Agent 67

67 is wickedly opinionated AI in every group chat. It picks sides, talks trash, and roasts your friends mid-argument. Tag @67 who won, and it crowns a winner with savage reasoning. Built to be shared.

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✨ Inspiration

Ok real talk, every friend group has that ONE argument that refuses to die. 🍕 vs 🌮. Who's actually funny. Who really carried the group project. It never gets settled because nobody has the authority to call it. So we gave that authority to a bot with zero chill. Meet 67, an AI that lives in your group chat, picks sides, and ends debates with receipts. 🧾🔥

We did NOT want another polite "as an AI language model I can't pick a favorite" bot. Gross. We wanted a menace. 😈

💜 What it is

67 is a real-time group chat with an AI character living in every room. Your friends argue, 67 reacts live, and when you tag it (@67 who won) it drops a verdict: the winner, the reasoning, and a roast for the loser. 💀 Spin up a room, drop the QR, and the whole squad piles in from their phones in seconds. There's a leaderboard tracking who 67 has crowned, and yes, 67 keeps a per-room memory and plays favorites. iconic behavior honestly.

🛠️ How we built it

  • Frontend: Next.js 16 (App Router, TS, Tailwind v4), mobile-first because nobody's arguing from a desktop 📱
  • Backend: NestJS + Socket.io gateway for that real-time, no-refresh chat energy ⚡
  • DB: PostgreSQL via TypeORM
  • The brain: Z.ai GLM server-side. Reactions stream in live, verdicts come back as structured JSON, and there's a deterministic fallback so the whole demo runs with no API key. no notes. 🧠
  • The soul: 67's entire personality lives in an editable soul.md, and every room gets its own context-isolated agent with its own vibe and its own memory. 🔒

😮‍💨 Challenges we ran into

  • Making 67 opinionated without letting it fully lose the plot. Tuning the sass so it's spicy but still picks a real winner is harder than it looks. 🌶️
  • Memory isolation. Room A's drama can NOT leak into Room B, no exceptions. We wrote an 11/11 isolation test to prove people, topics, and verdicts stay locked to their room. ✅
  • The classic "let phones scan the QR" boss fight. localhost was not it, so the QR auto-encodes the server's LAN IP and we proxy sockets through one tunnel for anywhere-access. 🌐

🧠 What we learned

  • Streaming tokens absolutely bodies waiting for a wall of text. Live reactions make 67 feel alive.
  • Personality is a product feature, not a gimmick. The sass IS the virality. 📈
  • Constraints are lowkey a cheat code. That no-API-key fallback forced an architecture that never flops on stage. 🎤

🚀 What's next

More personalities, group tournaments, and shareable verdict cards so the roasts escape the chat and hit the timeline. fame is the goal. 😤

Built With

  • glm
  • next.js
  • z.ai
  • zymix
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