An open-source AI workspace for chats, documents, and projects.

OR3 brings models from OpenRouter into one workspace. Ask questions, work on a project, and turn ideas into documents without jumping between apps. Choose a clean layout, a retro look, or something more colorful.

Your browser saves your work locally. Use the browser-only app for personal work, or host OR3 Cloud to add accounts, shared workspaces, and sync across devices. OR3 is free software; model providers may charge for AI use.

Get started · Features · Your data · Customize · Contribute

What you can do

• Chat with different models. Connect OpenRouter, pick a model, and switch when you need a different approach. Responses appear as they arrive.
• Keep useful context together. Give a project a brief, add files and notes to its Knowledge library, and manage saved project memories.
• Write alongside your chats. Open documents in the rich text editor, save useful answers, and keep chats and documents side by side.
• Explore another direction. Branch a conversation or retry a response without…