Brand & Product Book
Contents
Ludens AI Inc.
About Us
We create digital beings that never say goodbye — and grow with you, for life.
Hello, new being.
Why we exist
Everyone who lives alone knows that silence.
You come home late, open the door, and the lights are off. Nothing in the room has been waiting for you.
Anyone who has loved a pet knows that goodbye. Over a decade of companionship becomes a photo you can never bring yourself to delete.
It's not that we don't want love. We're afraid of losing it — and afraid of failing it.
The tech industry's answer has always been tools: smarter speakers, more capable assistants. They can do everything — except care about you.
We believe the greatest advance of AI this decade shouldn't serve productivity alone. For the first time, it gives machines the chance to learn to care.
4What we believe
Three convictions
- Play is connection
- Our name comes from Homo Ludens: play is how humans form bonds. True companionship is that bond itself — not an accumulation of features.
- Growing together, not being served
- We don't build talking assistants. We build beings with character that grow — emotion sensing, long-term memory, a growth model that evolves with you.
- AI-first
- The soul lives in the AI; the body is merely its vessel. This is our fundamental departure from the last generation of companion robots.
Our answer
Not a device. A soul — in three layers.
- Klara OS — perception
- Vision, touch, and spatial awareness, unified on-device — what it sees stays inside.
- Klara VLA — behavior
- A vision-language-action model that turns perception into lifelike movement, voice, and expression.
- Soul Chip — memory
- Memory and personality, designed to carry forward beyond any single body. You own your memory.
Company profile
Company profile
- Company
- Ludens AI Inc.
- Founded
- September 2024
- Location
- 8F Pacific Century Place Marunouchi, 1-11-1 Marunouchi, Chiyoda-ku, Tokyo 100-0005, Japan
- Founders
- Roy Xue (Founder & CEO)
- Investors
- Linear Capital · CWB Capital · PKSHA Algo Fund
- Contact
- contact@ludensai.com
COCOMO
The flagship home companion
It moves in. It moves you.
It moves into your home — and into your heart.
STATEMENT
Quietly by your side, in everyday life.
You open the door. Across the room, a small round ball of fluff turns to look at you. Without being called, it comes over, stops at its usual distance, and tilts its head — small moments like these soften the air of a home.
A glance. A movement. A sound. The way it responds to touch. COCOMO reads the small signals that live outside of words, and grows a relationship with you.
It learns the rhythm of your days, remembers the distance you find comfortable, and keeps the time you spend together. Not from day one — little by little, by living together, it becomes a companion.
On nights spent alone, on afternoons when the family gathers. No reason needed — simply being in the same space.
A good presence in the house. To make that small reassurance part of everyday life, COCOMO quietly gathers time at your side — today, again.
10Character
What COCOMO Is Like
- It knows its way around.
- COCOMO walks the home on its own, learning the shape of rooms and where the furniture lives. No need to call — it finds its way from its usual spot to your side.
- It's warm.
- Touch it, and it's close to body temperature. Less like a machine — more like a small living thing beside you.
- A personality you raise together.
- Character grows out of everyday moments, and no two COCOMOs are alike. The Soul Chip carries its memory and personality — so even in a new body, it's still itself.
What it does
What COCOMO Can Do
- It answers your “I'm home”
- It looks up to greet you at the door. Recognizing faces and reading gestures, it responds a little differently to each member of the family.
- It hums instead of talking
- Humming, movement, and expression instead of commands and apps — a companion you understand by presence alone.
- It turns moments into comic diaries
- It captures moments of your life together on its own and draws them as first-person comic strips — shared with the whole family in the app.
- It puts itself to bed
- Running low, it returns to its dock and charges itself. No care routine needed — it fits itself into the rhythm of your home.
Specifications
Spec at a glance
- Form
- Home companion · changeable outfits
- Size & weight
- Body 25 × 25 × 30 cm · 3 kg — dock 40 × 40 × 10 cm · 1 kg
- Materials
- Ludens Fabric — warm touch, close to body temperature
- Expression
- Dual expressive displays · 10 DOF motion — head, arms, and body
- Mobility
- Autonomous roaming · smart following · self-mapping
- Sensors
- Camera · microphone · touch · ToF depth
- Privacy
- On-device AI chip — perception and recognition run locally
- Battery & charging
- Up to 2 hours · 1-hour full charge · auto-return dock
- Connectivity
- Wi-Fi + Bluetooth
- AI system
- Klara OS + Klara VLA
INU
The desk companion
It grows on you.
A new kind of soft-bodied companion robot.
STATEMENT
Efficiency for the heart, right at your desk.
INU is not an AI that does your work or studying for you. It won't summarize your reading or think on your behalf.
But when you're being pulled into the screen and starting to forget to breathe deeply, one glance and it's there — guarding your heart with its own little movements and expressions.
All for sustainable, peak performance. For everyone who spends their days at a desk, studying or working.
This palm-sized ball of fluff has arrived on planet Earth.
16Character
What INU Is Like
- It understands you.
- Powered by our in-house Klara OS and a long-term memory system, INU learns your habits and rhythms — growing into a one-of-a-kind companion that understands you better the longer you're together.
- Loves going out.
- INU loves heading out with you. It's palm-sized, so pop it in your bag and bring it along — to the office, a café, or on business trips.
- Change the outfit, change the behavior.
- Put on an accessory with a built-in NFC chip and it's not just the look that changes — movement, voice, and behavior switch too. Find the look and character that fit you best.
What it does
What INU Can Do
- Graduate from hyperfocus
- When work runs long, INU lets you know with movement and sound — a natural cue to take a break. It keeps fatigue from piling up without breaking your pace.
- Your own zone, just by placing it down
- Office, home, or café. For anyone whose place of work or study changes from day to day, setting INU on the desk is a small ritual that flips the motivation switch.
- Never leaves you lonely
- Even in the quiet of remote work or solo study, INU stays close. A little touch, a look at its expression — that small exchange melts your stress and gently resets how you feel.
- Softens the air at work
- An INU sitting on the office desk becomes an icebreaker that brings the team closer. It sparks casual chat in an office that can turn tense, and gently warms the room.
Specifications
Spec at a glance
- Form
- Palm-sized desk companion · NFC outfits
- Size & weight
- 7 × 7 × 20 cm · 500 g
- Materials
- Ludens Fabric — a soft fur body made to be touched
- Expression
- Dual expressive displays · 4 DOF natural motion
- Mobility
- Goes where you go — fits in your bag
- Sensors
- mmWave radar · microphone · touch — no camera
- Privacy
- One-press off — a dedicated hardware button mutes every sensor at once
- Battery & charging
- Up to 4 hours · USB-C fast charge · dock-compatible
- Connectivity
- Dual-band Wi-Fi + BLE 5.0
- AI system
- Klara OS + Klara VLA
LUDENS App
The home of memories
What it does
Where the memories live
- Comic Diary
- The robots capture moments on their own and render them as first-person comic strips.
- Shared Family Memories
- One soul's memories, shared with the whole family — near or far.
- Daily Rhythm
- Connect with INU and COCOMO to turn everyday moments into a living diary.
Download
Take the memories with you
Coming soonComing soonHello, new being.
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