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Daniel Han 2dce261f4a Install ROCm SDK wheels and relax HIP SDK prerequisite on Windows
The previous Windows AMD install was incomplete in two material ways,
both surfaced while verifying whether PyTorch has upstream Windows ROCm
wheels (it does not -- pytorch.org's get-started page states "ROCm is
not available on Windows" and every wheel under download.pytorch.org
/whl/rocm7.x is manylinux_2_28_x86_64 only; upstream work is tracked in
pytorch/pytorch#159520 and targeted for a future release).

repo.radeon.com therefore remains the only source for Windows ROCm
torch until that RFC lands, and AMD's install docs at
rocm.docs.amd.com/projects/radeon-ryzen/.../install-pytorch.html
document a two-step pip procedure that we were only implementing half
of. Fixing both bugs here so the PR actually produces a working
torch.version.hip import on a fresh Windows host.

Bug 1: missing ROCm SDK wheels install step

AMD's procedure first installs rocm_sdk_core, rocm_sdk_devel,
rocm_sdk_libraries_custom, and rocm-<ver>.tar.gz (about 1.4 GB
total). These wheels ship the ROCm runtime libraries that torch links
against at import time. Without them `import torch` fails with missing
DLL errors even when the torch wheels themselves are installed. Both
7.1.1 and 7.2.1 need this step; 7.1.1 stamps its SDK wheels with the
`0.1.dev0` version string while 7.2.1 uses `7.2.1`.

This adds the 4 SDK URLs per release to the wheel map and installs
them as Step 1 ahead of the existing torch install (Step 2). Both
steps are passed in a single pip call each so pip's dep resolver does
not reset torch between wheels (matches AMD's troubleshooting guidance
for the same failure mode).

Bug 2: HIP SDK was a hard prerequisite, should be optional

install.ps1 / setup.ps1 / install_python_stack.py all errored out when
$env:HIP_PATH was absent, pointing users at the HIP SDK download page.
But the HIP SDK developer toolkit at C:\Program Files\AMD\ROCm\ is for
people compiling HIP kernels, not for running PyTorch. AMD's docs list
only (a) the AMD graphics driver 26.2.2+ and (b) Python 3.12 as
prerequisites. Gating on HIP_PATH was blocking the exact audience that
#4280 is about -- regular Radeon users running Unsloth.

HIP_PATH is now an optional version hint. When present and valid we
use it to select the matching ROCm release; when absent or unsupported
(e.g. HIP 6.4) we fall back to the newest stable release
(_DEFAULT_WINDOWS_ROCM_VERSION = (7, 2)) and print a visible note
pointing at the graphics driver download page. The HIP SDK install
prompts have been removed from all three files.

Use pip (not uv) for the Radeon wheels

Both the SDK and torch install steps call `python -m pip install`
directly via the new force_pip=True path added in the previous commit.
AMD's documented procedure uses pip, uv has known wheel-corruption
issues on similar large ROCm wheels (unslothai/unsloth#4966 for
bitsandbytes), and pip is the combination AMD validates. This matches
the fix applied to bitsandbytes on Linux ROCm.
2026-04-11 01:14:23 +00:00
.github Update dependabot.yml (#4915) 2026-04-08 03:39:50 -07:00
images Add files via upload 2026-04-02 03:00:10 -07:00
scripts Formatting & bug fixes (#3563) 2025-11-07 06:00:22 -08:00
studio Install ROCm SDK wheels and relax HIP SDK prerequisite on Windows 2026-04-11 01:14:23 +00:00
tests fix: check find() return value before adding offset in try_fix_tokenizer (#4923) 2026-04-09 06:15:46 -07:00
unsloth Fix Gemma-4 GRPO catastrophic KL divergence with TRL 1.0.0+ (#4934) 2026-04-10 07:58:15 -07:00
unsloth_cli studio: unify Windows installer/setup logging style, verbosity controls, and startup messaging (#4651) 2026-03-30 00:53:23 -07:00
.gitattributes EOL LF (unix line endings) normalization (#3478) 2025-10-17 16:22:42 -07:00
.gitignore Improve AI Assist: Update default model, model output parsing, logging, and dataset mapping UX (#4323) 2026-03-16 16:04:35 +04:00
.pre-commit-ci.yaml pre-commit CI config (#3565) 2025-11-07 14:44:18 -08:00
.pre-commit-config.yaml [pre-commit.ci] pre-commit autoupdate (#4879) 2026-04-07 22:50:48 -07:00
build.sh perf(studio): upgrade to Vite 8 + auto-install bun for faster frontend builds (#4522) 2026-03-25 04:27:41 -07:00
cli.py Rename cli/ to unsloth_cli/ to fix namespace collision with stringzilla (#4393) 2026-03-17 20:40:21 -07:00
CODE_OF_CONDUCT.md Update CODE_OF_CONDUCT.md 2025-10-25 19:31:05 -07:00
CONTRIBUTING.md Revert "Improve documentation on how to export model from Colab" 2026-03-13 22:38:41 -07:00
COPYING Rename cli/ to unsloth_cli/ to fix namespace collision with stringzilla (#4393) 2026-03-17 20:40:21 -07:00
install.ps1 Install ROCm SDK wheels and relax HIP SDK prerequisite on Windows 2026-04-11 01:14:23 +00:00
install.sh Pin bitsandbytes to continuous-release_main on ROCm (4-bit decode fix) (#4954) 2026-04-10 06:25:39 -07:00
install_gemma4_mlx.sh Fix/gemma4 install script (#4815) 2026-04-02 22:03:35 -07:00
LICENSE Rename cli/ to unsloth_cli/ to fix namespace collision with stringzilla (#4393) 2026-03-17 20:40:21 -07:00
pyproject.toml Update 2026-04-06 09:20:17 -07:00
README.md Gemma 4 update.md 2026-04-02 22:54:03 -07:00
unsloth-cli.py Merge pull request #3612 from Vangmay/feature/raw-text-dataprep 2026-01-08 03:38:15 -08:00

