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unsloth

45,239
3,668
Python

Project Description

Fine-tuning & Reinforcement Learning for LLMs. 🦥 Train OpenAI gpt-oss, Qwen3, Llama 4, DeepSeek-R1, Gemma 3, TTS 2x faster with 70% less VRAM.

unsloth: Fine-tuning & Reinforcement Learning for LLMs. 🦥 Train OpenAI gpt-oss, Qwen3, Llama 4, DeepSeek-R1,

Project Title

unsloth — Accelerate LLM Fine-Tuning and Reinforcement Learning with Reduced VRAM

Overview

Unsloth is an open-source Python project designed to enhance the fine-tuning and reinforcement learning processes for large language models (LLMs). It stands out by enabling faster training (up to 2x) with significantly reduced VRAM usage (up to 80% less), making it an efficient solution for developers working with LLMs like OpenAI gpt-oss, Qwen3, Llama 4, and others.

Key Features

  • Accelerated fine-tuning for various LLMs with up to 2x faster performance
  • Reduced VRAM usage by up to 80%, enhancing training efficiency
  • Support for multiple LLMs including gpt-oss, Qwen3, Llama 4, and Mistral

Use Cases

  • Researchers and developers needing to fine-tune LLMs for specific tasks or datasets
  • Teams looking to optimize resource usage during model training and deployment
  • Educational institutions using LLMs for teaching and research purposes

Advantages

  • Significantly faster training times, allowing for quicker iterations and experimentation
  • Reduced memory requirements, making it accessible to users with limited hardware resources
  • Community support through Discord and comprehensive documentation

Limitations / Considerations

  • The project's effectiveness may vary depending on the specific LLM and dataset used
  • Users need to be familiar with Python and the basics of machine learning to utilize the project effectively
  • The project's license is currently unknown, which may affect its use in commercial applications

Similar / Related Projects

  • Hugging Face Transformers: A widely-used library for state-of-the-art NLP, differing in its broader scope and community size.
  • LLM Optimizers: Other projects focusing on optimizing LLM performance, but may not offer the same speed and VRAM reduction as Unsloth.
  • DeepSpeed: A deep learning optimization library by Microsoft, known for its advanced optimization techniques but with a different focus on large-scale training.

Basic Information

📊 Project Information

  • Project Name: unsloth
  • GitHub URL: https://github.com/unslothai/unsloth
  • Programming Language: Python
  • ⭐ Stars: 45,072
  • 🍴 Forks: 3,652
  • 📅 Created: 2023-11-29
  • 🔄 Last Updated: 2025-09-04

🏷️ Project Topics

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🔗 Related Resource Links

📚 Documentation

🌐 Related Websites

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Project Information

Created on 11/29/2023
Updated on 9/8/2025