Are there good examples of multiplayer ai?

Ie I write a design doc in Chat/Gemini and I interrogate it and have an interesting discussion and consideration in trade-offs and then I essentially cut and paste it to the team or at best share a link to the chat but I have no way for them to join the chat and collaborate with the AI and me.

Co-founder, Scout Game. 
https://scoutgame.xyz

In v0 there's a concept of forking a chat/build. But currently you can't multiplayer on the same chat from what I've found.