AionUi is a free, open-source AI cowork platform that lets agents work alongside users on their computers rather than limiting interaction to chat. Its built-in agent can read and create files, write code, browse information, automate multi-step tasks, and produce artifacts such as presentations, documents, and spreadsheets while keeping the user involved in the workflow.

The application supports multiple model providers and can also detect and work with existing command-line agents such as Claude Code, Codex, Gemini CLI, OpenCode, OpenClaw, Hermes, and many others. It is cross-platform and includes capabilities for remote access, multi-agent workflows, long-running automation, and reusable agent skills, giving users a common interface for several different agent runtimes.

AionUi is aimed at people who want a desktop-style agent workspace with more operational freedom than a conventional AI chat client. It can be used for coding, document production, research, automation, and other computer-based tasks, while its open-source design makes it attractive to users who want to inspect, customize, or self-host their AI working environment.