The systems, and how they were built.
Two write-ups so far. Each one covers the actual architecture — constraints, decisions, tradeoffs, and what we’d change. Not a screenshot and a paragraph.
WarmChats
Always-first AI follow-up for real estate agents: Claude qualifies and routes every new lead, GPT-4.1 replies on email and SMS, and bookings write straight to the calendar.
- <60sFirst reply to every inbound leadtarget
ClaudeGPT-4.1MicroservicesIntelligent restaurant search
Conversational discovery with explicit routing, predictable AI unit economics, and latency targets suitable for high-volume production traffic.
- <100msSearch response, 80% of trafficshipped
- ~$0.001Average cost per AI queryshipped
- ~90%Of AI calls routed to Haiku, not a frontier modelshipped
NestJSPostGISpgvectorRedis
