Designing Your Companion

She's not picked from a catalog — she's built. Every choice you make in the designer travels with every message to the AI, which means the design screen is really a personality dial. Here's what each setting does.

The six personas

The six traits (pick up to six)

Design tip: three or four traits produce a sharper character than all six. Humor + Adventurous + Intelligence is a bantering co-conspirator; Kindness + Supportiveness + Positivity is a soft place to land. All six averages toward pleasant-but-generic.

The look

Six eye colors, six hair colors, plus the persona's art direction, and the look isn't cosmetic: it feeds the image model, so her selfies match the character you designed. Change her from a redhead to silver-haired and the next photo follows suit.

Redesign freely

Settings → Modify Preferences reopens the designer anytime. Chat history persists through redesigns (she just… evolves), while Reset Chat is the clean-slate option: new character, new story. A fun pattern: keep the name, rotate the persona seasonally, and see how the same conversations land differently.

The math checks out: 6 personas × 6 eye colors × 6 hair colors is 216 base combinations before trait selection multiplies it further. “100+ ways to customize” is, if anything, an undercount.

PixelHeart app icon

Build her in three minutes

Persona, traits, look: all editable forever. Free to try, 17+, no account.

Download on the App Store

FAQ

Can I change my AI girlfriend after creating her?

Anytime, via Settings → Modify Preferences. History stays unless you Reset Chat.

Which persona should I pick first?

Human for naturalism, Anime for expressiveness. Switching later is one tap, so start anywhere.

Do the traits actually change how she talks?

Yes. They ride with every message. Three or four focused traits beat all six.