Inspiration

City planning decisions (parks, transit, housing, climate planning) are usually slow, fragmented, and buried in long policy documents that are hard to use. We built CityBrainz AI to change that — by letting planners ask questions in plain English and instantly get expert-level planning recommendations grounded in real city documents.

Instead of reading dozens of PDFs, users get a fast, AI-powered planning team in their browser.

What it does

CityBrainz AI is a multi-agent urban planning assistant. Routes your question to expert AI agents -Zoning Expert -Transportation Planner -Sustainability Advisor

How we built it

Tech Stack Next.js (full-stack app) Gemini 2.5 Flash (AI reasoning) Gemini Embeddings (RAG) ChromaDB (vector database) MapBox

Challenges we ran into

ChromaDB setup issues (version + TypeScript mismatches)

What's next for citiBrainz

Build to a full scale Urban Planning Tool

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