO) is superior to Proximal Policy Optimization (PPO).

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#llm #Reinforcement Learning #Transformer