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·1天前·开发者社区 · RSS

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

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Mistral模型发布

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推荐理由

Mistral 相关模型动态已经出现,适合跟踪能力变化、生态影响和后续可用性。

AI 摘要

一位用户成功地对一个Mistral 7b LLM进行了微调,使其性能超越了昂贵的基础模型,并节省了30万美元。该用户最初对微调的效用持怀疑态度,认为所有相关问题都可以通过RAG解决,但现在他们积极推荐微调,并强调其有效性。他们表示可以提供微调管道方面的帮助,并坚信这种方法“肯定有效!”

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!