peft-fine-tuning

Fine-tune 7B-70B models with LoRA and QLoRA adapters.

Updated Apr 20, 2026
One-click install
npx skills add https://github.com/matthew-johnson/hermes-agent --skill peft-fine-tuning-matthew-johnson
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: peft-fine-tuning
Source: https://github.com/matthew-johnson/hermes-agent/tree/main/optional-skills/mlops/peft
Command: npx skills add https://github.com/matthew-johnson/hermes-agent --skill peft-fine-tuning-matthew-johnson

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires peft>=0.13.0, transformers>=4.45.0, torch>=2.0.0, bitsandbytes>=0.43.0, and includes references (resource) components.

What problem does it solve?

Parameter-efficient fine-tuning enables training large language models by updating only a small subset of parameters using adapters like LoRA and QLoRA, dramatically reducing memory and compute requirements.

Core Features & Use Cases

  • LoRA/QLoRA and other adapters enable memory-efficient fine-tuning across 7B-70B models.
  • Supports multi-adapter serving, adapter merging for deployment, and rapid iteration in research and production.
  • Suitable for dimension-restricted environments and scenarios requiring quick experimentation with many variants.

Quick Start

Install the required libraries and configure a LoRA-based fine-tuning workflow as demonstrated in the examples.

Frequently Asked Questions about peft-fine-tuning

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I fine-tune large language models on GPU-constrained environments?▼

Fine-tune large language models on GPU-constrained environments by training only a small subset of parameters using PEFT methods like LoRA and QLoRA, which dramatically reduce memory and compute requirements for 7B-70B models.

What is the difference between LoRA and QLoRA for parameter-efficient fine-tuning?▼

LoRA and QLoRA are both parameter-efficient fine-tuning methods. QLoRA combines LoRA adapters with quantization to further reduce memory usage, enabling fine-tuning of larger models under tighter GPU constraints.

Can I run multi-adapter workflows and merge adapters for deployment with PEFT?▼

Yes, PEFT supports multi-adapter serving and adapter merging for deployment, allowing rapid iteration with many variants and efficient production integration.

Do I need bitsandbytes to use QLoRA for memory-efficient training?▼

Yes, bitsandbytes is a required dependency for QLoRA, providing the quantization capabilities necessary to achieve memory-efficient training alongside peft, transformers, and torch.

What are the limitations of using parameter-efficient fine-tuning for 7B-70B models?▼

Parameter-efficient fine-tuning updates only a small subset of parameters, which reduces memory and compute but may limit performance compared to full fine-tuning, especially for complex tasks requiring deeper model adaptation.