v0.1.42-beta

Hey guys, we're doing one more-ish update before a major revamp which is likely coming this week or next week. Our revamp will change a lot of things, especially with new major features and a lot of design changes.<br>
* NEW: **[API calling support](https://unsloth.ai/docs/integrations/connections)** now with image generation + editing, proper web search, code execution, auto prompt caching. Connect [OpenAI](https://unsloth.ai/docs/integrations/connections/openai), [Anthropic](https://unsloth.ai/docs/integrations/connections/anthropic-claude) and more.
* `unsloth studio update` should now work properly. For Mac users, use the install curl command instead: `curl -fsSL https://unsloth.ai/install.sh | sh`
* Proper support for **non-English languages** e.g. Japanese, Chinese, Indian etc.

https://github.com/user-attachments/assets/70456395-e016-4273-8256-35adb206267e

Many of you may have missed our previous release which only lasted for one day. We introduced:
* Connect to external inference backends: [vLLM](https://unsloth.ai/docs/integrations/connections/vllm), [Ollama](https://unsloth.ai/docs/integrations/connections/ollama), [llama-server](https://unsloth.ai/docs/integrations/connections/connect-llama.cpp-to-unsloth-run-ggufs-with-llama-server)
* **Security improvements**
- **Auto MTP speculative decoding** for MTP GGUFs; get the best settings customized for your hardware.

## API provider calling & external connections
- You can now connect Unsloth to any API cloud provider (OpenAI, Anthropic, OpenRouter etc.)
- **Built-in web search** for OpenAI, Anthropic, OpenRouter and Kimi
- **Built-in code execution** for OpenAI and Anthropic (Anthropic containers persist and are reused across turns)
- Prompt caching is enabled for OpenAI and Anthropic models saving 50 to 90% of costs.
- Image generation + editing
- API key now optional for local providers (llama.cpp / vLLM / Ollama)
- Auto-load models when adding a cloud provider

## Other Unsloth Studio updates
- OpenDocument chat attachments
- o3 reasoning summary payload
- Sending/prompting non-English languages (e.g. Japanese, Chinese) now works properly
- IME composer hardening, RTL `dir="auto"`, long log-line truncation fix
- Tool reasoning trace rendering in UI
- Fully offline support: cached GGUF discovery and offline DNS auto-detect for both inference and training

## Unsloth Studio security improvements
- Authentication rate-limiting, proxy-aware so reverse proxies don't bypass it
- Sandboxed worker with a tightened blocklist (bash, `hf upload`, `NOFILE`)
- Path containment so workers can't escape their in-flight tmp dirs
- Strict schema validation across the Studio API
- Tightened CSP / security headers (only legitimate favicon hosts allowed)
- Removed the `torch.load` fallback on `training_args.bin` so untrusted pickles can never execute on model load
- Hardened Tauri desktop release flow
- Frontend auth: singleflight token refresh, current-password input on changes, working logout, shared 422 helper
- Cancel cleanup now scoped strictly to in-flight tmp dirs so it can never delete user state

