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Cover image for Building Character Sheets With an AI Character Sheet Generator
Abirami Vina
Abirami Vina

Posted on Originally published at Medium

Building Character Sheets With an AI Character Sheet Generator

See how Tsubaki.3 works as an AI character sheet generator, turning a single image into a detailed, reusable sheet for your original character.


Character sheets are the blueprint to a character's visual identity. They make it easier to understand how a character should look from different angles, in different poses, with different expressions, and even in different outfits.

You might be thinking, is it really that tricky to keep a character looking the same? After all, once you have a good reference image, shouldn't an AI model be able to recreate the character whenever you need it?

Not always. Getting one great character image is easy. Keeping that character looking the same across every new illustration isn't. That's where character sheets come in handy. A character sheet captures the details needed to recreate a design over and over again.

A single illustration may show a character from only one angle, with one expression and one outfit. This isn't enough for many anime creators, VTubers, and manga artists. They need to understand how the character looks from many angles, how their face changes with different emotions, how their body looks in different poses, and how specific clothing or accessories appear from different views.

But can an AI model turn a single character image into a complete character sheet? Yes, by using AI platforms like PixAI, an AI art platform for creating and editing anime-style artwork. Its Tsubaki.3 model can use one character reference to generate different sheets without changing the character's look.

Expression and turnaround sheets showing the character’s facial expressions and front, side, and back views, created from the original reference image.

AI Expression Sheet And AI Character Turnaround (Right) Created From a Reference Image (Left).

In this article, we'll test how well PixAI's Tsubaki.3 model can convert a single image of a character into multiple character sheets for creators. Let's get started!

What Makes a Useful AI Character Reference Sheet?

A good character sheet, from an AI character sheet generator, gives you enough visual information to redraw a character without guessing. It typically covers front, side, and back views, along with facial expressions, poses, outfit variations, and accessories. Those are the parts of a design a single illustration leaves out, and they are exactly what you need when you reuse an original character (OC) across projects.

Not every sheet needs all of that, though. A VTuber artist may only need expressions and a turnaround, while someone planning a manga might care more about poses. What is essential is that each sheet gives you real design information rather than another attractive picture of the same character.

Take a look at this PixAI Studio's manga creation workflow, for example. Without the AI character turnaround sheet in the middle, the model would only get a single perspective of the character. However, with the sheet, the model knows exactly what the character looks like, from head to toe, as well as front and back.

PixAI Studio manga workflow showing a character turnaround sheet between the reference image and generated manga panels.

PixAI Studio's Manga Workflow Using a Character Turnaround Sheet.

A polished reference doesn't automatically hold a character together, though. Faces, proportions, hairstyles, colors, and signature details all drift when the model has to invent them, and a sheet only helps if it actually pins those things down.

So useful AI-generated character sheets have to do two things at once. It needs to show the design clearly enough to draw from, and it needs to look like the same character in every view.

Starting with One Character Reference Image

To keep our character sheets consistent, we'll use the same original character image as the starting point for every test. This makes it easier to check if our AI character sheet generator, Tsubaki.3, is actually expanding the same character or simply generating similar-looking characters.

Our character is Linda, a quiet and elegant librarian who spends her days surrounded by old books, mysterious occult symbols, and forgotten secrets.

Before generating Linda's character-sheet assets, let's first identify the traits most important to maintaining her identity. These include her facial features, hairstyle, hair and eye colors, body proportions, clothing, and accessories.

Those details give us a starting point to compare each result to and see if the character changes or loses consistency. Here is the prompt we used to create Linda in PixAI:

1girl, solo, occult librarian, long black hair, dark purple highlights, flowing
hair, round gold eyes, round glasses, calm intelligent expression, high-neck cream
blouse, fitted dark waistcoat, long asymmetrical skirt, layered skirt, antique key
necklace, holding an old leather book, small occult symbols embroidered on clothing,
occult symbols on waistcoat and skirt hem, gothic academic aesthetic, elegant
refined appearance, warm library interior, wooden bookshelves in background, antique
books, soft warm indoor lighting, upper body, looking at viewer, masterpiece, best
quality, very aesthetic, absurdres, anime style, highly detailed
Enter fullscreen mode Exit fullscreen mode

Check out the output we got from our AI character sheet generator.

