implementing-llms-litgpt

Implement and fine-tune LLMs using LitGPT with LoRA/QLoRA.

3|Updated Feb 21, 2026
One-click install
npx skills add https://github.com/ihatesea69/HieuNghi-AI-Skills --skill implementing-llms-litgpt-ihatesea69
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: implementing-llms-litgpt
Source: https://github.com/ihatesea69/HieuNghi-AI-Skills/tree/main/airesearch_skills/01-model-architecture/litgpt
Command: npx skills add https://github.com/ihatesea69/HieuNghi-AI-Skills --skill implementing-llms-litgpt-ihatesea69

SYSTEM DOCUMENTATION & REQUIREMENTS

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

What problem does it solve?

This Skill provides clean, single-file implementations of over 20 LLM architectures, enabling users to easily implement, train, and fine-tune models for various AI research and development tasks.

Core Features & Use Cases

  • Model Implementation: Access to 20+ pretrained LLM architectures (Llama, Gemma, Phi, Mistral, Qwen) with readable code.
  • Fine-tuning: Supports LoRA, QLoRA, and full fine-tuning on custom datasets.
  • Pretraining: Enables training new models from scratch.
  • Deployment: Tools for converting and deploying models.
  • Use Case: A researcher wants to understand the internal workings of the Llama 3 model and fine-tune it on a specific dataset for a new application. They can use this Skill to load the base model, prepare their data, and run a LoRA fine-tuning job.

Quick Start

Use the implementing-llms-litgpt skill to fine-tune the microsoft/phi-2 model on a custom dataset located at data/my_dataset.json using LoRA.

Frequently Asked Questions about implementing-llms-litgpt

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

FAQPage Schema
How do I fine-tune a Llama or Mistral model using LoRA?

You can fine-tune LLMs using LitGPT by loading pretrained architectures like Llama or Mistral and applying parameter-efficient methods like LoRA on your custom datasets.

What is the best way to understand the internal architecture of models like Qwen or Phi?

To understand LLM architectures, this skill provides clean, single-file implementations of models like Qwen and Phi without abstraction layers, enabling readable code for educational understanding and direct application.

Can I pretrain a large language model from scratch using LitGPT?

Yes, you can pretrain LLMs from scratch using LitGPT, which provides the necessary training loops and single-file architecture implementations to build new models without hidden abstraction layers.

Does LitGPT support full fine-tuning or only LoRA and QLoRA?

LitGPT supports full fine-tuning alongside parameter-efficient methods like LoRA and QLoRA, allowing you to choose between updating all model weights or using low-rank adaptations based on your compute resources.

How do I prepare a custom JSON dataset for LLM fine-tuning?

To prepare custom datasets for LLM fine-tuning, you format your data into a JSON file, which LitGPT then ingests to run LoRA or QLoRA adaptation jobs on pretrained models like microsoft/phi-2.