local-studio

Local Studio 3.0.2

This release fixes how Local Studio starts its controller and where it keeps your data.

Download: localstudio.ai/download or the assets below.

Fixes

• The app owns its controller. On launch, Local Studio checks the controller on its port. An older Local Studio controller is stopped and replaced with the current one, so new features never hit a stale controller (for example, a "NOT_FOUND /api/registry" error in Settings → Local). Packaged apps run the bundled controller; source builds run it with Bun. It stops when the app quits. Anything on the port that isn't a Local Studio controller is never touched.
• Separate data folder. Local Studio now keeps its data in ~/.local-studio, no longer in ~/.t3, which upstream T3 Code also uses. Before this, installing both apps meant they shared one database and one set of sign-ins. On first launch, 3.0.2 copies your existing ~/.t3/userdata into the new folder once, so your threads come along. The original is left untouched.

Upgrading

• From 3.0.0 or 3.0.1: the app updates itself, then copies your data on first launch.
• From 2.x: install from the link above.

Test reports: #473

Full changelog: https://github.com/sybil-solutions/local-studio/compare/v3.0.1...v3.0.2

Local Studio 3.0.1

A follow-up to 3.0.0. It fixes branding and brings the local-ai-registry features ported from community PRs.

Download: localstudio.ai/download · macOS Apple silicon · macOS Intel · Windows · Linux x64 · Linux arm64

Local Studio's own icon and name

3.0.0 shipped with upstream T3 Code's app icon and still said "T3 Code" in several places. 3.0.1 uses the Local Studio cube everywhere:

• App icons on macOS, Windows and Linux, plus the web favicons and touch icon. The cube was redrawn as a vector from the 2.x icon.
• Development builds (Local Studio Dev) use the same cube in blue.
• Names in the app: the welcome wizard, the label on assistant messages, the timeline icon for app tools, the name a browser or phone sees, device names under Settings → Connections, the startup error and shutdown dialogs, and the macOS permission helper.

Local Studio is still built on T3 Code, with full credit in the README and the 3.0.0 notes. It just no longer wears T3's logo.

local-ai-registry in Settings → Local

These features are ported from community PRs #449 by @gildrb and #465 by @BlivionIaG, via #477. Thank you both.

• Recommendations: your GPUs, or your Apple chip and its unified memory, are matched against local-ai-registry hardware records, so you see what has been validated on a machine like yours.
• Model browser: turn on "All hardware" to browse every registry model, grouped by model, with the best variant first and every variant one click away.
• Per variant:
  • Inspect shows the full registry records.
  • Use config copies the launch command.
  • Download weights fetches the pinned revision onto that machine.
• Share: give a working setup back to the registry. Share turns a running server into registry records.
  • It removes credentials, home paths, hostnames and private IPs, then checks the records against the registry's own schemas.
  • Nothing is sent until you confirm. The pull request to local-ai-registry opens with your own gh login.

Other changes

• Controller docs again explain read-only captured recipes, cancellation limits and how auto ranks models (#475).
• The README download table points straight at the release files (#474).
• localstudio.ai now runs on Cloudflare and has a download page for every platform.

Upgrading

• From 3.0.0: the app updates itself.
• From 2.x: install 3.0.1 from the links above. See the 3.0.0 notes for what changed.

Please keep test reports coming in #473.

Full changelog: https://github.com/sybil-solutions/local-studio/compare/v3.0.0...v3.0.1

Local Studio 3.0

Local Studio 3.0 is a new app. The custom interface we built through 2.x is replaced by T3 Code, the open-source agent harness from Theo Browne, Julius Marminge and the T3 Tools team. On top of it, Local Studio adds what it has always been about: your own models, on your own machines.

Credit where it's due. Almost everything you see — the thread UI, the composer, the terminal, source control, remote access, the mobile app — is T3 Code's work, used under the MIT License. Local Studio is a deliberately thin fork that tracks upstream closely. If you like it, star pingdotgg/t3code.

Download: localstudio.ai/download · macOS Apple silicon · macOS Intel · Windows · Linux x64 · Linux arm64. All files, including the .deb packages and controller binaries, are listed under Assets below.

Watch the one-minute tour: Local-Studio-3.0-launch.mp4 (vertical)

Why we rebuilt on T3 Code

2.x grew a lot of UI over a year: chat panes, agent dashboards, a custom session model, a Next.js frontend, an Electron shell, and a controller with dozens of modules. It worked, but every feature cost us twice: once to build and again to keep fast and correct. Long agent sessions were where it hurt most. Ordering of reasoning and tool calls, reconnects, streaming and long-thread performance each needed their own fixes, again and again.

T3 Code had already solved the hard parts of an agent UI, and solved them well:

• Fast in long threads. On a 209-message, 282k-token session, the thread opens with about 90 ms of main-thread work. A follow-up turn shows your message in about 20 ms and streams without dropped frames.
• Every major agent. Codex, Claude Code, Cursor, Grok, OpenCode and Antigravity work out of the box.
• Remote-ready. One server drives desktop, web and phone, with pairing, Tailscale and a published mobile app.
• Maintained in the open by people who use it every day.

So we stopped competing with that and contributed the part we're good at. Local Studio 3.0 is T3 Code plus local AI, kept under a strict 4,000-line budget of our own code, so that upstream improvements reach you quickly.

What's new

Pi and Oh My Pi as first-class providers

Pi and Oh My Pi now sit in the model picker next to Codex and Claude, and run on whatever models you've configured for them, local or remote.

• Streaming text and reasoning, with tool calls (shell, edits, MCP) shown as they happen
• Interrupt, steering, and native compaction
• Conversation rollback for both Pi and Oh My Pi
• Effective model and thinking level, read back from the CLI, so the UI always shows what is actually running
• Token usage and context-window tracking from each session's own stats
• Import existing Pi and Oh My Pi sessions during onboarding, so your history comes with you
• No approval prompts interrupting long autonomous runs
• Oh My Pi's large model catalogs (hundreds of models) now load reliably, using its chunked RPC protocol

A local controller, bundled

The desktop app ships with the Local Studio controller and starts it for you.

• It discovers every OpenAI-c

2.16.0 (2026-09-02)

Features

• agent: transcript subagents, live status panel, repo slimming, and readable automation (#442) (c0d224b)
• app: cursor-wave 4 — sidebar redesign, composer dedupe, title generation, controller guards (#461) (9bf7b34), closes #141414 #181818 #599CE7 #F0F0F013
• app: owner-reported fixes, subagent panel redesign, composer density, and build hardening (#438) (cacf503)
• controller: context soft-limit guard and scaled local compaction (#460) (0b916f5)

Fixes

• agent-runtime: wait for the goal driver to settle instead of sleeping (#441) (bbc2039)
• agent: require strict goal outcome sentinels (#439) (6a6ece0)
• controller: make custom Docker launches reliable (#458) (4e48cc7)
• controller: strip accelerator prefix from CUDA selectors (#459) (0f9ad44)
• providers: salvage the still-relevant pieces of #435 (#440) (ba9fe13)

Refactors

• registry-backed recipes, docker-only engine roster, unified passthrough proxy (#443) (6ff4ef9)