o11 is an AI automation platform that embeds agents directly inside enterprise productivity tools. It enables users to automate workflows within Microsoft Office apps (PowerPoint, Excel, Word) and Google Workspace (Slides, Sheets, Docs), from crafting templated presentations to building full financial models. The company describes its product as the AI agent inside every enterprise app and says it serves hundreds of companies globally. o11 is a Y Combinator Winter 2026 company based in the San Francisco Bay Area.