Unsloth logo

Run and train AI models with a unified local interface.

FeaturesQuickstartNotebooksDocumentationReddit

unsloth studio ui homepage

Unsloth Studio (Beta) lets you run and train text, audio, embedding, vision models on Windows, Linux and macOS.

Features

Unsloth provides several key features for both inference and training:

Inference

Training

  • Train and RL 500+ models up to 2x faster with up to 70% less VRAM, with no accuracy loss.
  • Custom Triton and mathematical kernels. See some collabs we did with PyTorch and Hugging Face.
  • Data Recipes: Auto-create datasets from PDF, CSV, DOCX etc. Edit data in a visual-node workflow.
  • Reinforcement Learning (RL): The most efficient RL library, using 80% less VRAM for GRPO, FP8 etc.
  • Supports full fine-tuning, RL, pretraining, 4-bit, 16-bit and, FP8 training.
  • Observability: Monitor training live, track loss and GPU usage and customize graphs.
  • Multi-GPU training is supported, with major improvements coming soon.

Quickstart

Unsloth can be used in two ways: through Unsloth Studio, the web UI, or through Unsloth Core, the code-based version. Each has different requirements.

Unsloth Studio (web UI)

Unsloth Studio (Beta) works on Windows, Linux, WSL and macOS.

  • CPU: Supported for Chat and Data Recipes currently
  • NVIDIA: Training works on RTX 30/40/50, Blackwell, DGX Spark, Station and more
  • macOS: Currently supports chat and Data Recipes. MLX training is coming very soon
  • AMD: Chat + Data works. Train with Unsloth Core. Studio support is out soon.
  • Coming soon: Training support for Apple MLX, AMD, and Intel.
  • Multi-GPU: Available now, with a major upgrade on the way

macOS, Linux, WSL:

curl -fsSL https://unsloth.ai/install.sh | sh

Windows:

irm https://unsloth.ai/install.ps1 | iex

Launch

unsloth studio -H 0.0.0.0 -p 8888

Update

To update, use the same install commands as above. Or run (does not work on Windows):

unsloth studio update

Docker

Use our Docker image unsloth/unsloth container. Run:

docker run -d -e JUPYTER_PASSWORD="mypassword" \
  -p 8888:8888 -p 8000:8000 -p 2222:22 \
  -v $(pwd)/work:/workspace/work \
  --gpus all \
  unsloth/unsloth

Developer, Nightly, Uninstall

To see developer, nightly and uninstallation etc. instructions, see advanced installation.

Unsloth Core (code-based)

Linux, WSL:

curl -LsSf https://astral.sh/uv/install.sh | sh
uv venv unsloth_env --python 3.13
source unsloth_env/bin/activate
uv pip install unsloth --torch-backend=auto

Windows:

winget install -e --id Python.Python.3.13
winget install --id=astral-sh.uv  -e
uv venv unsloth_env --python 3.13
.\unsloth_env\Scripts\activate
uv pip install unsloth --torch-backend=auto

For Windows, pip install unsloth works only if you have PyTorch installed. Read our Windows Guide. You can use the same Docker image as Unsloth Studio.

AMD, Intel:

For RTX 50x, B200, 6000 GPUs: uv pip install unsloth --torch-backend=auto. Read our guides for: Blackwell and DGX Spark.
To install Unsloth on AMD and Intel GPUs, follow our AMD Guide and Intel Guide.

📒 Free Notebooks

Train for free with our notebooks. You can use our new free Unsloth Studio notebook to run and train models for free in a web UI. Read our guide. Add dataset, run, then deploy your trained model.