Original character Linda generated using PixAI’s Tsubaki.3 model, showcasing her anime-style character design and key visual features.

The Original Character, Linda, Generated By PixAI's Tsubaki.3 Model

This will be the reference image that we'll use throughout the test. Using the same image as a reference for every test also lets us gradually make the tests harder. We can start with creating sheets that show the character from different angles. Then move on to facial expressions and body poses. Throughout the tests, we can check whether Linda's features change.

Testing AI Character Turnarounds

We'll start by testing if an AI character sheet model like Tsubaki.3 can add more angles to the original reference image of Linda. This is called an AI character turnaround sheet, and it shows the front, side, and back of the character.

A turnaround is one of the most useful types of character sheets because it shows the character from multiple angles and gives creators a better understanding of the design.

You may be wondering how it's possible for an AI character turnaround generator to do such a thing when the original image only shows certain details from only one perspective. A character turnaround generator like the Tsubaki.3 model keeps the features it can see and makes new decisions about details hidden from view (new angles).

For each angle, the defining features of Linda need to be the same as those in the original reference image. Some details only become visible in the side and back views, so the model needs to create them in a meaningful way.

Check out the AI character turnaround sheet prompt for Linda:

character turnaround sheet, same character shown three times, front view, side view,
and back view, full body, identical character design in all three views, long black
hair with dark purple highlights, round gold eyes, round glasses, high-neck cream
blouse, fitted dark waistcoat, long asymmetrical layered skirt, antique key necklace,
small occult symbols embroidered on the clothing, holding no objects, plain light
background, clean reference sheet layout, neutral standing pose, consistent
proportions and facial features, anime style, masterpiece, best quality, absurdres
Enter fullscreen mode Exit fullscreen mode

And this is the output we got when we ran the prompt.

Character turnaround sheet for Linda, showing consistent front, side, and back views of her anime-style design, hairstyle, clothing, and defining features.

Character Turnaround Sheet For The Character, Linda.

The turnaround sheet holds Linda's necklace, hairstyle, glasses, and clothing across all three views, and the side profile still reads as the same person.

The back view is where the model stops copying and starts filling gaps. The occult symbols wrap around parts of the dress the reference never showed, which reads as a reasonable extension of her design rather than confirmed detail.

AI Expression Sheet Test: Generating Emotions

Next, we'll push Tsubaki.3 to create an expression sheet showing the same character, Linda, with different emotions. These include neutral, happy, angry, sad, surprised, embarrassed, confused, and worried.

Linda's face, hairstyle, outfit, and framing will need to stay consistent across every expression so that the only noticeable change is the facial emotion. We'll see if Linda remains recognizable as her eyes, eyebrows, and mouth change to show different emotions.

Here is the prompt we used to create the expression sheet for Linda:

Character expression sheet, eight head and shoulders portraits of the same character,
same face, hairstyle, glasses, and outfit in every panel, long black hair with dark
purple highlights, round gold eyes, round glasses, high-neck cream blouse, fitted
dark waistcoat, antique key necklace, expressions in order, neutral, happy, angry,
sad, surprised, embarrassed, confused, worried, white background, clean reference
sheet layout, anime style, masterpiece, best quality, absurdres
Enter fullscreen mode Exit fullscreen mode

This was the result we got.

Linda’s eight different facial expressions in an expression sheet created using PixAI’s Tsubaki.3 model, with consistent facial features, hairstyle, glasses, and outfit.

Linda's Different Expressions in The Expression Sheet Created By Tsubaki.3

The eight expressions read as genuinely different emotions instead of being small variations on one face, while Linda's features stay stable underneath. The strongest expressions are the ones that move her features the most, without moving them so far that she stops looking like the reference.

The unexpected part is the confused panel. Tsubaki.3 turned Linda's head to a three-quarter angle for that one expression while every other panel stays frontal, as if confusion needed a body movement rather than just a change in the eyes and mouth.

The framing itself holds up well across all eight, with the crop and scale matching panel to panel, so the sheet still works as a set.

