Biscuit

Biscuit is a lightweight, open source native code editor with built in AI agents. The whole editor is under 20 MB, installs from PyPI in seconds and opens a project folder from the command line, positioning it as a fast alternative to heavier IDEs for developers who still want language tooling and an AI assistant. It is aimed at developers who prefer a small, extensible desktop editor. Language server support provides code intelligence, and the editor also includes fast ripgrep based search, Git integration and an extension API. The AI side connects to Anthropic Claude and Google Gemini models through the user's own API keys. A planning agent keeps a dynamic task list and can use eleven tools, including reading, editing and deleting files, listing directories, glob and grep searches, codebase search, running terminal commands and inspecting the active editor. Files can be attached to chat for context, and prompts can be issued inside Biscuit's terminal, with suggested commands accepted or declined before they run. Further model providers can be added through extensions. Biscuit is free and fully open source, with no paid plan published; model usage is billed by the chosen AI provider. Compiled executable releases are available alongside the pip package. The project is maintained in the open and its documentation is still a work in progress. The earlier Ollama extension for running local models is marked as deprecated and awaiting a rewrite.