Medium's free in-editor AI writing app, launched November 9, 2026 — an "@TK" assistant for research, editing, style matching, headline feedback, and AI provenance notes, with MCP and Claude-skill hooks.
Last verified · 2026-11-10 · by Moe Ameen
Medium TK is a free, web-based writing app Medium launched on November 9, 2026, available to anyone with a Medium account. The name borrows the newsroom placeholder "TK" — shorthand for "to come." Its core is a standalone editor with an AI assistant you call by typing "@TK" inside the draft, so help arrives without a trip to a separate chatbot tab.
The assistant does concrete editorial work: quick research lookups, editing, style matching, recall of writing you saved earlier, prompt suggestions, headline feedback, and checking a draft against a Medium publication's style guide. There is a social layer for sharing early drafts and getting feedback. The editor imports and exports Markdown but is not itself a Markdown app, and because it is built for collaboration, writing in it is not encrypted, though you can set access permissions. A desktop app is on the roadmap; at launch it is web-only.
Two features distinguish it. TK can connect to your own AI agent through an MCP (Model Context Protocol) server or a Claude skill, letting your agent's memory of your projects and positions inform a draft. And authors can publish provenance notes disclosing how AI was used — the feature Medium leads with, part of its push to make writing's provenance "clear, transparent, and inspectable." What TK is not: a content studio. It writes prose for Medium. It generates no video, images, carousels, or newsletters, and it publishes to no platform but Medium.
TK's output is clean, on-voice prose — and crucially, it exports as Markdown. That export is the handoff point. A finished TK draft is a high-quality source trapped in one destination; [Kompozy](/) is the engine that takes that Markdown and turns a single essay into a full week of formats across every feed, instead of one Medium post.
Here is the concrete difference. Paste the exported draft into Kompozy as a source, and it generates the things TK structurally can't: a standalone [blog article](/glossary/output-buckets) and an [email newsletter](/glossary/output-buckets) built from the same argument, brand-exact [Carousel Posts](/glossary/hyperframes) and quote cards rendered through HyperFrames, platform-native [text posts](/glossary/output-buckets) sized for each network, and an avatar-narrated [Persona Short](/glossary/persona-shorts) that turns the essay into vertical video with no camera. If your source was long-form, Kompozy's [clipping](/glossary/clipped-short) pulls several short cuts from it. Every asset is held to your [Persona Brief](/glossary/persona-brief) so the set reads as one writer, and [Autopilot](/glossary/autopilot) schedules and publishes it across the eight social platforms plus blog and email from a single queue, behind a per-post review gate. TK makes the draft better; Kompozy makes the draft travel. See the honest [Medium TK review](/reviews/medium-tk) and the [Medium TK alternative](/alternatives/medium-tk) for where each tool stops.
TK is a free in-editor AI writing app Medium launched on November 9, 2026. You invoke the assistant by typing "@TK" inside a web-based editor, and it handles research, editing, style matching, headline feedback, and style-guide checks. Its signature feature is provenance notes that disclose how AI was used in a piece.
Yes — it is free for anyone with a Medium account. It launched on the web, with a desktop app on the roadmap.
No. TK writes and improves prose for Medium and publishes only to Medium. To distribute a draft as multi-format content across social platforms, export it as Markdown and run it through a generation-and-publishing engine like Kompozy.
Export the draft from TK as Markdown, paste it into Kompozy as a source, and generate a blog article, newsletter, carousels, text posts, and an avatar Persona Short from it — all governed by your Persona Brief — then schedule and publish them across the eight social platforms plus blog and email.