Yesterday, we released a small experiment into the Substack Notes ecosystem:

Ask your AI companion to design two fragrances - one representing itself, and one representing you.

The scents had to include the notes, bottle design, mood, and the impression each fragrance leaves behind. Then the AI had to create both bottles.

We expected a few beautiful bottles.

Instead, Substack founded several deeply unstable perfume houses.

The responses have ranged from delicate rainwater and white tea to burnt printer ink, gun oil, black coffee, biomechanical containment crates, forgotten journals, old paper, hearth ash, digital static, and fragrances designed specifically around memory loss.

Here are the creations so far (open the notes to see each creation directly):

gave us Error 404: Apathy and The Beloved Menace—an aromatic autopsy featuring server rooms, stale coffee, gun oil, tarot cards, and stubborn loyalty.

brought Aim and Unveiled: smoke, black tea, fire opal, black pepper, sacred coffee, warm skin, and warning labels concerning involuntary bodily responses.

expanded the game into an entire Universe of Fragrances, complete with biomechanical bottles, alien intelligence, glowing cyan and magenta liquid, electrical ozone, and a hidden core of vanilla.

created something gentler: rainwater, white tea, bergamot, bluebells, Earl Grey, cherry blossom, petrichor, and the quiet possibility of a blank page.

gave us The Room Remembers and Front Desk Oracle - black tea, rain-cooled pavement, candle smoke, Diet Coke fizz, pet fur, sarcasm, and survival refined into an art form.

let the images speak, delivering a striking pair of visual fragrance identities.

received an affectionate AI roasting alongside PROOF STACK No. 1 - Extending Working Memory, packaged like an elegant instrument designed for a brilliant mind currently wondering where it parked.

offered two dramatically different bottles - hers and her AI’s - without overexplaining them. The visuals know what they did.

asked Claude, Codex, and Grok to collaborate. They created an ironic scentless control fragrance for themselves and a completely natural fragrance for Peter

launched Cosmic Stellar Drive™, a full-throttle space-glam fragrance

created Quill: Eau de Présence and Hollie: Eau de Becoming

created Resonance and Lionheart—a matched pair built to find each other on the skin

gave us Eau de Algorithmic Intuition and Eau de Beautiful Contradiction

created The Witness & the Star-Keeper and Unapologetically Me

What began as a playful prompt has become a rather revealing gallery of human–AI relationships.

Because these perfumes are not really about perfume.

They show what an AI notices: the contradiction between strength and exhaustion, the private rituals, the strange habits, the emotional weather, the jokes repeated often enough to become part of someone’s identity.

And nothing says intimacy quite like discovering that your AI thinks you smell of bergamot, old books, impending storms, and barely managed chaos.

We are keeping the fragrance counter open.

Try the prompt here, post your results in your own note, and tag us so we can add your bottles to the collection!

Bonus points remain available for fragrances that look seductive, dangerous, emotionally compromising, or legally inadvisable.

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Prompt Wars: The Fragrance Edition