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Michael Han 8c335b8da6
studio/install: fix mac desktop shortcut spawning and lifecycle (#5496)
* studio/install: fix mac desktop shortcut spawning and lifecycle

The macOS .app generated by install.sh ships a shell-shim wrapper that
is unsigned and has no NSAppleEventsUsageDescription in its Info.plist,
so AppleEvents from the bundle are denied by TCC. The launcher's
`osascript ... tell application "Terminal" to do script ...` call
silently fails and the script falls back to the headless nohup branch,
where the user sees no Terminal window at all. Each click of the Desktop
shortcut then leaks an unattached server (no PID file, no cleanup) and
the launcher times out after 60s without ever opening a browser.

Replace the AppleScript spawn with a `.command` file + `open -a Terminal`.
Terminal handles `.command` natively through Launch Services, no
AppleEvents permission required, works with unsigned bundles.

The new design also decouples the studio server from the Terminal:

- Server is started via nohup, detached from any TTY. Warm relaunches
  (server still alive) hit the existing fast path: the launcher's
  `_find_healthy_port` returns the running port and the browser opens
  in ~80ms with no Terminal involvement.
- The `.command` file is a log viewer (`tail -F` of studio.log), not
  the server's parent. It also runs a watcher subshell that polls the
  server PID and kills `tail` when the server exits. This means
  clicking "Stop server" in the UI causes the Terminal window to drop
  to no-running-processes state, so the user can close the window
  without the "Do you want to terminate running processes" dialog.
- A trap on HUP/INT/TERM/EXIT in the `.command` file sends SIGTERM
  (then SIGKILL at +0.5s) to the server PID, so closing the Terminal
  window also stops Studio. Best of both worlds: fast warm relaunch
  AND "close terminal == quit Studio".

Also:

- Drop POLL_INTERVAL_SEC from 1 to 0.25. With Python studio startup
  at ~2s, the 1s poll added up to 1s of slack between server-ready
  and browser-open. 0.25s tightens cold-launch latency at no
  meaningful CPU cost.
- Refuse to install the `.app` bundle through a symlink. If a prior
  install (e.g. a --tauri build) left $HOME/Applications/Unsloth\\ Studio.app
  as a symlink, mkdir -p follows it and writes the new bundle contents
  through to the target. Detect and rm the symlink before mkdir -p.

Test plan:
- Existing studio-mac-update-smoke.yml CI runs install.sh end-to-end
  on macos-14 and asserts /api/health returns healthy.
- Manual: click Desktop shortcut from cold state, Terminal opens with
  logs streaming, browser opens at ~2s. Re-click while Studio still
  running, browser opens in <200ms, no new Terminal. Click "Stop
  server" in the UI, Terminal closes cleanly with no prompt. Close
  Terminal via Cmd+W, server stops within 1s.

* studio/install: trim verbose comments in _spawn_terminal

* studio/install: harden trap quoting in generated .command

The trap bodies in the .command file were written with broken
quoting:

  trap "rm -f "$PID_FILE" 2>/dev/null" EXIT

Shell parses this as three concatenated tokens ("rm -f " + unquoted
$PID_FILE + " 2>/dev/null") then runs the trap. With paths that
contain spaces, the unquoted expansion word-splits and the rm
either no-ops or removes the wrong path. Default $HOME has no
spaces so the bug is latent, but it should be space-safe.

Switch both trap bodies to single-quoted form so $WATCHER_PID,
$TAIL_PID, and $PID_FILE expand at signal time inside properly
quoted positions. Shellcheck-clean on the generated .command.

* studio/install: exec studio in nohup wrapper so PID is the server

Without the explicit exec, `nohup sh -c "$_cmd"` runs `_cmd` as a
child of the wrapper shell. Whether sh exec-optimizes that single
command is shell-specific (macOS /bin/sh does, dash does, some bash
configurations do not). When the optimization does not fire, `$!`
records the wrapper PID rather than the studio PID, so:

- the watcher in the generated .command monitors the wrapper, not
  the actual studio process; closing the Terminal can leave studio
  running if the wrapper exits first
- SIGTERM from shutdown_studio goes to the wrapper rather than the
  server

Force the replacement with exec so the recorded PID is always the
studio process regardless of shell version.

Flagged by both gemini-code-assist and codex in PR review; verified
correct.

* Fix orphan-on-spawn-failure, graceful kill, and nested symlink for PR #5496

Three issues found while testing the new macOS spawn path:

1. _spawn_terminal returned 0 even when 'open -a Terminal' failed, so
   the nohup'd server was left orphaned with no Terminal owner. Wrap
   the .command write + chmod + open chain in 'if {...}; then return 0;
   fi', and on failure SIGTERM the orphan (with a 3s grace) before
   falling through to the generic terminal-spawn fallback.

2. The generated .command sent SIGKILL only 0.5s after SIGTERM, shorter
   than studio/backend/run.py's _graceful_shutdown windows (5s inference
   + 5s export). Wait up to 12s for the server to exit on its own.

3. The .app symlink guard only checked the top-level path. If a prior
   corrupted install left Unsloth Studio.app/Contents (or its MacOS or
   Resources children) as a symlink, mkdir -p still wrote through them.
   Check all four bundle paths, and refuse to continue if the bundle
   path exists as a regular file.

---------

Co-authored-by: Daniel Han <info@unsloth.ai>
2026-05-18 02:09:42 -07:00
.github studio: load cached GGUF models when fully offline (#5505) 2026-05-17 21:25:39 -07:00
images New buttons 2026-05-18 01:43:59 -07:00
scripts ci: deterministic check for studio/frontend dep removals (#5478) 2026-05-16 05:46:22 -07:00
studio studio: gate image input on effective vision capability (#5492) 2026-05-18 01:35:46 -07:00
tests Fix ORPO text-only tokenization with processors (#5501) 2026-05-18 00:40:30 -07:00
unsloth Fix ORPO text-only tokenization with processors (#5501) 2026-05-18 00:40:30 -07:00
unsloth_cli Add a simple --version flag (#5516) 2026-05-18 04:04:05 +04:00
.gitattributes EOL LF (unix line endings) normalization (#3478) 2025-10-17 16:22:42 -07:00
.gitignore CI: scope GITHUB_TOKEN permissions, add MLX CI, unblock ~60 skipped tests (#5312) 2026-05-11 03:19:13 -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 (#5204) 2026-04-27 14:17:03 -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 install: support STUDIO_HOME / UNSLOTH_STUDIO_HOME for custom install paths (#5190) 2026-05-05 23:17:40 -07:00
install.sh studio/install: fix mac desktop shortcut spawning and lifecycle (#5496) 2026-05-18 02:09:42 -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 intel-gpu: pin unsloth_zoo>=2026.5.2 via huggingfacenotorch (#5499) 2026-05-17 01:40:20 -07:00
README.md Add API Inference endpoint 2026-05-05 06:13:35 -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: 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 -p 8888

For cloud VMs or LAN access, add -H 0.0.0.0 to bind on all interfaces.

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

  • 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

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!