<p>Over-buying usually comes from takeoffs that go stale the moment the design moves. Tie your material counts to the live model instead of a spreadsheet from last week, and you order to what the project actually needs.</p> <p>Here is how does ai estimate construction costs from revit models inside BidLight: you export your Revit model, two AI models read the geometry and metadata, classify your BOQ line items, and pull current pricing from a large cost database plus Craftsman, 1Build, and RSMeans. You get material, labor, equipment, and time costs in minutes.</p> <p>To stop buying material you will never use:</p> <ol><li>Export your Revit model into BidLight instead of counting by hand.</li><li>Let the AI classify line items so quantities come straight from the model, not a guess.</li><li>Review the material breakdown against the priced BOQ.</li><li>When the design changes, watch the numbers update in real time so your counts never drift.</li><li>Order from the current quantities, not an old revision.</li></ol> <p>The headache is chasing scattered updates and redoing takeoffs every time someone moves a wall. When the count follows the model, you order what the drawing says today, and the waste from stale quantities goes away.</p> <p>Classification runs at 86% accuracy, so treat the output as a strong starting point and confirm the high-value line items before you place the order. Accurate quantities also mean numbers you can defend when a client asks why the order looks the way it does.</p>