Unsloth is a local UI for training and running Gemma 4, Qwen3.6, DeepSeek, Kimi, GLM and other models. https://unsloth.ai/docs
  • Python 71.5%
  • TypeScript 22.7%
  • Shell 1.9%
  • PowerShell 1.6%
  • Rust 1.5%
  • Other 0.7%
Find a file
Daniel Han c22f6e48ff Apply round-2 audit fixes: per-model OpenAI caps + o-series effort + Ollama bucket (PR #5711)
Second 5-Opus reviewer round. Applying high-confidence fixes; speculative
items (gpt-5.5-pro effort restriction, o3 image_generation gating,
o-series parallel_tool_calls per-model, gpt-5.x new model prefixes,
Anthropic fast-mode + Priority exclusion UI gate, Gemini service_tier,
Kimi k2.5 toggleable thinking) deferred to follow-up because they need
type-system changes, more verification, or backend wire work.

OpenAI max-output caps — replace the 3-line table with one driven by
direct dev.openai.com per-model fetches (cross-checked against the Azure
Foundry reasoning table):

  - gpt-5.4 / gpt-5.4-pro / gpt-5.4-mini / gpt-5.4-nano: 65536 -> 128000
    (https://developers.openai.com/api/docs/models/gpt-5.4 "128,000 max
    output tokens"; Azure table same).
  - gpt-5.3-codex: 16384 -> 128000
    (https://developers.openai.com/api/docs/models/gpt-5.3-codex).
  - gpt-5 / gpt-5.1 / gpt-5.2: 32k default -> 128000
    (https://developers.openai.com/api/docs/models/gpt-5.2 confirms
    128k; Azure table extends to gpt-5/5.1).
  - gpt-5.3-chat-latest and gpt-5.1-chat keep 16384 (chat-class
    variants per Azure context table row).
  - o1 / o3 / o3-mini / o3-pro / o4-mini / codex-mini: 32k default ->
    100000 (https://developers.openai.com/api/docs/models/o3 "100,000
    max output tokens"; Azure o-series table same).

Implementation: list the two 16k chat-latest ids first so the broader
`gpt-5` 128k entry doesn't shadow them.

OpenAI reasoning_effort levels:

  - gpt-5.3-codex: drop "none" from levels + flip supportsOff to false.
    Dev page lists the enum as low/medium/high/xhigh only — `none` is
    not in the codex variant.
  - o-series bucket: change prefix from ["o3"] to
    ["o1","o3","o4","codex-mini"]. Previously o1 / o4-mini / codex-mini
    fell into NO_REASONING_CAPS so the panel HID the effort slider for
    them — real UX regression for users on those ids. Azure o-series
    table confirms all four accept low/medium/high reasoning_effort.

DeepSeek default_models:

  - Add deepseek-v4-pro + deepseek-v4-flash alongside the legacy
    deepseek-chat / deepseek-reasoner aliases. The latter retire on
    2026-07-24 per https://api-docs.deepseek.com/updates; surfacing
    both lets the picker keep working on cutover.

Local backend bucket split (Ollama-stricter):

  - Splits the round-1 VLLM_OLLAMA_CAPABILITIES into a vLLM-specific
    bucket (keeps top_k / min_p / repetition_penalty / seed on; vLLM's
    SamplingParams supports all four) and an Ollama-specific bucket
    that ALSO hides top_k / min_p / repetition_penalty. Ollama's OAI
    translator (ollama/openai/openai.go FromChatRequest) only copies
    the documented OpenAI subset on the /v1/chat/completions path that
    Studio uses; the three knobs are silently dropped even though
    native /api/chat would forward them via `options`. Hiding them is
    the smaller fix vs adding a backend /api/chat rewrite path.

Reviewer claims verified wrong, skipped:

  - _ANTHROPIC_NEW_CODE_EXEC_PREFIXES already lists opus-4-7, opus-4-6,
    sonnet-4-6 (external_provider.py:337-339). No-op.
  - Mistral `seed` already renamed to `random_seed` by backend at
    external_provider.py:772. No-op.
  - OpenRouter `isOpenRouterMandatoryReasoningModel` uses `Set.has()`
    exact match, not prefix match, so deepseek/deepseek-r1-distill-*
    cannot accidentally hit the always-on guard. No-op.

