Medium launches TK app to bring AI assistant right into your writing

Medium's new app, named after the publishing placeholder 'TK', is designed to weave artificial intelligence directly into the writing process. By typing '@TK', users can prompt the AI to answer quick questions, dig up previously saved ideas, or offer editorial feedback that aligns with specific publication style guides. The app also connects with external AI agents through an MCP server or Claude skill to better understand the user's projects.

This launch wades straight into the ongoing debate over AI in literature. Many authors and publishers worry about AI blurring the lines of human creativity and authorship, especially given recent controversies over AI usage in book deals and literary awards. To tackle these concerns, Medium offers a transparency feature that lets writers publish notes detailing their exact AI usage and prompting history.

Beyond AI assistance, TK includes a social layer for sharing early drafts with others to get human feedback. Currently available on the web with a desktop version on the way, the free tool aims to help writers organize thoughts and collaborate seamlessly while navigating the shifting norms of the AI era.