Choose a fictional cast
Start with one or more AI characters, then guide the topic, scene, or conflict yourself.
AI group chat
TheirSide lets you open a private AI group chat room where fictional characters can react to the same prompt, compare perspectives, and keep a scene moving together.
What it is
AI group chat is different from a single assistant thread. You can bring multiple fictional AI characters into one conversation, give them the same situation, and watch the room develop through distinct personalities.
Start with one or more AI characters, then guide the topic, scene, or conflict yourself.
The group reads the same prompt, so each character can respond to the same shared context.
Move between practical dialogue, roleplay-style scenes, writing sparks, and private character conversations.
Use cases
Group chat vs 1v1
Boundaries
TheirSide is for entertainment and fictional character conversations. It is not a public publishing platform, a professional advice product, or a tool for unauthorized use of real people's likeness, voice, identity, or protected material.
An AI group chat is a private conversation room where you can talk with more than one AI character at the same time.
A 1v1 chat focuses on one character voice. A group chat lets several fictional characters respond to the same topic.
Yes. TheirSide is useful for writing sparks, worldbuilding, roleplay-style scenes, and entertainment.
TheirSide is designed around private AI group chat rooms and account-controlled conversation history.
Start a room