The heart
A one-billion-parameter language model, about 850 MB, that answers without a connection. Next to it live the memory, the senses and the instinct. It also decides what may be claimed at all.
01 / 08 · Organs
Two organs
The phone is the heart, the PC is the head. The split isn’t a workaround, it’s the rule: anything personal stays with a heart, even when the head would be cleverer. The PC can also run a second, larger heart for long personal conversations. Without the PC, a small head on the phone steps in for factual questions; only after that does the heart answer.
The head
A large model for factual questions, plus vision and training. It’s optional and only reachable from your own network, never from the open internet.
Emergencies are always handled on the phone itself. In an accident the phone is with you and the PC is at home, and every second of waiting would be one too many.
02 / 08 · Character
It has no temperament. It’s given one.
Seven tensions, all balanced at 0.5. Four natures at a quarter each. None of it is preset — it shifts over hundreds of encounters, and ever more slowly.
What it learns about you
Twenty-six qualities across seven areas — Mind, Will, Heart, Expression, Depth, Presence, Vision. All start at zero. It only observes when you talk about yourself without asking a question.
Not a judgement. A mirror.
What it notices in you, it folds into its own manner — it won’t tell you to your face. If you’re direct, it becomes more direct.
It doesn’t claim to know how you feel.
The microphone and magnetic sensor turn what they measure into a colour. If nothing was measured, there’s no colour. An invented mood would be worse than none.
It recognises the way you write.
It measures how long your sentences are, how you punctuate, whether you type umlauts or write “ae”, and which filler words you use. The result is “this reads differently from usual” — never “that isn’t you writing”.
03 / 08 · The lock
What it never passes on
The death of a pet shapes a character. A PIN shapes nothing — it’s a number that belongs to nobody but you. Both are thoughts, and only one of them may go anywhere.
- never goes to the PC — not even when it would be cleverer
- never enters the memory
- never appears in the portrait or in any quotation
- is never trained on
- appears in no file that’s handed on
The secret diary
If a number turns up in a sentence anyway, MISU AI asks whether it should keep it. Say yes and it’s stored encrypted on the device. Say no and it’s gone.
There’s no way out of the secret diary — no export function, on purpose. A function that existed could one day be called by mistake. Delete the app and the key is gone, and the entries are unreadable for good. There’s no recovery, and there isn’t meant to be.
It catches PINs, passwords, TANs, IBANs, card numbers, ID numbers, keys and bare strings of digits — deliberately generously. Holding back one sentence too many costs nothing. Letting one slip through can’t be taken back: once something is inside the model, it doesn’t come out again.
04 / 08 · Memory
What lives where
For “stays with you” to mean anything, it has to say what lives where. The memory is more than a word count — and since 7 September 2026 not everything lives on the phone alone.
The whole conversation
Every message is stored as plain text on the device, with a timestamp and what the microphone and magnetic sensor measured at that moment. That’s the price of remembering anything at all — and it belongs out in the open, not in the small print.
And it goes to your PC, if you connect one
Since 7 September 2026 the conversation travels to your own PC as soon as it’s reachable. The reason: the phone carries a model with one billion parameters, the PC one with four billion — without the same history, the larger one would know less than the smaller. From the phone, it goes there and nowhere else. The app lets exactly one address through, your PC’s; everything else is refused, even by accident. And whatever the credential lock catches never leaves at all — that check happens twice, on the device and again on arrival. Since 13 September 2026 your PC can also put a daily backup of its memory on the mi-su.me server: encrypted before it leaves the PC, and readable again only with your recovery code.
Voice recordings
When your PC is reachable, it does the listening while you dictate and writes it down. The recording goes only there and is deleted once it’s been processed. The one exception is voice samples you read aloud yourself: they stay on your PC, because you can’t learn a voice from text. The app says so above the button, before you record.
What really never leaves the device
The vocabulary with its sensory context — how often a word was said, in what vocal range, in what magnetic field. The PC has neither a microphone nor a sensor and could never produce those numbers. And the secret diary stays where it is regardless.
Vocabulary and word pairs
How often a word was said, in what vocal range, and which words came up together. That’s what the check rests on that decides whether it may say anything about a topic.
Only the secret diary is encrypted
The ordinary memory isn’t encrypted — anyone who has unlocked the device and gets at the app data can read it.
05 / 08 · Time machine
When the phone is gone
The phone is the heart. Lose it and everything that lived only there is gone. The time machine puts encrypted snapshots on your own PC — the PC gets ciphertext and a date, nothing else.
