unsloth

Fine-tune large language models with Unsloth using LoRA/QLoRA adapters.

Updated Apr 10, 2026

Search Tags:#llm #fine-tuning #qlora #gguf #loRA #memory-efficiency #unsloth

Ready to run

npx skills add https://github.com/KarlinskyS/hermesSkills --skill unsloth-karlinskys

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: unsloth
Source: https://github.com/KarlinskyS/hermesSkills/tree/main/mlops/training/unsloth
Command: npx skills add https://github.com/KarlinskyS/hermesSkills --skill unsloth-karlinskys

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Unsloth provides a fast, memory-efficient workflow for fine-tuning large language models using LoRA and QLoRA adapters to reduce training time and VRAM usage.

Core Features & Use Cases

2-5x faster fine-tuning with adapter-based training and 4-bit quantization, enabling large models on consumer hardware.
Significant memory savings (50-80%), supporting local development, dockerized environments, and diverse inference backends like Ollama, llama.cpp, or vLLM.
Use cases include domain adaptation, RL-based fine-tuning workflows, and offline experimentation across models such as Llama, Mistral, Gemma, and Qwen.

Quick Start

Start a basic fine-tuning workflow on a small dataset to see Unsloth in action.

Frequently Asked Questions about unsloth

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

FAQPage Schema

How do I fine-tune large language models without running out of VRAM?▼

You can fine-tune large language models with minimal VRAM by applying LoRA and QLoRA adapters. This approach achieves 50-80% memory savings, enabling 4-bit quantized training of models like Llama and Mistral on consumer hardware.

Can I use QLoRA for domain adaptation on consumer GPUs?▼

Yes, QLoRA enables rapid domain adaptation on consumer GPUs by using 4-bit quantization. This memory-efficient fine-tuning method reduces VRAM usage by 50-80% while accelerating training speed by 2-5 times.

What is the best way to export fine-tuned LLM adapters for local inference?▼

After fine-tuning with LoRA or QLoRA, you can export the adapters for local inference. The workflow supports deployment across diverse backends including Ollama, llama.cpp, and vLLM for offline experimentation.

How does 4-bit quantization accelerate LLM fine-tuning?▼

4-bit quantization accelerates LLM fine-tuning by drastically reducing memory overhead. Combined with LoRA adapters, it enables 2-5x faster training speeds and 50-80% memory savings, allowing large models to run on standard hardware.

Do I need PyTorch and Transformers to run QLoRA fine-tuning workflows?▼

Yes, running QLoRA fine-tuning workflows requires libraries such as PyTorch, Transformers, TRL, Datasets, and PEFT. These dependencies provide the necessary environment for end-to-end model training and adapter integration.

Why does memory-efficient fine-tuning matter for RL-based workflows?▼

Memory-efficient fine-tuning matters for RL-based workflows because it lowers the hardware barrier. By utilizing 4-bit quantization and LoRA, you can run complex reinforcement learning fine-tuning locally or in dockerized environments without excessive VRAM.