unslothai/unsloth v0.1.43-beta

CUDA 13.3, Windows, Mac update

on GitHub

To update Unsloth or install a new Unsloth Studio, you must use:

macOS, Linux, WSL:

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

Windows:

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

Mac Updates

• Re-enabled llama.cpp prebuilt binaries for Apple Silicon (M1-M4) - Mac OS 14 / 15 / 26 (Tahoe)
• Apple Silicon Mac OS 13 (Ventura) is source build
• Intel (x86_64) for Mac OS 13.3 / 14 / 15 / 26 (Tahoe) uses llama.cpp prebuilt binaries
• Intel for Max 13.0 - 13.2 is source build

Windows Updates

• CUDA 13.3 llama.cpp prebuilt binaries now work for Windows
• For CUDA 13.2, CUDA 13.1 and below, Windows devices uses CUDA 12.4 fallback - we'll work on CUDA 13.1 binaries soon.

CUDA 13.3 Update

• CUDA 13.3 non Linux binaries work. We'll still use CUDA 13.1 for now
• CUDA 13.3 solves the CUDA 13.2 gibberish problem - see #4849

Blackwell GPUs Update

• For now Blackwell will have delayed releases of llama.cpp prebuilt binaries sine CUDA 12.4 does not work - we are working to resolve this soon.

What's Changed

• Bump install.sh / install.ps1 pin to unsloth>=2026.5.8 by @danielhanchen in #5791
• Studio: expose --parallel / -np flag on unsloth studio run by @danielhanchen in #5737
• tests: unblock three stale assertions broken on main (MLX CI + Backend CI) by @danielhanchen in #5803
• ci: install unsloth_zoo from git main in notebooks-ci + studio-backend-ci by @danielhanchen in #5802
• tool mask support by @Datta0 in #5682
• Studio: add frontend i18n support by @penumbrazz in #5765
• Studio: unblock install on Linux ARM64 + Windows ARM64 + Intel Mac by @danielhanchen in #5790
• Harden Linux llama.cpp prebuilt reuse by @mmathew23 in #5796
• Studio: expose image size setting in training UI by @Dariton4000 in #5743
• Studio: add configurable CPU thread pool limit by @alkinun in #5760
• Trim README Advanced launch options blurb by @danielhanchen in #5809
• [RL] make sync weights conditional by @Datta0 in #4925
• Studio: add Gemini provider with web_search, code_execution, prompt caching, and Nano Banana image generation by @danielhanchen in #5720
• Studio: add remote MCP server support by @NilayYadav in #5750
• Clear MRoPE after generation for GRPO by @Datta0 in #5683
• Detect CUDA UMD Version from newer nvidia-smi output (fixes #5812) by @danielhanchen in #5817
• Studio: remove dark mode upload circle by @Imagineer99 in #5813
• fix: honor --ctx-size and other forwarded args from unsloth studio run in Studio's context-fit logic by @mvanhorn in #5815
• Fix non-streaming GGUF chat completion usage by @alkinun in #5781
• Fix/studio colab proxy and iframe - Unsloth Studio not loading in Colab (iframe "refused to connect" and wrong URL) by @LeoBorcherding in #5844
• Studio: keep web search/code pills off on model load if user disabled them by @rolandtannous in #5851
• studio/setup.sh: cope with fresh CUDA toolkits like 13.3 by @danielhanchen in #5826
• fix/strix halo and windows AMD ROCm support by @LeoBorcherding in #5301
• Version downpairing for Radeon+ROCm PyTorch wheels by @jaeiclee in #5353
• feature/use lemonade-sdk llamacpp-rocm binaries by @LeoBorcherding in #5303
• studio: ROCm cleanups follow-up to #5301 by @danielhanchen in #5874
• fix: wrong code block language for nightly Windows install by @mervivian in #5877
• fix: bump openssl, rand, rustls-webpki, tar in Studio src-tauri for security advisories by @orbisai0security in #5866
• Fix error when context-resizing by @afsuyadi in #5860
• Update Studio sidebar logout icon to logout-05 by @shimmyshimmer in #5878
• studio: pick a macOS llama.cpp prebuilt that loads on the host OS by @danielhanchen in #5883
• studio: make NVIDIA prebuilt selection track CUDA version bumps (Windows + Linux) by @danielhanchen in #5879
• Remove dead top-level bitsandbytes import from models/_utils.py by @Rahul007007 in #5875
• ci(security-audit): make package installs network-resilient by @danielhanchen in #5853
• Studio: add stdio MCP server support by @oobabooga in #5863
• studio/frontend: fix MCP dialog overflow on long URLs by @oobabooga in #5864
• Studio: clearer error for diffusion GGUFs loaded as chat models by @danielhanchen in #5857
• Studio: harden stdio MCP gating and fix transport edge cases by @danielhanchen in #5892
• Studio: fix phantom scroll area below messages with many sources by @danielhanchen in #5822
• Studio: pin the last pre-macOS-26 llama.cpp prebuilt instead of walking back by @danielhanchen in #5896
• fix(install): detect x86_64 Python venv on Apple Silicon and rebuild as arm64 by @ramankrishna in #5187

New Contributors

• @penumbrazz made their first contribution in #5765
• @Dariton4000 made their first contribution in #5743
• @NilayYadav made their first contribution in #5750
• @mvanhorn made their first contribution in #5815
• @jaeiclee made their first contribution in #5353
• @mervivian made their first contribution in #5877
• @orbisai0security made their first contribution in #5866
• @afsuyadi made their first contribution in #5860
• @Rahul007007 made their first contribution in #5875
• @ramankrishna made their first contribution in #5187

Full Changelog: v0.1.42-beta...v0.1.43-beta