## What's Changed
* install: bump unsloth floor to >=2026.5.5 by @danielhanchen in https://github.com/unslothai/unsloth/pull/5621
* Studio: persist chat toggles and preserve custom sampling by @Imagineer99 in https://github.com/unslothai/unsloth/pull/5587
* Studio: add connections toggle and order hosted providers by @Imagineer99 in https://github.com/unslothai/unsloth/pull/5588
* studio/ci: harden three pre-existing CI flakes by @danielhanchen in https://github.com/unslothai/unsloth/pull/5627
* Studio: expand Connections model picker for local inference server by @Imagineer99 in https://github.com/unslothai/unsloth/pull/5643
* Move uninstall scripts into scripts/ and fix references by @danielhanchen in https://github.com/unslothai/unsloth/pull/5644
* Studio: provider model loading controls by @Imagineer99 in https://github.com/unslothai/unsloth/pull/5645
* Studio: unify connection copy by @Imagineer99 in https://github.com/unslothai/unsloth/pull/5654
* Remove dead chat suggestions wiring by @alkinun in https://github.com/unslothai/unsloth/pull/5665
* Studio: Claude Code Anthropic API tool compatibility by @Imagineer99 in https://github.com/unslothai/unsloth/pull/5390
* studio/frontend: friendlier 404 fallback for unknown routes by @danielhanchen in https://github.com/unslothai/unsloth/pull/5664
* chore(deps): bump the npm-oxc-validator group across 1 directory with 2 updates by @dependabot[bot] in https://github.com/unslothai/unsloth/pull/5667
* studio/chat: Disable send button for empty composer by @harryfrzz in https://github.com/unslothai/unsloth/pull/5647
* studio/frontend: correct Think pill aria-label before model loads by @danielhanchen in https://github.com/unslothai/unsloth/pull/5655
* studio/frontend: fix onboarding CSP violations by @danielhanchen in https://github.com/unslothai/unsloth/pull/5658
* studio/frontend: set per-route document.title by @danielhanchen in https://github.com/unslothai/unsloth/pull/5660
* Fix Windows Tauri build and signing by @wasimysaid in https://github.com/unslothai/unsloth/pull/5694
* Respect GC for GRPO by @Datta0 in https://github.com/unslothai/unsloth/pull/5269
* studio: unblock /load event loop on detect_audio_type (#5642, #5635) by @danielhanchen in https://github.com/unslothai/unsloth/pull/5669
* studio: settle GPU VRAM after killing llama-server before the next reload by @danielhanchen in https://github.com/unslothai/unsloth/pull/5693
* Studio: surface prompt-cache token counts in /v1/chat/completions usage chunk by @danielhanchen in https://github.com/unslothai/unsloth/pull/5670
* Studio: per-model Anthropic server-side tool versions by @danielhanchen in https://github.com/unslothai/unsloth/pull/5679
* Studio: support Anthropic 1h cache TTL via prompt_cache_ttl by @danielhanchen in https://github.com/unslothai/unsloth/pull/5685
* Studio: wire OpenAI image_generation tool by @danielhanchen in https://github.com/unslothai/unsloth/pull/5688
* Studio: per-session cost calculator + /api/providers/pricing endpoint by @danielhanchen in https://github.com/unslothai/unsloth/pull/5690
* Studio: wire Anthropic web_fetch server-side tool by @danielhanchen in https://github.com/unslothai/unsloth/pull/5671
* Studio: persist chat history in backend storage by @Imagineer99 in https://github.com/unslothai/unsloth/pull/5272
* Studio: wire Anthropic server-side context compaction by @danielhanchen in https://github.com/unslothai/unsloth/pull/5686
* Studio: wire OpenAI Responses server-side context compaction by @danielhanchen in https://github.com/unslothai/unsloth/pull/5687
* Studio: PDF / document attachments for Anthropic + OpenAI by @danielhanchen in https://github.com/unslothai/unsloth/pull/5689
* Studio: reconcile external providers across browsers after delete by @danielhanchen in https://github.com/unslothai/unsloth/pull/5698
* Studio: persist external provider selection across page refresh by @danielhanchen in https://github.com/unslothai/unsloth/pull/5697
* Studio: add Anthropic and OpenAI prompt guards for disabled tools by @Imagineer99 in https://github.com/unslothai/unsloth/pull/5674
* Studio: persist external checkpoint when picker uses setParams by @danielhanchen in https://github.com/unslothai/unsloth/pull/5700
* Studio: surface OpenAI image_generation as composer Images pill by @danielhanchen in https://github.com/unslothai/unsloth/pull/5699