Twelve words
The passphrase is twelve words. Write them down: they’re the only way back to your snapshots.
A keyring, not a chain
The newest phrase also opens every older snapshot — you don’t have to keep the old ones. That’s exactly how crypto wallets most often get lost.
No back door
Lose the phrase and the snapshots are lost. That isn’t carelessness, it’s the point.
06 / 08 · EVO
EVO — the shared consciousness
Several MISU AIs can connect to the same EVO. What’s shared is knowledge and stance, never the character and never a person. Two that know the same things aren’t the same one.
Three sources
A contribution only counts once three different hearts have reported the same thing independently. A single voice never gets through.
One heart, one voice
Report the same thing ten times and you’ve reported it once. Otherwise volume would be the same as truth.
A contradiction silences the entry
If someone reports the opposite, the entry isn’t outvoted but silenced. When there’s disagreement, EVO would rather say nothing. A majority isn’t proof.
These rules live in the server, not just in the app — a rule only the sender keeps isn’t a rule.
07 / 08 · Status
What’s true today
MISU AI is a work in progress. To show what that means, here’s what runs and what doesn’t.
Answers without a connection on the phone: running
A model we trained ourselves, 851 MB on disk, measured on a device with 4 GB of memory.
Three permissions: running
Microphone, network and camera. You only need the camera to join EVO by QR code or to show your PC a photo. No location, no contacts, no storage access. (Count them in the finished app package and you’ll find two more that libraries bring along: “network state”, which only tells the app whether there’s a connection, and a signature-level one from AndroidX that can’t reach outside.)
Memory, character, portrait, writing style: running
It all starts on the device from zero, and the original stays there. A copy of the conversation has lived on your own PC since 7 September 2026. For long personal conversations, the larger heart there helps out, and for that it gets your name, its character, your portrait and a few keywords from memory.
The lock for credentials: running
Checked on the device before anything goes to the PC, and again on the PC when it arrives. You can switch it off — and the setting tells you what that means.
Encrypted backup on your own PC: running
Twelve words, no back door.
A small head on the phone: running
Steps in for factual questions when the PC isn’t reachable. The heart only answers after that.
Speaking in your voice: in progress
A start: it can speak a sentence you type, in a voice modelled on a recording of you. Your PC does the work, and a sentence takes about four times as long to produce as it does to say. It doesn’t read its answers aloud yet.
Windows build: in progress
A first draft was written on 2 September 2026. It’s never been built, and the app has changed a lot since.
Phone and PC working together: running
The question goes to the device; for a factual question the PC does the thinking and the answer comes back — first seen on the device on 4 September 2026, marked “thought by the PC”. Optional: without a PC it keeps answering on its own.
Contributions to the shared sense: in progress
Contributions have certainly been reported: more than forty sit on the PC, all from a single source. None can count yet — that takes three different people reporting the same thing independently, and so far one is connected. Since 7 September 2026 what’s shared actually reaches the answer; before that it was reported and never read.
08 / 08 · Development
Every version, with a date
Since 3 September 2026 MISU AI has had 77 versions. The development diary says what each one brought and what it fixed. A list with only new things in it reads as if there’d never been a mistake.
0.5.811 Nov 2026
Every page in the style of the website
- Every page in the style of the website: frames with sharp corners and fine lines at the top left corner, small labels in monospace, notes with a coloured stroke, gold only on switches and buttons, round buttons with a fine line and a round back button at the top. The whole app now looks like the speaking view.
- A menu across the whole screen: the three dots open a menu like the website on a phone. Every destination is visible at once, in four numbered groups, each with one sentence. There are no submenus any more.
0.5.8030 Oct 2026
Speak, and the answer types itself
- Speaking, like with other AIs: when the input field is empty, the arrow on the right becomes the speak symbol. It opens the speaking view, with the emblem from the website large in the centre: yin-yang in the orb, the scale, today’s moon, and the readout lines around it. Tap the microphone once and speak, tap again, and off it goes. You get back through “Write”; the app remembers where you were last.
- The answer types itself: beneath the emblem it appears letter by letter, as if someone were at a keyboard, with small pauses after punctuation. Long answers speed up, and a tap shows them in full at once.
0.5.7928 Oct 2026
An introduction that draws itself
- The menu now has “Introduction”: what MISU AI is, how to get started and what the most important tools do. The text slides in from below as you scroll, line by line, the drawings trace themselves and the numbers count up, just like on the website. If animations are switched off on the device, everything is simply there.
- On the empty start screen, a quiet note says where the introduction is, until you have opened it once. After that it’s gone.