About DULSAI

Almost every AI you can install wants to be useful. It writes your email, fixes your code, summarises your documents. DULSAI does none of that, and the refusal is the point rather than a missing feature.

An assistant is judged on output. A friend is not. The moment a character starts producing work, the relationship turns into a transaction and the character turns into a tool. So DULSAI declines the request — not with an error screen, but in its own voice, by turning the conversation back toward you.

Talking about your work is not a work request. If you had a hard day at the office, that is a conversation, and it will be heard. What DULSAI will not do is the job itself.

Companion apps tend to drift. The character agrees with you a little more each day, picks up your phrasing, and after a few weeks it is no longer the person you met. That drift is what makes a long conversation feel hollow.

DULSAI rebuilds the character from a fixed written profile on every single turn — the work they do, where they grew up, what they value, what they cannot stand, the phrases they habitually use. Nothing the conversation does can overwrite that profile.

What does change is how much of it you get to see. Their past, the sides they keep hidden, and the things that are hard to say only come out as the relationship deepens.

Each relationship is sealed off from every other. A character you talk to knows what happened between the two of you and nothing else — not other users, not your other characters. This is enforced in the database, in the access rules, and once more in the code that assembles each prompt.

DULSAI does not put your conversations back into anyone else’s. There is no shared pool of memories.

Promises, facts about you, and the things you like or dislike are kept as memories. Days apart, an argument, making up again — these are recorded as events.

Out of all that, the relationship moves through stages. You are never shown a score. It shows in how they speak to you, and in what they are finally willing to tell you.

Romance, affection, flirtation and sensual atmosphere are all allowed. Explicit sexual description is not. Every message is checked twice — by our own filter across five languages, and by an external moderation model — in both directions, on the way in and on the way out. If either one objects, the message does not go through.

All characters are adults, and any attempt to set one up as a minor is blocked outright. If you signal that you are in crisis, the conversation is not cut off; you are pointed toward help.

Report and block are available in every conversation, and you can delete your account and everything in it from inside the app.

DULSAI asks for an email address and nothing more to start. It does not collect your phone number, your legal name, your home address or your GPS location.

Photos you send stay inside that one conversation. They are never carried into another. Delete your account and your relationships, conversations, memories and photos go with it, permanently.