# Unsloth

Framework · https://godooo.ai/en/framework/unsloth

> Unsloth is an open-source AI framework, launched in 2023, made for developers.

A framework and local app for fine-tuning and running LLMs faster and with less memory.

Main jobs: Fine-tuning. It is open source and free to use. You can use it offline on your own machine, as a desktop app, in the terminal, through an API and on your own server.

## At a glance

- **Type:** [Framework](https://godooo.ai/en/browse#framework)
- **Launched:** 2023
- **Galaxy:** [Models & APIs](https://godooo.ai/en/galaxy/builders)
- **Open source:** Yes · Apache-2.0
- **Source code:** [github.com/unslothai/unsloth](https://github.com/unslothai/unsloth)
- **GitHub stars:** 76,689
- **How you run it:** Runs offline · Desktop · Terminal · API · Self-host
- **Made for:** Developers
- **Website:** [unsloth.ai](https://unsloth.ai/docs)
- **Also known as:** Unsloth Studio

## What it can do

- **[Fine-tuning](https://godooo.ai/en/capability/fine-tuning)** — main job, _proposed by a machine, awaiting calibration_. “Fine-tuning: Train LLMs, diffusion, TTS, and embedding models 2× faster with 70% less VRAM with no accuracy loss” (read on [unsloth.ai](https://unsloth.ai/docs), 2026-09-24)
- **[Model training](https://godooo.ai/en/capability/model-training)** — supported, _proposed by a machine, awaiting calibration_. “Complete support: Supports reinforcement learning , LoRA, QLoRA, full fine tuning, pretraining, RL, GRPO, DPO, and FP8.” (read on [unsloth.ai](https://unsloth.ai/docs), 2026-09-24)
- **[Run models locally](https://godooo.ai/en/capability/local-inference)** — supported, _proposed by a machine, awaiting calibration_. “Unsloth lets you run and train AI models on your own local hardware via an open-source UI.” (read on [unsloth.ai](https://unsloth.ai/docs), 2026-09-24)

## Alternatives

- **[MLX](https://godooo.ai/en/framework/mlx)** (Open source, free): Also does: Model training, Run models locally, Fine-tuning
- **[nanoGPT](https://godooo.ai/en/framework/nanogpt)** (Open source, free): Also does: Fine-tuning, Model training
- **[Kohya's GUI](https://godooo.ai/en/product/kohya-ss)** (Open source, free): Also does: Fine-tuning, Model training
- **[LlamaFactory](https://godooo.ai/en/framework/llamafactory)** (Open source, free): Also does: Fine-tuning, Model training
- **[TRL](https://godooo.ai/en/framework/trl)** (Open source, free): Also does: Fine-tuning, Model training
- **[Axolotl](https://godooo.ai/en/framework/axolotl)** (Open source, free): Also does: Fine-tuning
- **[PEFT](https://godooo.ai/en/framework/peft)** (Open source, free): Also does: Fine-tuning
- **[Hugging Face](https://godooo.ai/en/product/huggingface)** (Free plan + paid upgrades): Also does: Fine-tuning, Model training
- **[ModelScope](https://godooo.ai/en/product/modelscope)** (Open source, free): Also does: Fine-tuning, Model training
- **[Sentence Transformers](https://godooo.ai/en/framework/sentence-transformers)** (Open source, free): Also does: Fine-tuning, Model training
- **[Together AI](https://godooo.ai/en/product/together)** (Paid): Also does: Fine-tuning, Model training
- **[Modal](https://godooo.ai/en/product/modal)** (Paid): Also does: Fine-tuning, Model training

## Connections

- **Applies:** [LoRA](https://godooo.ai/en/concept/lora)
- **Built with:** [PyTorch](https://godooo.ai/en/framework/pytorch)

## Questions

### What is Unsloth?

Unsloth is an open-source AI framework, launched in 2023, made for developers. A framework and local app for fine-tuning and running LLMs faster and with less memory.

### Is Unsloth free?

Yes. Unsloth is open source (Apache-2.0) and free to use.

### Is Unsloth open source?

Yes, under the Apache-2.0 license. The source code is at https://github.com/unslothai/unsloth.

### Can Unsloth run locally?

Yes. Unsloth can run offline on your own machine. It can also be self-hosted on your own server.

### What can Unsloth do?

Main jobs: Fine-tuning. It can also do: Model training, Run models locally.

### What are open-source alternatives to Unsloth?

Open-source ones: MLX, nanoGPT, Kohya's GUI, LlamaFactory, TRL, Axolotl, PEFT and ModelScope. Others: Hugging Face, Together AI and Modal.

## Sources

- [unsloth.ai](https://unsloth.ai/docs) — checked 2026-09-24
- [github.com](https://github.com/unslothai/unsloth)

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Last updated 2026-09-24 · sources checked 2026-09-24 · Markdown version of https://godooo.ai/en/framework/unsloth. Every page on this site has one: add .md to its address.