Model Free Notebooks Performance Memory use
Gemma 4 (E2B) ▶️ Start for free 1.5x faster 50% less
Qwen3.5 (4B) ▶️ Start for free 1.5x faster 60% less
gpt-oss (20B) ▶️ Start for free 2x faster 70% less
Qwen3.5 GSPO ▶️ Start for free 2x faster 70% less
gpt-oss (20B): GRPO ▶️ Start for free 2x faster 80% less
Qwen3: Advanced GRPO ▶️ Start for free 2x faster 70% less
embeddinggemma (300M) ▶️ Start for free 2x faster 20% less
Mistral Ministral 3 (3B) ▶️ Start for free 1.5x faster 60% less
Llama 3.1 (8B) Alpaca ▶️ Start for free 2x faster 70% less
Llama 3.2 Conversational ▶️ Start for free 2x faster 70% less
Orpheus-TTS (3B) ▶️ Start for free 1.5x faster 50% less

🦥 Unsloth News

  • Gemma 4: Run and train Googles new models directly in Unsloth Studio! Blog
  • Introducing Unsloth Studio: our new web UI for running and training LLMs. Blog
  • Qwen3.5 - 0.8B, 2B, 4B, 9B, 27B, 35-A3B, 112B-A10B are now supported. Guide + notebooks
  • Train MoE LLMs 12x faster with 35% less VRAM - DeepSeek, GLM, Qwen and gpt-oss. Blog
  • Embedding models: Unsloth now supports ~1.8-3.3x faster embedding fine-tuning. BlogNotebooks
  • New 7x longer context RL vs. all other setups, via our new batching algorithms. Blog
  • New RoPE & MLP Triton Kernels & Padding Free + Packing: 3x faster training & 30% less VRAM. Blog
  • 500K Context: Training a 20B model with >500K context is now possible on an 80GB GPU. Blog
  • FP8 & Vision RL: You can now do FP8 & VLM GRPO on consumer GPUs. FP8 BlogVision RL
  • gpt-oss by OpenAI: Read our RL blog, Flex Attention blog and Guide.

📥 Advanced Installation

The below advanced instructions are for Unsloth Studio. For Unsloth Core advanced installation, view our docs.

Developer installs: macOS, Linux, WSL:

git clone https://github.com/unslothai/unsloth
cd unsloth
./install.sh --local
unsloth studio -H 0.0.0.0 -p 8888

Then to update :

unsloth studio update

Developer installs: Windows PowerShell:

git clone https://github.com/unslothai/unsloth.git
cd unsloth
Set-ExecutionPolicy -Scope Process -ExecutionPolicy Bypass
.\install.ps1 --local
unsloth studio -H 0.0.0.0 -p 8888

Then to update :

unsloth studio update

Nightly: MacOS, Linux, WSL:

git clone https://github.com/unslothai/unsloth
cd unsloth
git checkout nightly
./install.sh --local
unsloth studio -H 0.0.0.0 -p 8888

Then to launch every time:

unsloth studio -H 0.0.0.0 -p 8888

Nightly: Windows:

Run in Windows Powershell:

git clone https://github.com/unslothai/unsloth.git
cd unsloth
git checkout nightly
Set-ExecutionPolicy -Scope Process -ExecutionPolicy Bypass
.\install.ps1 --local
unsloth studio -H 0.0.0.0 -p 8888

Then to launch every time:

unsloth studio -H 0.0.0.0 -p 8888

Uninstall

You can uninstall Unsloth Studio by deleting its install folder usually located under $HOME/.unsloth/studio on Mac/Linux/WSL and %USERPROFILE%\.unsloth\studio on Windows. Using the rm -rf commands will delete everything, including your history, cache:

  • MacOS, WSL, Linux: rm -rf ~/.unsloth/studio
  • Windows (PowerShell): Remove-Item -Recurse -Force "$HOME\.unsloth\studio"

For more info, see our docs.

Deleting model files

You can delete old model files either from the bin icon in model search or by removing the relevant cached model folder from the default Hugging Face cache directory. By default, HF uses:

  • MacOS, Linux, WSL: ~/.cache/huggingface/hub/
  • Windows: %USERPROFILE%\.cache\huggingface\hub\
Type Links
  Discord Join Discord server
  r/unsloth Reddit Join Reddit community
📚 Documentation & Wiki Read Our Docs
  Twitter (aka X) Follow us on X
🔮 Our Models Unsloth Catalog
✍️ Blog Read our Blogs

Citation

You can cite the Unsloth repo as follows:

@software{unsloth,
  author = {Daniel Han, Michael Han and Unsloth team},
  title = {Unsloth},
  url = {https://github.com/unslothai/unsloth},
  year = {2023}
}

If you trained a model with 🦥Unsloth, you can use this cool sticker!  

License

Unsloth uses a dual-licensing model of Apache 2.0 and AGPL-3.0. The core Unsloth package remains licensed under Apache 2.0, while certain optional components, such as the Unsloth Studio UI are licensed under the open-source license AGPL-3.0.

This structure helps support ongoing Unsloth development while keeping the project open source and enabling the broader ecosystem to continue growing.

Thank You to

  • The llama.cpp library that lets users run and save models with Unsloth
  • The Hugging Face team and their libraries: transformers and TRL
  • The Pytorch and Torch AO team for their contributions
  • NVIDIA for their NeMo DataDesigner library and their contributions
  • And of course for every single person who has contributed or has used Unsloth!