Fine-tuning 20B LLMs with RLHF on a 24GB consumer GPU

Practical AI: Tools, Models & Frameworksfine-tuning

What changed

trl with peft to make Large Language Model (LLM) fine-tuning with Reinforcement Learning more accessible to anyone! In this post, we explain why this is a competitive alternative to existing fine-tuning approaches. Note peft is a general tool that can be applied to many ML use-cases but it’s particularly interesting for RLHF as this method is especially memory-hungry!

Why it matters

A concrete addition to Practical AI: Tools, Models & Frameworks: it changes what's available to builders today rather than being general commentary.

How it compares

Related prior coverage to compare against:

  • (LoRA) Fine-Tuning FLUX.1-dev on Consumer Hardware
  • Fine-tuning now available for GPT-4o
  • Fine-tuning LLMs to 1.58bit: extreme quantization made easy

Sources