“Model Now Open,” published in Models, 306090 Books Volume 10, examines the architectural and cultural role of the model home, tracing its shift from experimental prototype to marketing instrument. The text situates contemporary subdivision and condominium models within a longer lineage that includes exhibition houses, the Weissenhofsiedlung, the Case Study House Program, and midcentury demonstrations like the Monsanto House of the Future. While earlier models tested new materials, technologies, and ways of living in response to social and political change, today’s models largely function as tools of speculation, selling a prepackaged lifestyle detached from site, construction, or long-term performance. Interiors become the primary vehicle of persuasion, standing in for architecture itself. We argue that current model homes no longer ask what housing could be, but instead reinforce what is already assumed, and call for a new model home defined not by style or branding, but by performance: adaptable systems, environmental metrics, and frameworks that allow varied ways of living in response to contemporary pressures, particularly climate change.