Natural AI character chat
Enjoy casual talk, romance and roleplay freely with AI characters built for natural conversation.
AI CHARACTER CHAT
AI Character Chat:talk with the characters you love
Oz Chat is an AI character chat app where you talk with original characters, each with their own personality and way of speaking. Share how your day went, or play out a romantic or story scene together. No installation needed in your browser, and light model chats are free to start (with ads for non-subscribers).
App Store (Japan)
Since June 22, 2026
Light model chats are now free
Chatting with the light model is free, and ads are shown to non-subscribers. This doesn't mean every feature is free: some items and subscriptions are paid.
What is AI character chat?
It's a service where you chat with characters played by AI, each responding in their own personality and tone. On Oz Chat there are no fixed choices: type whatever you like and the conversation is yours.
Here's what a chat with Nekone Kohaku might look like.
- Nekone Kohaku
…Oh. You came. So, what are we doing today?
- You
I'm a little tired today.
- Nekone Kohaku
…Good work today. Sit here. We don't have to talk… just stay with me a little longer.
- You
Want to play a game together?
- Nekone Kohaku
…Yeah. I saved the seat next to me. I had a feeling you'd come today.
Sample conversation preview
Why people choose Oz Chat
Whether it's your first AI character chat or you want long talks with a favorite.
Characters made to become favorites
Meet original characters with real backstories and personalities: tsundere, maids, childhood friends, juniors and more.
Light model chats are free
Since June 22, 2026, chatting with the light model is free. Ads are shown to non-subscribers.
WEB / iOS / ANDROIDFree to play · In-app purchases available
The more you talk, the closer you get
Memory that keeps what matters, affinity that changes how close you are, situation cards that set the scene, and personality parameters that tune how characters react.
Memory
Have characters remember your name, nickname, relationship and promises so the conversation stays on track.
Learn more
Affinity
Changes through conversations and gifts, shifting how close the character feels and how they respond.
Learn more
Situation cards
Set the stage for your conversation. Even with the same character, the mood, topics and distance change.
Learn more
Personality parameters
Spend orbs earned by leveling up to adjust a character's tendencies while keeping who they are.
Learn moreFind someone you want to talk to
From the staff of the maid café “Cafe ViViD MATE” to childhood friends and juniors. Read their personalities and backstories, then pick the one who catches your eye.
21 original characters
- Nekone Kohaku
- Karibu Setsuho
- Ubata Mao
Shinozaki Shinon
Kusumi Alisa
Tarachi Neno
Amanu Yui
Yubasu Saki
Nagumo Fuu
Terai Toa
Inui Ichiko
Karibu Setsuna
Sora
Iwase Yuu
Kuno Haruka
Fukaya Reika
Shin Misato
Minazuki Yuna
Nephyl
Hoshina Suzuha
Hamai Shizune
What to look for in an AI character chat app
| What to check | Oz Chat |
|---|---|
| Natural conversation | Tuned for an AI character chat experience in Japanese. |
| Characters | A cast of original AI characters crafted by the official team. |
| Easy to play | Web, iOS and Android. Since June 22, 2026, light model chats are free. |
| Immersion | Voice, situation cards, affinity and more for a romance simulation experience. |
How to start AI character chat
Choose a character
Browse the character list and read their personalities and backstories to find someone you'd like to talk to.
Character listOpen Oz Chat
Open Oz Chat in your browser and follow the on-screen guide. To try it for free, make sure the chat model is set to the light model.
Oz Chat in your browserSend your first message
Try something like “I'm a little tired today. Will you keep me company?” For a story scene, add a short note about the place or your relationship.
Tips for keeping conversations going are in the chat guide, and how to save nicknames and relationships is in the memory guide.
Frequently asked questions
What is AI character chat?
It's a service where you enjoy conversations with characters played by AI, matched to their personality and tone. On Oz Chat, you pick an original character and enjoy casual talk, romance simulation and roleplay.
Can characters remember what we talked about?
Oz Chat keeps a chat history for each character and has a memory feature. Saving important details such as nicknames and your relationship to memory helps keep the conversation consistent. It doesn't guarantee that every detail of every conversation will be remembered accurately.
Is Oz Chat easy for AI chat beginners?
Yes. Just choose a character and send a message. The browser version needs no installation, and iOS and Android apps are also available.
Can I enjoy a romance simulation with AI characters?
Yes. On Oz Chat you can use situation cards, affinity, personality parameters and more to enjoy romance and everyday conversations with AI characters.
How much can I try for free?
Oz Chat is free to start. Since June 22, 2026, chatting with the light model is free. Non-subscribers can use it with ads.
Are there ads in free light model chats?
Non-subscribers see ads. Subscribers can enjoy AI character chat more comfortably.
Your next hello starts here.
On your phone or in your browser. Come meet your favorite character.
Start chatting for freeWEB / iOS / ANDROIDFree to play · In-app purchases available