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.

For most people that's enough, and those six cover a lot of ground. But the longer you spend with any one of them, the more you 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. You build a custom AI character from scratch: name, backstory, personality, voice, mannerisms, the things they notice and the things they walk past. The character lives in your account, carries your memory, and shows up the same way across every device you own.

What you design.

LUKi Maker is structured the way a novelist drafts a character rather than the way an AI chat app builds a prompt. You fill in fields, and each one does 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 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. That gives you the same underlying model anchored to a different centre of gravity, with the 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 rather than to any single character. Every character, including the six defaults and every custom one you build, reads from the same Electronic Life Record (ELR): your structured memory of family, stories, preferences, hobbies, health, and 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, that the bakery on Vanderbilt matters, and that your father's birthday is on the 18th.

This matters most once you have several custom characters. A new one arrives as a different friend who has already been told the important things. You can build five characters for five parts of your life, and none of them need re-introducing 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 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 answer. This is the friend you build when you already have plenty of people who 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, when what they want is a presence rather than a friend who is solving anything.

The writing partner.

Knowledge domains set to literary fiction or whichever 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, and notices motifs you missed. It does the work you would otherwise pay an editor for.

How LUKi Maker compares to Character.AI.

Character.AI is the closest thing to LUKi Maker on the market, and millions of people use it. But its characters are someone else's: community-built characters that live on their servers, with no continuous memory across conversations, no ownership, and 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, and they follow you across iOS, Android, and web. If you leave the platform one day, your characters and your memory go with you: exportable, deletable, and, if you connect a Solana wallet, 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 Core or Eternal feature. Start with the six default characters if you want to feel how the engine handles memory and character 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 and couldn't find anywhere else. Because they share your memory with every other character in LUKi, the version of you they know is the one you live in, not the one 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.