Medium debuts TK to blend note-taking, collaboration, and generative drafting

Medium launched TK on Monday, introducing a free web application for Medium account holders that merges note-taking with AI drafting and collaborative sharing. Described by The Verge as a blend of Google Docs, group messaging, and blogging, the platform represents the company's first major product debut since 2017, according to Medium chief executive Tony Stubblebine. [1][2]

Borrowing its name from the journalism placeholder for missing information, TK lets writers summon AI help by typing "@TK" directly inside the editor to retrieve facts, pull past notes, or evaluate headlines. Authors can also link external AI agents through a Claude skill or TK's MCP server. For human feedback, the app includes a social layer for sharing drafts, along with custom access controls, Markdown import and export capabilities, and tools to publish provenance notes detailing AI usage. Content is not encrypted, and a desktop client remains in development. [1]

The release comes amid broader literary unease over generative writing, including revoked book deals and award controversies. Medium argues that artificial intelligence amplifies human intelligence rather than diminishing writing's value, positioning transparent sourcing notes as the blueprint for publishing in the AI era. [1]