Clio Duo is an AI assistant embedded directly in Clio, the practice-management platform widely used by solo practitioners and small law firms. Unlike standalone legal AI tools, Duo operates on the matters, contacts, billing records, and documents already inside a firm's Clio account — so it can answer questions, generate summaries, and suggest next steps in the context of real case history rather than generic legal knowledge. Because it ships as part of Clio rather than as a separate product, there is no new system to learn and no data to migrate. Firms already paying for Clio get AI features layered onto their existing workflow: reviewing a matter, drafting follow-up tasks, or summarizing billing activity without switching tabs. It is most useful for small teams where a dedicated legal AI subscription is hard to justify — Duo trades raw capability for frictionless adoption inside a tool attorneys already open every day.