Install and requirements
Noi is a free desktop AI Chat Hub for Windows (x64), macOS (Apple Silicon, Intel), and Linux. On Windows, installation is available through a 64-bit MSI installer, with a Setup.exe also listed. After setup, open each AI service inside Noi and sign in as you would in a browser. You can remove services you do not use from the default space to keep the workspace focused.
For people who work across several chat services, Noi provides a single desktop environment rather than a separate application for each site. It is freeware developed by lencx, but it does not supply AI models or replace the accounts required by the services it opens.
What happens after setup
The default space brings together AI websites including ChatGPT, Claude, Gemini, Grok, GitHub Copilot, Perplexity, DeepSeek, Qwen, and Kimi. It also includes developer-oriented sites such as GitHub and Hugging Face. Each website opens in its own isolated session, so accounts and activity can remain separate between services or workspaces. Multiple windows can be arranged side by side when comparing responses or working on different tasks.
Isolation is useful when switching between personal and work accounts, or when a task benefits from keeping one service’s conversation apart from another’s. Noi acts as the container for these sites; chats are still handled by the website in use and remain subject to that service’s terms and limits. Each service may require its own account, and access to paid features depends on that service’s plan.
Prompts, history, and local work
A prompt library lets you organise instructions and reuse them across AI chats. This can help keep recurring requests consistent without having to rewrite them each time. Noi also stores history, prompts, and settings on your PC. That local storage concerns the app’s own data; it does not mean that conversations are processed locally or kept outside the service receiving them.
The built-in terminal runs local commands and scripts without requiring you to leave the app. This makes it possible to keep command-line work near the AI sessions used to discuss or support it. Version 1.1 added the noi command-line tool, through which coding agents such as Claude Code, Codex, and Gemini CLI can control Noi.
Scope and practical considerations
Noi is best understood as a browser-style hub for AI chat websites, not as an AI system. It does not run models offline or locally, and every chat is sent to the selected service. Users should therefore consider the account, privacy, and usage rules of each site they open, rather than treating Noi as a substitute for those services.
The app is closed source. Its GitHub repository contains releases, configuration files, and extensions, but not the application’s source code. Documentation is limited, so some setup and workflow details may require exploration within the app. For regular users of several AI chat sites, the central benefit is having their sessions, prompts, and related local tools in one place while retaining the separate behavior of each service.