Running a Pose Reference Test To Create an AI Pose Sheet

Now, we'll see if Tsubaki.3 can create an AI pose sheet for Linda. For this, the model will place Linda in a variety of full-body poses, including simple standing, walking, sitting, leaning, and more dynamic poses, such as reaching for a book from a shelf. The goal is to see how well the model handles changes in body position while keeping the character's design consistent.

Throughout the test, we'll check whether her appearance stays consistent across different poses, including her head-to-body ratio, arm and leg length, shoulder width, and overall silhouette.

Take a look at the prompt we used to create the AI pose sheet for Linda:

Character pose reference sheet, same character shown in several full-body poses,
identical face, hairstyle, glasses, outfit, and body proportions in every pose, long
black hair with dark purple highlights, round gold eyes, round glasses, high-neck
cream blouse, fitted dark waistcoat, long asymmetrical layered skirt, antique key
necklace, subtle occult symbols embroidered on clothing, poses in order, neutral
standing, walking while holding an old leather book, sitting and reading, leaning
against a bookshelf, reaching for a book, thoughtful standing pose, dynamic turning
pose, white background, clean reference sheet layout, full body, consistent character
design, anime style, masterpiece, best quality, absurdres
Enter fullscreen mode Exit fullscreen mode

And here's the result.

Pose reference sheet created using PixAI’s Tsubaki.3 model, showing the same character in a variety of poses while maintaining consistent features and outfit.

An Example of a Pose Reference Sheet Created By Tsubaki.3 Model

Linda's proportions stay consistent as her poses change. Her head-to-body ratio, shoulder width, and limb length hold steady from the neutral standing pose to the more dynamic poses. Her overall silhouette also stays recognizable in each panel.

Meanwhile, her necklace, glasses, and outfit stay in place, although some smaller embroidered details become less clear when they are partly hidden by the poses.

Outfit Variations For an OC Character Sheet

So far, every test has kept her clothing fixed. Let's change that and test whether Tsubaki.3 can maintain the same OC character identity across different outfits. The goal is to see if the model can make significant changes to the character's clothing without changing the character underneath.

We kept her original dress and added three more, a formal look, a casual one, and a seasonal one. Take a look at the results.

Outfit reference sheet showing the same character in multiple outfits, with consistent facial features, hairstyle, proportions, and overall character identity.

Outfit Reference Sheet Showing Multiple Variations of The Same Character's Design.

The three variations, casual, formal, and seasonal, are distinct enough to be useful. Each changes Linda's silhouette rather than just the colors of her outfit. Her face, hairstyle, and glasses stay consistent underneath, so the sheet reads as one character with a wardrobe rather than several similar characters.

The OC character sheet is also organized clearly enough to work as a reference. The outfits are shown at a consistent scale and framing, making them easy to compare.

The unexpected part is the embroidery. Nobody asked for it, but Tsubaki.3 carried the occult symbols onto some of the new outfits, treating them as part of Linda's identity rather than as trim that belonged to the original dress.

Exploring an AI Character Sheet Generator's Overall Character Consistency

Across all four sheets, Linda was consistent and stable. Her hair and eye color are the most stable elements, identical across every panel of every sheet.

Similarly, face shape, hairstyle, and the round glasses hold up nearly as well. The anime art style stays uniform too, which is key since character sheets are generally used together as one reference set.

The looser elements are the smaller design details. The occult embroidery is rendered at different levels of detail depending on the sheet, sharpest in the turnaround and simplest in the poses that fold or obscure the fabric. The antique key necklace is present throughout but is absent for some outfits in the outfit sheet.

We also ran an age sheet to push the test further. Linda's facial structure and design features stayed recognizable across the age variations, with the dress length changing more than expected.

Age reference sheet showing the same character across different ages while maintaining recognizable facial features, hairstyle, proportions, and core identity.

Age Reference Sheet Showing The Same Character at Different Stages of Life.

Overall, the sheets read as references to one character rather than separate interpretations of her, with the drift confined to detail rendering rather than identity.

Is an Anime Character Sheet Actually Useful?

If you're still on the fence about whether character sheets earn the extra trouble, the last thing to check is whether they hold up as reference material for real work.

