peft-fine-tuning

Fine-tune large language models with LoRA and QLoRA on limited GPUs.

Updated Jun 17, 2026
One-click install
npx skills add https://github.com/cxnaive/hermes-agent-llbot --skill peft-fine-tuning-cxnaive
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: peft-fine-tuning
Source: https://github.com/cxnaive/hermes-agent-llbot/tree/main/optional-skills/mlops/peft
Command: npx skills add https://github.com/cxnaive/hermes-agent-llbot --skill peft-fine-tuning-cxnaive

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires peft, transformers, torch, bitsandbytes, and includes references (resource) components.

What problem does it solve?

This Skill addresses the high computational cost and memory requirements of fine-tuning large language models, allowing you to adapt powerful models on consumer-grade GPUs.

Core Features & Use Cases

  • Memory-Efficient Training: Utilizes LoRA and QLoRA to train models with a fraction of the parameters and memory.
  • Multi-Adapter Support: Enables switching between different task-specific adapters at runtime without reloading the base model.
  • Use Case: Fine-tune a Llama-3.1-8B model on your own dataset using a single RTX 4090, or adapt a 70B model using QLoRA on a 24GB GPU.

Quick Start

Use the peft-fine-tuning skill to apply LoRA to the meta-llama/Llama-3.1-8B model using the provided training configuration.

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 a Llama model on a single consumer GPU without running out of memory?

You can fine-tune Llama models on consumer hardware using parameter-efficient methods like LoRA and QLoRA to minimize GPU memory consumption. This approach trains a fraction of the parameters, allowing high-quality model updates on limited resources like a single RTX 4090.

What is the difference between LoRA and QLoRA for large language model fine-tuning?

LoRA fine-tunes models by training low-rank adapter matrices, while QLoRA further reduces memory by quantizing the base model. Both parameter-efficient methods adapt large language models for domain-specific tasks using a fraction of the memory required for full fine-tuning.

Can I fine-tune a 70B model on a 24GB GPU using PEFT?

Yes, you can adapt a 70B model on a 24GB GPU using QLoRA. This memory-optimized workflow quantizes the base model and trains lightweight adapters, making it possible to fine-tune large language models on limited hardware resources.

Does this fine-tuning workflow support architectures other than Llama?

Yes, the fine-tuning workflow supports diverse architectures including Llama, Mistral, and Falcon. You can apply parameter-efficient adaptation techniques to these models for both domain-specific adaptation and instruction tuning.

How do I switch between different fine-tuned adapters without reloading the base model?

Multi-adapter support enables switching between different task-specific adapters at runtime without reloading the base model. This allows you to maintain multiple fine-tuned versions and dynamically load the appropriate adapter for your specific task.