Minimal core. Room for your workflow.
Pi starts with a lean system prompt and essential tools, leaving workflows to extensions. FastVibe adds planning, subagents and permission controls for a ready-to-use desktop experience.
FastVibe · Open-source desktop workspace
A workspace for your agents
Powered by pi-coding-agent, with support for the Pi plugin ecosystem and a full desktop GUI for agent work.
Chat, tool calls, approvals and file review in one place. Open source from interface to engine, with tools and workflows you can extend.
FastVibe for desktopmacOS, Windows & Linux
BUILT ON PI
Your workflow comes first.Your tools should follow.
Pi provides a minimal, extensible agent core.FastVibe brings that freedom to your desktop.
Explore the ideas behind PiChange models, not your workspace.
Build on Pi’s multi-model foundation. Switch configured models within the same conversation, choosing a provider and reasoning level for the task instead of tying your workflow to one model.
Extend beyond the defaults.
Add tools and workflows through skills and TypeScript extensions. FastVibe integrates Pi’s extension system and adds an MCP bridge, bringing your existing tools into the workspace.
Open beyond the interface
FastVibe embeds the pi-coding-agent SDK directly. Follow the source from desktop interactions and session management to the agent loop and model adapters.
- FastVibeDesktop interface & integrations
- pi-coding-agentSessions, tools & extensions
- pi-agent-coreAgent loop & events
- pi-aiModel APIs & streaming
The application and agent-core layers above are MIT-licensed. Models and third-party services have their own terms.
DESIGNED FOR REAL WORK
One workspace.Every step in view.
Work with the full context
Keep your conversation beside the files you're working on. Let your agent explore the project, make a plan and carry it through — while code previews and progress stay within reach.
See what changed, and why
Tool calls and file changes are part of the conversation, not a separate trail to track down. Open a diff, review each edit and work with Git without leaving your task.
Make the workspace your own
Use the models you trust and the tools you already know. Configure providers, connect MCP servers and install skills and extensions. Your workflow doesn't have to fit a single provider.
GET STARTED
A new workspace on your desktop
Choose your platform, connect a model and start working.
macOS
Apple Silicon and Intel builds
Windows
64-bit installer
Linux
AppImage and Debian packages
Free and open source. Your model provider may charge for usage.
macOS builds are currently unsigned. Installation guide ↗
Build your way of working
FastVibe is open source under the MIT license. Explore the code, share an idea or help shape what comes next. A good workspace gets better with the people who use it.