<p>It means exactly what it sounds like: BidLight prices the model you exported, not the model sitting on your screen right now. If your team added a wall, swapped a finish, or resized the mechanical room after you pulled numbers, your estimate is already behind.</p> <p>This is the exact problem BidLight was built to kill. Instead of a one-time takeoff that goes stale the moment someone touches the design, BidLight lives inside Revit and updates in real time as the model changes. Two AI models re-read the geometry and metadata at 86% accuracy and re-price against current data pulled from BidLight&#39;s own roughly $30,000 pricing database plus Craftsman, 1Build, and RSMeans.</p> <p>To keep your number honest:</p> <ol><li>Treat every meaningful design change as a reason to re-export, not just the final one.</li><li>Watch for the real-time update rather than assuming last week&#39;s export still holds.</li><li>Before you send a bid or a client-facing number, confirm the export timestamp matches the current model state.</li><li>If multiple people touch the model, agree on who exports and when, so nobody bids off a stale version.</li></ol> <p>The fix isn&#39;t more discipline around spreadsheets. It&#39;s a system where the estimate moves with the model instead of waiting for someone to remember to update it.</p>