City governance has entered the "AI-native" era. On December 24, the Shanghai Planning and Natural Resources Bureau jointly launched with SenseTime's "Big Facility," officially releasing the first foundational large model in the national planning and resources sector - the "Yunyu Starry Sky Large Model (Professional Edition)." With 600 billion parameters, this model integrates remote sensing images, 3D real scenes, planning drawings, and government documents, creating a true "AI Urban Planner" that understands business, makes decisions, and executes tasks, filling an industry gap and promoting the scientific, refined, and intelligent transformation of megacity governance.

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The "1+6" model system builds an urban intelligence ecosystem

"Yunyu Starry Sky" adopts an architecture of "1 industry foundation large model + 6 vertical intelligent agents," covering ten core scenarios across three major fields: planning and resources, government governance, and social co-creation. Relying on the country's first dedicated corpus for planning and resources - the "Kunyu Jinglue Corpus," the training data includes over 900 planning documents, 10,000+ basic Q&As, and 1,000+ experts, ensuring professional depth and dynamic updating capabilities.

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Five core capabilities reshape the planning workflow

1. "Unstoppable questions":

    Built-in ten knowledge modules including Shanghai's overall plan, 15-minute community life circle, and industrial land use. By June next year, it will build a knowledge graph covering over 60 professions, providing round-the-clock decision-making consultation.

2. "Can adjust maps":  

    Say goodbye to complex GIS operations! Users just need to say "display the planning map, real photo, and public service facilities of a certain plot in Xuhui Riverside," and the system will automatically aggregate multiple sources of layers and respond in seconds.

3. "Can count":  

    Directly connected to the planning and resources business database, it supports natural language queries such as "the land transfer area of residential land in Pudong New Area in 2025," and automatically generates visual analysis with "map-data linkage" to assist in accurate decision-making.

4. "Can recognize images":  

    Integrated with SenseTime's daily new multimodal large model, it can parse elements in planning drawings such as building outlines, floor area ratio annotations, and green space ratios, automatically compare current and planned differences, and improve compliance review efficiency by more than 50%.

5. "Can write reports":  

    Based on chain-of-thought and business logic, it automatically generates technical reports compliant with regulations like the "Urban and Rural Planning Compilation Measures," from data to conclusions seamlessly.

Multimodal + intelligent scheduling, building the city's "nervous system"

Different from general chatbots, "Yunyu Starry Sky" has its own task scheduling engine, which can coordinate spatiotemporal intelligent base plates, vertical models, and multiple intelligent agents to complete complex closed-loop tasks such as "identifying illegal constructions → retrieving ownership → generating disposal suggestions → pushing to law enforcement departments." Its capabilities have been tested in multiple district-level planning projects in Shanghai, with the efficiency of drawing reviews increasing threefold, and the response time for planning consultation shortened from "day level" to "minute level."

AIbase believes that the release of "Yunyu Starry Sky" marks the deep evolution of AI from a "general assistant" to a "vertical domain expert." When every inch of a city's land, each map, and each policy can be understood, associated, and reasoned by AI, smart cities truly gain "thinking ability." This "spatial intelligence revolution" initiated by Shanghai may provide a Chinese model for the governance of global megacities.