---
title: "Discussion on \"Fine-Tuning an LLM: What Actually Happens Under the Hood?\" | Hashnode"
description: "Discussion on \"Fine-Tuning an LLM: What Actually Happens Under the Hood?\". Learn how LLM fine-tuning works under the hood, including training, parameters, LoRA, PEFT, and the differences between fine-tuning, RAG"
url: "https://hashnode.com/posts/fine-tuning-an-llm-what-actually-happens-under-the-hood/6aacfeb891ce0511ce99e211"
---

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# [Fine-Tuning an LLM: What Actually Happens Under the Hood?](https://tahahussein.hashnode.dev/fine-tuning-an-llm-what-actually-happens-under-the-hood?utm_source=hashnode&utm_medium=feed)

Learn how LLM fine-tuning works under the hood, including training, parameters, LoRA, PEFT, and the differences between fine-tuning, RAG

Sep 18 · 7 min read · tahahussein.hashnode.dev  
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## Written by

[Taha hussein](https://hashnode.com/@tahahussein)

@tahahussein · Egypt,Cairo

  
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AI & Machine Learning developer | PyTorch • Transformers • Deep Learning • LLMs | Building and explaining AI from scratch.

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