Tests: 63/63 sampling_params_routing tests pass; frontend tsc clean.
2026-05-27 06:49:15 +00:00
.github ci: unblock Studio Windows + Linux + Mac smoke (#5741) 2026-05-23 06:59:16 -07:00
images images: use narrower Discord button and drop duplicate (#5552) 2026-05-18 05:00:59 -07:00
scripts Move uninstall scripts into scripts/ and fix references (#5644) 2026-05-20 04:42:03 -07:00
studio Apply round-2 audit fixes: per-model OpenAI caps + o-series effort + Ollama bucket (PR #5711) 2026-05-27 06:49:15 +00:00
tests fix(chat_templates): check find() return value before slicing on placeholders (#5763) 2026-05-25 06:19:01 -07:00
unsloth Update _utils.py 2026-05-26 07:25:14 -07:00
unsloth_cli Studio: auto-recover when shadowed 'unsloth' on PATH hides the frontend dist (#5782) 2026-05-26 05:29:42 -07:00
.gitattributes EOL LF (unix line endings) normalization (#3478) 2025-10-17 16:22:42 -07:00
.gitignore ci: advisory lockfile supply-chain audit (no install-script changes) (#5604) 2026-05-19 05:56:56 -07:00
.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 (#5773) 2026-05-25 22:21:43 -07:00
build.sh Add Studio web update banner and release version display (#5308) 2026-05-11 18:24:01 +04:00
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 Studio: auto-recover when shadowed 'unsloth' on PATH hides the frontend dist (#5782) 2026-05-26 05:29:42 -07:00
install.sh Fix unsloth studio update silently downgrading on macOS arm64 (#5767) 2026-05-26 07:23:13 -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 API fixes + pypi 2026-05-22 09:16:53 -07:00
README.md Adding Connect a Provider README changes 2026-05-21 05:08:59 -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

Unsloth Studio lets you run and train models locally.

FeaturesQuickstartNotebooksDocumentation


unsloth studio ui homepage

Get started

macOS, Linux, WSL:

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

Windows:

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

Community:

Features

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

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.

📥 Install

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: Training, MLX and GGUF inference are ALL supported.
  • AMD: Chat + Data works. Train with Unsloth Core. Studio support is out soon.
  • 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 -p 8888

For cloud or global access, add -H 0.0.0.0. By default, Unsloth is accessible only locally.

Update

To update, use the same install commands above or use 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

  • Connections: Connect any API provider (OpenAI, Anthropic) or server (vLLM, Ollama). Guide
  • MTP: Run Qwen3.6 MTP in Unsloth. MTP settings are autoset specific to your hardware. Guide
  • API inference endpoint: Deploy and run local LLMs in Claude Code, Codex tools. Guide
  • Qwen3.6: Qwen3.6-35B-A3B can now be trained and run in Unsloth Studio. Blog
  • Gemma 4: Run and train Googles new models directly in Unsloth. 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

📥 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 -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 -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 -p 8888

Then to launch every time:

unsloth studio -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 -p 8888

Then to launch every time:

unsloth studio -p 8888

Uninstall

The recommended way to fully remove Unsloth Studio is the matching uninstall script for your OS. It stops any running servers, removes the install dir, the launcher data dir, the desktop shortcut, and any platform-specific entries (macOS .app bundle + Launch Services on Mac; Start Menu, HKCU\Software\Unsloth registry key and user PATH entries on Windows):

  • MacOS, WSL, Linux: curl -fsSL https://raw.githubusercontent.com/unslothai/unsloth/main/scripts/uninstall.sh | sh
  • Windows (PowerShell): irm https://raw.githubusercontent.com/unslothai/unsloth/main/scripts/uninstall.ps1 | iex

If you only want to drop the install dir and keep the launcher/shortcut for a later reinstall, you can instead run rm -rf ~/.unsloth/studio (Mac/Linux/WSL) or Remove-Item -Recurse -Force "$HOME\.unsloth\studio" (Windows). The model cache at ~/.cache/huggingface is not touched by any of these.

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!