Medium’s new TK app brings AI assistance directly into the writing process

Medium launched a new app called TK that embeds an AI assistant into the editor, letting users type “@TK” with a request to get help filling in blanks, looking up quick facts, pulling in previously saved writing, and receiving editorial, headline, and style-guide feedback. TK also offers writing prompts, organization of past work, optional connection to a user's own AI agent via an MCP server or Claude skill, and a social layer for sharing early drafts for feedback, with notes authors can publish to explain how AI was used. It is available on the web at launch, with a desktop app on the roadmap, and is free for those with a Medium account.