Medium Launches TK AI Writing and Collaboration App
Medium launched TK, a web app with an AI assistant embedded in its editor. Users can request help by typing “@TK” followed by a question or prompt. Medium says TK offers editorial and headline feedback, can match drafts to Medium publication style guides, and can include notes explaining how AI was used, including prompts and source material. The app also supports a social layer for sharing early drafts and receiving feedback, optional connections to personal AI agents through an MCP server or Claude skill, and Markdown import and export. The Verge describes TK more broadly as a minimalist note-taking, journaling, and private social-networking app with daily prompts. It is available on the web, while a desktop app is on Medium’s roadmap.
TK combines AI writing assistance, notes intended to make AI use transparent, social feedback on drafts, and personal-agent integrations in one application. Medium presents these features as a response to concerns that AI assistance can blur the line between human and machine-written work.
Online publishing platform Medium on Monday launched a new app, called TK, which aims to bring AI technology deeper into the writing process. The idea behind TK is to make it easier to turn ideas into written words by incorporating an AI assistant into the editor itself, allowing users to ask for help by typing “@TK” followed by their request or prompt.
In publishing and journalism, the term “TK” serves as a placeholder used to mark where missing information can be added later. The “TK” stands for “to come,” but uses a “K” instead of “C” as there are few English words where the “tk” letter combination exists, making it stand out more easily in written text where it could be caught by proofreaders.
In Medium’s app, TK takes on a new role as it tries to help users fill in the blanks.
The company suggests the AI assistant could help answer questions that you might normally have to switch to another tab to quickly look up, like how many days are in a particular month. The app could also pull in bits of writing you had previously saved to the app when you were still fleshing out your ideas.