Onyx is an open-source AI platform for teams, offering a conversational interface to large language models integrated with an organisation's internal knowledge and applications. Founded by Chris Weaver and Yuhong Sun, Onyx provides enterprise search, AI chat, customisable AI agents, web search, code execution, and workflow automation actions. It connects to 40+ tools (Slack, Google Drive, GitHub, Gmail, and more) via continuously indexed, permission-aware connectors, and can be self-hosted on any infrastructure or used via Onyx Cloud.