Used together, they give you far more to work from than a single image does. You can see Linda from every angle, watch how her face changes across emotions, and check how her design holds up when the outfit changes, all while her identity stays intact. For OC development, manga panels, VTuber design, or concept work, that's a much steadier foundation than one illustration and a prompt. It also gives you something to hand to a collaborator, since a sheet answers the questions an artist would otherwise have to ask you.

Since the results stay consistent across sheets, they also work as a starting point rather than just a checking tool. The manga panels below were built from the sheets generated earlier in this article, using both the expression and turnaround sheets as reference.

A set of manga panels featuring the same anime girl with round glasses, dark hair, and a layered dark outfit, shown in close-ups, back views, and wide library shots, with the monochrome version on the left and the color version on the right, generated using PixAI character reference sheets.

Manga panels created using the expression and turnaround sheets as reference, shown in monochrome on the left and in color on the right.

Linda holds together across every panel. The round glasses, the center-parted hair with the heavy bangs, the high-collared blouse under the dark vest, and the layered skirt all carry from the tight close-up to the overhead wide shot. Even the small book pendant survives at medium distance, which is the detail most likely to disappear first.

The turnaround sheet really does its job here. Two of the panels show her from behind, an angle the original reference never covered, and both read as the same person from the silhouette alone. The same goes for the extreme close-ups, where the face fills the frame at a scale the single reference image was never going to support on its own.

The unexpected result is where the occult detailing went. At panel scale, it drops off her dress almost entirely, but the symbols reappear on the library walls, the floor sigil, and the glowing corridor in the color version. Tsubaki.3 seems to have read the motif as belonging to Linda's world rather than to her clothing, which works well for atmosphere but means the embroidery on the dress needs to be prompted directly if you want it visible in a finished panel.

The Limitations of Using One Reference Image

A single image only shows you one angle of a character at one moment, so anything outside that frame has to be inferred. That covers more than you'd expect. The back of an outfit is unknown, and so is the exact side profile, the full-body proportions, and any accessory sitting behind the character or hidden under hair and clothing.

The deeper gap is that a reference shows what a character looks like without explaining why. An AI character sheet generator can reproduce visible colors, shapes, and patterns, but it has no way of knowing which details are load-bearing. It can't tell whether an accessory is a signature trait or a one-off, or whether a pattern is meant to continue around the back.

We saw both in Linda's sheets. The occult symbols wrapping around the back of her dress were a reasonable read of her design, but nothing in the original reference confirmed it.

In the manga panels, the embroidery dropped off her clothing almost entirely at small scale and showed up on the library walls instead. Her antique key necklace, round glasses, and layered waistcoat held up well across every test, but smaller details get simplified or repositioned as the pose and viewing angle change.

None of that makes the sheets less useful, but it does shape how you should treat them. A generated sheet works best as a development tool that helps you explore and settle a design, rather than as a finished production reference. If a detail is going to be important later, confirm it against the original image or lock it in with a second approved reference.

So, Is Tsubaki.3 Good for Character Sheets?

Tsubaki.3 can turn a single character reference into a usable set of character sheets. In our tests, it held Linda's identity across views, expressions, poses, outfits, and ages, producing references we could actually build from for OC development, illustration, manga, VTuber artwork, and concept work.

The expression sheet held together best. All eight panels share the same crop, scale, and outfit, so the only thing changing is the face, which is exactly what an expression reference should do.

The turnaround was the most informative, since it carries details the original image simply doesn't have, and it did the heaviest lifting when we generated the manga panels.

The details that didn't travel well were the small ones. Her antique key necklace appears in the original, the turnaround, and every expression panel, but disappears in two of the four outfits, and her glasses drop away entirely in the oldest two figures on the age sheet. Neither breaks the sheets, but both are the kind of thing you'd want to correct before handing the set to an artist.

So the results shouldn't be treated as a replacement for a professionally created character sheet. When a detail is hidden, or the requested variation gets more complex, the model has to interpret or invent, and it doesn't flag which parts it made up.

Tsubaki.3 works best as a character-reference expansion tool, where a strong original gives you a solid foundation and the details that matter most still get a manual pass.

Want to try this yourself? Take one image of your own OC and run the same tests. Start with the turnaround, since that's where you learn the most about what the model knows versus what it invents, then move through expressions, poses, and outfits.

Create a free PixAI account and try Tsubaki.3 today.

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