PlanGPT
PlanGPT is a domain-specialized LLM framework for urban and spatial planning, built in collaboration with the Chinese Academy of Urban Planning.
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Domain fine-tuning: Continually fine-tunes a base LLM on a curated corpus of planning documents to lift performance on planning-specific language and terminology.
Custom local retrieval: Pairs the model with a local-database retrieval framework so that answers can cite authoritative sources instead of relying purely on parametric memory.
Advanced tooling: Integrates domain-specific tools (document templates, code execution, GIS-style utilities) to cover the end-to-end planning workflow rather than just QA.
Generalizable recipe: Although built for urban planning, the paper doubles as a practical template for any domain-specific LLM project - covering retrieval, fine-tuning, and tooling together.