AI cover concepts for books, albums and games: a brief, a frame and a handover

A cover has one job: to make a stranger stop for a second and guess correctly what is inside. That makes it one of the best places to use AI images, as long as you use them for the right stage. Generated pictures are very good at the part of cover work that eats the most time, which is trying ten directions before committing to one. They are poor at the last mile: exact type, print files, and the guarantee that nobody else has something similar. This guide walks through three kinds of cover, a novel, an album and a game, and ends with what to hand over to whoever finishes the job.

Start with a one-line brief, not a prompt

Before you open the studio, write one sentence that says what a reader, listener or player should feel at first sight. "Quiet dread in a small coastal town." "Warm, slow, late-night guitar." "A bright, chaotic co-op game about cooking." Every prompt you write afterwards is a different picture of that sentence. Without it, you end up choosing between pretty images instead of choosing the right one.

Book covers: tall frame, one symbol, a clean top third

Most book covers are portrait, and 2:3 is the closest of the common frames to a trade paperback, as the aspect ratio guide explains. Genre readers scan covers for signals: a lone figure seen from behind for literary fiction, a single object in hard light for a thriller, rich pattern and colour for fantasy. Pick one signal and make it big.

Leave the title area empty and set the type yourself afterwards. Models still misspell words often enough that a generated title is a gamble, and a cover title has to be perfect. The guide to leaving space for text covers how to ask for that empty area so it actually stays empty.

Album covers: the square, and the thumbnail it becomes

Album art is 1:1, and most people will first see it at the size of a fingernail in a streaming app. That changes the rules. Fine detail disappears; shape and colour survive. Good album concepts tend to be one of three things: a strong graphic shape, a texture that sets a mood, or a portrait so close that it reads at any size.

Game key art: wide, layered, built for crops

Games need art that works as a store banner, a capsule image and a social post, often from the same picture. Render wide, in 16:9, with the main subject in the middle and room on both sides, so the image survives being cropped to a narrower shape later. Layer the scene, foreground, subject and background, because depth is what makes key art feel like a world rather than a picture.

Characters are the hard part. If your game has fixed character designs, use a sketch or an existing render as a reference image so the concept stays close to them, and expect to correct details by hand. Groups of characters bring the usual problems with hands and counts, so describe "a few chefs" rather than an exact number where you can.

Explore cheaply, then finish one

Cover exploration is volume work: a dozen directions, then three, then one. Do the dozen on Still Lite, from €0.30 a render, and move to Still only for the shortlist. The price of every render shows on the Generate button before you confirm, so a session of exploration never costs more than you saw. When one direction wins, re-render it at the top quality setting, at €0.60, as the file you hand over.

What to hand the designer

• The one-line brief, so the finished cover answers the same question.
• The chosen image at the largest size the model gives, plus the two runners-up.
• The exact prompt and model of each, so a variant can be made later.
• A note of where the title and the author or artist name should sit.

Print is a separate step. The studio returns RGB image files sized for screens, at up to 2K on its own still models, while a printed cover needs a set physical size, bleed and usually a colour conversion. Some covers will need an upscaler, which the models page lists alongside the image models, and all of them need a designer or a print template to finish.

What AI cover concepts cannot do

They cannot guarantee originality. A model can produce something that looks close to an existing cover, and nobody checks that for you, so look before you publish. They cannot set reliable type. They cannot give you a print-ready file. And whether you may use an image commercially depends on the terms and the law where you sell, which the ownership guide goes through. Publishers and stores may also have their own rules about AI art; read them before you build a launch around a concept. Used as a sketchbook, it saves days. Used as the final cover with no human pass, it is a risk you take on yourself.