If generative AI solves online problems, we solve offline problems. While the AI competition is unfolding around Large Language Models (LLMs), the residential platform company Trustay is looking in a slightly different direction. Instead of focusing on search, document creation, and content generation, the goal is to enable AI to understand and operate the actual living spaces themselves. Trustay delivered a presentation on the theme of "Paradigm Shift in AI-Based Smart Housing Services" at the 3rd Korea Proptech Forum Media Hub event, held on the 10th at Yanolja Square in MDM Tower, Gangnam-gu, Seoul. During the presentation, CTO Lim Tae-min introduced the strategies for the housing platform "Knock" and the proprietary AI brand "Nocki AI," explaining that an era is dawning where AI learns about apartments and cities. “Offline AI, Not Online AI”… Housing Data Focused on by Trustay CTO Lim emphasized 'offline data' throughout the presentation. He stated, "Currently, most AI services focus on solving problems that occur in the online space," adding, "However, the place where people actually spend their time and live is the offline space, and there are countless problems within it that need to be solved as well." The residential platform operated by Trustay is not merely a community app. The entire operation of an apartment complex—from management fee payments and facility reservations to visitor vehicle registration, access control, community management, and complaint handling, as well as lifestyle convenience services—is integrated within a single platform. The company views the data generated during this process as a new AI asset. It explains that residents' lifestyle patterns, facility usage history, management regulations, announcements, complaint data, and building operation information all serve as AI training resources. "Unlike the online data held by Big Tech, data generated in residential spaces is a combination of space, people, and facilities," said