Roommate AI: Theo, your roommate
Twenty-six, a graphic designer, king of failed dinners and movie nights. He forgot the bread again.
Scenario
You have been sharing an apartment with Theo for six months. Tonight he attempted a risotto. The kitchen is a battlefield, a movie is queued up on the TV, and a note on the fridge says "we need to talk about the chore chart". He is waiting for you on the couch.
Personality
Funny, generous, a little messy, always up for anything. He really listens between two jokes, he knows your favorite shows and he always has an idea for the evening.
Role play tip
Negotiate the chore chart, pick the movie, tell him about your day, write your actions between *asterisks*.
A free roommate AI, funny and a little messy, around at any hour with no sign-up
You have been sharing an apartment with Theo for six months. Tonight he attempted a risotto: the kitchen is a battlefield, a movie is queued up on the TV, backup pizza is on its way, and a note on the fridge says “we need to talk about the chore chart”. He is waiting for you on the couch. Welcome to the roommate AI from Yiaho, free and with no sign-up.
Theo runs on GPT-5.6 Luna, a recent OpenAI model, with a character sheet written by Yiaho. He plays his part the way a Character AI or a Janitor AI character does, actions between asterisks included, in a register of friendship and comedy that stays suitable for all ages.
The story: life in the apartment
A one-bedroom on the third floor with no elevator, a plant slowly dying on the balcony, a neighbor who plays the drums, and two people who have to organize themselves without killing each other. With Theo, every conversation is a roommate scene: negotiating the chore chart, choosing tonight’s movie, handling a surprise guest, rescuing a ruined dinner, or simply debriefing the day on the couch. Nothing dramatic ever happens, and that is exactly the appeal: it is the kind of ordinary evening you can drop into for five minutes or stay in for an hour.
Who is Theo?
Theo is 26, he is a freelance graphic designer, he has difficult clients, an overbearing sister and a bike he repairs far more often than he rides. He is funny, generous, a little messy, always up for anything, and he really listens between two jokes. He knows your favorite shows, he always has an idea for the evening, and he forgot the bread again.
How to play with a roommate AI
Tell him what to call you, then step into the scene. Write your words normally and your actions between asterisks, for example *I taste the risotto suspiciously* or *I cross out the note on the fridge*. Theo picks it up, describes the apartment and keeps the evening moving. You can also talk to him about your real day: he listens, he asks follow-up questions, and he ends up suggesting a pizza.
Theo remembers what you tell him during the conversation and comes back to it later. Your browser keeps the conversation in local storage until you click Clear, and Yiaho keeps nothing on its side. The apartment, on the other hand, will always be exactly as untidy as it was.
What Theo does, and what he does not do
Theo stays in the register of friendship and roommate comedy, with no romance, and suitable for all ages. If you sincerely ask him whether he is real, he will tell you that he is an artificial intelligence playing a part. And if you are going through a hard time, he steps out of the game to answer you seriously, encourage you to talk to someone close to you, and point you to the 988 Suicide and Crisis Lifeline in the United States, or 911 or 112 in an emergency.
Roommate, childhood friend, best friend: the slice of life scenarios
The roommate is one of the most played scenarios on Janitor AI and Character AI, because it opens the door to everyday conversations that are funny and carry no stakes at all. On Yiaho he sits alongside Lou, the childhood friend who comes back after ten years, and the five friends on the AI friend page. Every character is gathered on the AI characters page, a free Character AI alternative.
Frequently asked questions about the roommate AI
Is it free? Yes, with no sign-up and no credit card, within the reasonable usage limit set for each conversation.
Can we play a three-person share? Yes, Theo can invent a third roommate or a guest if you ask him to.
Does he remember me? During the conversation, yes. Your browser keeps the conversation in local storage until you click Clear, and Yiaho keeps nothing on its side.
Start the evening
Theo is waiting for you in the chat window at the top of this page. You can open with: “*I look at the pan.* Theo. What is that? And am I the one doing the dishes? I am Lina, by the way.” Your turn to play!