How do you use an AI character generator to make a full character?

The short version: open the AI character generator, write who your character is and what they want, pick a genre and an art style, and you get a full character card with a portrait drawn to match.

An AI character generator does the slow part of making a character for you: it names them, gives them a personality with a weakness, writes where they came from and draws them. What it cannot decide is what the character means to you. The one line you write is where that goes, so this guide is mostly about that line, and about what to do with the character once it exists.

The weakness is the part people skip when they invent a character by hand. Writing coach Ali Luke puts it plainly: a flawless, perfect character is not much fun to read about, and the flaw is what creates obstacles and room to grow. Tabletop players know the same idea from D&D, where a flaw is any vice, compulsion, fear or weakness someone else could exploit. Ren's fear of thunder is small, but it is exactly that kind of handle for a story.

Compare "a samurai girl" with "a wandering swordswoman looking for the teacher who left her". The first gives the generator a costume; the second gives it a want, and a want is what turns a picture into a person. Add a single concrete detail if you have one, such as a scar, a pet or an odd habit, and leave the rest open: the less you fix, the more the card can surprise you. If you have no idea at all, press Surprise me and keep the card that makes you curious.

Prompt

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a wandering swordswoman looking for the teacher who left her

Genre changes the card, not the drawing: the same idea can become a ronin in fantasy and a bounty hunter in sci-fi, with a different backstory and different hooks. Style changes only the picture. Anime and comic tend to read best on social feeds and character sheets, realistic and painted suit book covers and campaign handouts, and cartoon is the friendliest for younger stories. You are not locked in, because the portrait can be redrawn in another style later.

That test decided how our generator draws. Codex made the richer single portraits, but a character you cannot redraw in another style is only half useful, so the generator draws and restyles with Grok. Grok also drew a white comic-book frame around 2 of the 9 pictures, which is why every portrait is trimmed before you see it.

The quickest test of a character is a conversation. The Chat with button opens a chat with the character already set up, the way our AI character chat works, so the model answers as your character from the first line. If a reply sounds wrong, that usually points at a trait or a want the card does not have yet, and it is easier to fix now than three scenes into a story.

For depth, a headcanon generator writes small facts that never make it into the main story: what they eat when nobody is watching, the song they hate, who they write to. When you need a cast rather than a hero, a random character generator gives you side characters in seconds, and the strongest of them can go back into the main generator for a full card and a portrait.

The D&D Basic Rules give every character personality traits, ideals, bonds and flaws, and the card covers most of that: traits as traits, the want as an ideal, the backstory as a bond, and the weakness as the flaw. The story hooks are useful to hand to your Dungeon Master, because they are exactly the threads a DM can pull. Ability scores, class features and equipment are not part of the card, so build those with your game's own rules.

On March 2, 2026 the US Supreme Court declined to hear Thaler v. Perlmutter, which leaves in place the rule that a work made purely by AI has no human author and cannot be registered. What can be protected is the part you add: your idea, your choices and your edits. Basing a character on someone else's is a separate question. Public-domain figures such as Sherlock Holmes or King Arthur are free to reuse, and the list grows every January: in 2026, works from 1930 entered the US public domain. Characters still owned by a studio are not free to reuse.