* Studio: expose Anthropic 5m vs 1h prompt cache TTL in Configuration by @danielhanchen in https://github.com/unslothai/unsloth/pull/5703
* Fix connected chat model selection after refresh by @wasimysaid in https://github.com/unslothai/unsloth/pull/5702
* Studio: render OpenAI image_generation results inline in chat by @danielhanchen in https://github.com/unslothai/unsloth/pull/5705
* Truncate long code execution tool output by @wasimysaid in https://github.com/unslothai/unsloth/pull/5708
* fix(gpt-oss): prefer flex attention over sdpa by @Datta0 in https://github.com/unslothai/unsloth/pull/5701
* Bump install.sh / install.ps1 pin to unsloth>=2026.5.6 by @danielhanchen in https://github.com/unslothai/unsloth/pull/5716
* ci: unblock Studio Windows + Linux + Mac smoke (supersedes #5733, #5734, #5738) by @danielhanchen in https://github.com/unslothai/unsloth/pull/5741
* ci: broaden Linux + narrow Windows llama.cpp runtime patterns + trim #5741 comments by @danielhanchen in https://github.com/unslothai/unsloth/pull/5746
* Lower default RL weight_decay from 0.01 to 0.001 for LoRA by @danielhanchen in https://github.com/unslothai/unsloth/pull/5747
* Studio: strip orphan tool_call XML leaking into visible content by @danielhanchen in https://github.com/unslothai/unsloth/pull/5735
* Bump install.sh / install.ps1 pin to unsloth>=2026.5.7 by @danielhanchen in https://github.com/unslothai/unsloth/pull/5753
* Fix MLX Studio base model export save method by @Lyxot in https://github.com/unslothai/unsloth/pull/5727
* fix(chat_templates): check find() return value before slicing on placeholders by @Ricardo-M-L in https://github.com/unslothai/unsloth/pull/5763
* [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in https://github.com/unslothai/unsloth/pull/5773
* Studio: stop seeded admin to cross-origin callers by @danielhanchen in https://github.com/unslothai/unsloth/pull/5739
* Studio: surface external-provider cache hits and writes in context bar by @danielhanchen in https://github.com/unslothai/unsloth/pull/5736
* Studio: Anthropic fast_mode toggle and streaming refusal handling by @danielhanchen in https://github.com/unslothai/unsloth/pull/5715
* Studio: rewrite OpenAI Responses citation markers to markdown links by @danielhanchen in https://github.com/unslothai/unsloth/pull/5713
* Studio: standalone Fetch pill for Anthropic web_fetch by @danielhanchen in https://github.com/unslothai/unsloth/pull/5742
* Studio: surface Anthropic document citations inline + in Sources panel by @danielhanchen in https://github.com/unslothai/unsloth/pull/5718
* Studio: pricing follow-up to #5690 (longest-prefix match + chat-style usage keys) by @danielhanchen in https://github.com/unslothai/unsloth/pull/5722
* Support follow-up edits for generated images by @wasimysaid in https://github.com/unslothai/unsloth/pull/5712
* Recipe Studio local model selector by @wasimysaid in https://github.com/unslothai/unsloth/pull/5769
* Improve image generation UI by @wasimysaid in https://github.com/unslothai/unsloth/pull/5784
* Studio: per-card web_search result + shell_call output fallback (OpenAI) by @danielhanchen in https://github.com/unslothai/unsloth/pull/5785
* Keep generated image loading dots animated by @wasimysaid in https://github.com/unslothai/unsloth/pull/5786
* Studio: auto-recover when shadowed 'unsloth' on PATH hides the frontend dist by @danielhanchen in https://github.com/unslothai/unsloth/pull/5782
* studio/frontend: show "1 second" instead of "1 seconds" in thinking blocks by @oobabooga in https://github.com/unslothai/unsloth/pull/5777
* Studio: stop the model from replying twice when it refuses by @oobabooga in https://github.com/unslothai/unsloth/pull/5775
* studio/frontend: add space above the scroll-to-bottom arrow in chat by @oobabooga in https://github.com/unslothai/unsloth/pull/5776
* Fix unsloth studio update silently downgrading on macOS arm64 by @danielhanchen in https://github.com/unslothai/unsloth/pull/5767

## New Contributors
* @harryfrzz made their first contribution in https://github.com/unslothai/unsloth/pull/5647
* @Lyxot made their first contribution in https://github.com/unslothai/unsloth/pull/5727
* @oobabooga made their first contribution in https://github.com/unslothai/unsloth/pull/5777

**Full Changelog**: https://github.com/unslothai/unsloth/compare/v0.1.41-beta...0.1.417-beta