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·1 days ago·Dev community · RSS

How to Fine-Tune an LLM: An End-to-End Guide

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AI summary

A user successfully fine-tuned a Mistral 7b LLM, enabling it to outperform a more expensive foundational model and resulting in $300k in savings.…

I ended up fine tuning a mistral 7b to outperform our costly foundational model and saved $300k. I previously thought that fine tuning was pointless (it's definitely not) and that all these problems could be solved with RAG (they can't).

The truth is, a LoRA/QLoRA adapter is extremely useful for many cases, and can dramatically outperform RAG with aggressive system prompts.

With this guide, I want to help people understand the reasonableness of QLoRA on a consumer grade GPU (you might even be able to fine-tune on a colab t4).

Let me know if I can help you out with your fine tuning pipeline. It certainly works!