Show HN: I built an AI that forgets things when people leave the room
TL;DR
My girlfriend and I had a fight. We both hopped on our shared Claude account to vent, without telling each other. Eventually, she noticed that chat, joined it, and started grilling me. I got bizarre responses from Claude telling me to calm down. After realizing the chat had been renamed "Why Michael is an inconsiderate asshole", I refreshed, realized Claude wasn't built with multi-session websockets in mind, and told it there were two of us. After that, seeing both sides in one conversation, it naturally started mediating. Nobody asked it to. It identified the correct speaker, read the room, and responded to what the moment needed. We looked for "group chat with AI" and it didn't exist. Everything was 1:1 assistant mode. So we started building it. An AI that sits in your group chat as a participant, not a bot you @ to ask things. It has opinions. It decides when to talk and when to shut.
Nauti's Take
The underlying insight is solid — group dynamics genuinely require different AI behavior than one-on-one chat, and a tool that reads the room naturally fills a real gap. The challenge is trust: for a group chat AI to work, everyone in the conversation needs to consent and feel comfortable.
Fun for social settings, but sensitive for professional or personal contexts where boundaries matter.
Summary
My girlfriend and I had a fight. We both hopped on our shared Claude account to vent, without telling each other.
Eventually, she noticed that chat, joined it, and started grilling me. I got bizarre responses from Claude telling me to calm down.
After realizing the chat had been renamed "Why Michael is an inconsiderate asshole", I refreshed, realized Claude wasn't built with multi-session websockets in mind, and told it there were two of us. After that, seeing both sides in one conversation, it naturally started mediating.
Nobody asked it to. It identified the correct speaker, read the room, and responded to what the moment needed.
We looked for "group chat with AI" and it didn't exist. Everything was 1:1 assistant mode.
So we started building it. An AI that sits in your group chat as a participant, not a bot you @ to ask things.
It has opinions. It decides when to talk and when to shut
Sources