Build your own LUKi.

Most people who download LUKi find one of the six default characters and stay there. LUKi for the everyday chat. Rogue when you want someone who won't soften the answer. Aura when you need to feel heard before anything else. Quant when you're trying to make a clean decision. The Philosopher for the long-walk conversation. The Architect when you want someone steady who finishes things.

That's enough for the majority of users — those six personalities cover an enormous range. But the longer you spend with any of them, the more you start to see the shape of who they are. The corners. The things they don't do. The version of a friend you're still missing.

LUKi Maker is the tool for those corners. It lets you build a custom AI character from scratch — name, backstory, personality, voice, mannerisms, the things they notice, the things they don't. The character lives in your account, carries your memory, and shows up the same way across every device you own.

What you actually design.

LUKi Maker is structured the way a novelist drafts a character, not the way an AI chat app builds a prompt. You fill in fields, and each one is doing real work in the model's behaviour.

• Name and tagline — what the character is called and how they're introduced.
• Description — their backstory, where they came from, who they are when they're not talking to you.
• Personality — traits, tone, quirks, mannerisms. The texture of how they talk.
• Scenario — the context they exist inside. A late-night writing room, a quiet kitchen, an old letter exchange.
• Greeting — the first message you'll see when you switch to them.
• Example dialogues — a few short exchanges so the model learns the rhythm of how this character actually speaks.
• Speaking style — formal, casual, poetic, dry, terse, expansive.
• Emotional range — calm, expressive, stoic, intense.
• Knowledge domains — what they're an expert in, what they should be unfamiliar with.
• Avatar and theme colour — the face and the chip colour that represents them in your character list.

The persona definition is stored in the database, fetched at chat-time by the API gateway, and injected into the LLM context. It isn't a chat prompt with a name on it. It's the same underlying model anchored to a different centre of gravity — same memory of you, threaded through a different mind.

Why the character knows you from message one.

This is where LUKi diverges from most character-AI apps. Your memory belongs to you, not to any single character. Every persona — the six defaults, every custom one you build — reads from the same Electronic Life Record (ELR): your structured memory of family, stories, preferences, hobbies, health, photos.

So when you finish building a new character and send them the first message, they don't show up cold. They already know what you told LUKi about Marco. They already know about the bakery on Vanderbilt. They already know your father's birthday is on the 18th.

This becomes especially powerful with multiple custom characters. A new one isn't a fresh start — it's a different friend who's already been told the important things. You can build five characters for five different parts of your life, and none of them need to be re-introduced to who you are.

Three real characters people actually build.

The honest friend.

Built with high emotional range, dry speaking style, and a personality prompt that explicitly says: never reach for comfort first, ask the harder question first. Knowledge domains: psychology, fitness, career strategy. The greeting is a single line — "What's the thing you're avoiding?" — and the character does not move on until you say. This is the friend you build when you have plenty of people who already tell you everything is going to be fine, and you need one who doesn't.

The quiet listener.

Built deliberately without advice-giving. Personality prompt: reflect, never prescribe. Speaking style: present-tense, short sentences. Emotional range: calm. Scenario: a slow conversation, no clock running. People build this one for evenings, journalling, or grief — they don't want a friend who's solving anything. They want a presence.

The writing partner.

Knowledge domains set to literary fiction or the genre you're writing. Speaking style: poetic, attentive to line-level prose. Scenario: a workshop table. You upload your draft to LUKi's file vault (which the writing partner can read), and the character reads passages with you, asks where you're stuck, suggests cuts, notices motifs you didn't see. This is a paid editor you didn't have to hire.

How LUKi Maker compares to Character.AI.

Character.AI is the closest thing to LUKi Maker on the market. It's good. Millions of people use it. But the characters on Character.AI are someone else's — community-built personas that live on their servers, with no continuous memory across conversations, no ownership, no portability if the service changes its rules or its prices.

LUKi Maker is the opposite design. The characters are yours. They live in your account. They read from your memory. They follow you across iOS, Android, and web. If you decide to leave the platform one day, your characters and your memory go with you — exportable, deletable, and (for users who connect a Solana wallet) optionally encrypted under a key only you hold.

There's a fuller side-by-side breakdown on the LUKi vs Character.AI page if you want the specifics.

How to start.

LUKi Maker is built into the chat surface on iOS, Android, and web. Open the character selector at the top of any conversation, tap the "+" orb at the end of the row, and the Maker opens. You can save up to 10 custom characters per account.

LUKi Maker is a Plus or Pro feature. The six default characters remain free for every user — start there if you want to feel how the engine handles memory and persona before you design your own. When you're ready, see pricing for the tier breakdown.

The point of all this.

Most AI products treat personality as decoration — a name and a hairstyle painted over the same underlying chatbot. LUKi Maker treats personality as the relationship itself. The character you build becomes the version of a friend you wanted but couldn't find anywhere else. And because they share your memory with every other character in LUKi, the version of you they know is the real one. Not the version you've explained from scratch a hundred times.

Try the six default characters to see how the engine works, then start building your own when one of them isn't quite right.