Pick a style, type one headline, get a paste-ready cover prompt. All 47 styles of the control tower are here — 48 cards, because one style ships two opposite branches and each gets its own locked card.
Paste it straight into ChatGPT / Genspark / Gemini / Nano Banana to render.
✦
Waiting to generate
Pick a style and type a headline on the left — the prompt appears here.
Want to run these styles yourself?
All 47 styles of the control tower are on this page. The paid pack is the deployable version: the 47 style source files, the master routing setting, cross-platform setup guides and the SOPs — installable into your own ChatGPT / Gemini / Claude so the styles run inside your workflow instead of through this page.
Cover Studio is a free AI cover-prompt generator for newsletter writers, creators and marketers who need a magazine-grade cover fast. All 47 styles of the Dock-to-AI control tower are available — 48 cards in total, because one style ships two opposite visual branches and each gets its own card with its branch locked. Filter the library by what the cover has to do (opinion, product, story, tutorial, strategy, recommendation, data, news, event, portrait), pick a style, choose one of 5 aspect ratios, type a headline — or leave it empty and let the tool draft one — and copy the result into ChatGPT, Midjourney, Genspark or Gemini to render. What makes the output different from a generic prompt writer: each prompt is composed against that style's complete source doctrine, injected in full, so the palette, grid, type personality and page structure come from the style file itself rather than from a keyword summary of it.
Why is the output better than a generic cover prompt? / 为什么它出的提示词比一般的封面提示词好？
Because the model writing your prompt is given the style's entire source file — visual keywords, composition rules, palette, type rules, page types and the style's own image-prompt recipe — rather than a one-line summary of it. That single change is what closed the gap between this page and a purpose-built GPT loaded with the same style files.
Is Cover Studio free? Do I need to sign up? / 封面生成免费吗？需要注册吗？
It is completely free with no signup or login. Pick a style, enter a headline and generate.
完全免费，无需注册或登录。选风格、填标题就能生成。
Do I get an image or a prompt? / 输出的是图片还是提示词？
A prompt. This site does not render images — copy the prompt into an image generator such as ChatGPT, Midjourney, Genspark, Gemini or Nano Banana and it produces the cover. Keeping rendering out means you choose the image tool and you own the result.
Five: portrait 3:4 (RedNote / Pinterest), square 1:1, video cover 16:9, wide banner 2.35:1 for newsletter and article headers, and tall poster 9:16 for Stories and Reels. The chosen ratio and its pixel target are written into the prompt body, because an image tool handed a prompt with no stated shape falls back to its own default.
Because the prompts are English and the two should not drift apart. An English interface producing English prompts can be handed to an assistant or a teammate who does not read Chinese, and the engine only has to maintain one prompt path — the version that gets tested every time.