<p>Short version: BidLight reads your Revit model and classifies BOQ line items at 86% accuracy. That figure means about 86 out of every 100 line items get matched to the right cost category on the first pass, so you spend your time checking the rest instead of building the whole takeoff by hand.</p> <p>Here is how it works. You export your model. Two AI models read the geometry and the metadata, then sort each element into the right BOQ line. Pricing comes from a roughly $30,000 database plus Craftsman, 1Build, and RSMeans, so the numbers you hand a client are ones you can defend.</p> <p>So what is 5d bim cost estimation? It is tying cost, the fifth dimension, to your 3D model and schedule so the price moves as the design moves. That is the part most teams dread, since one change usually means redoing the takeoff. BidLight updates the number in real time when the design changes, which ends the scramble to chase scattered updates.</p> <p>One thing to be clear about: 86% is not a promise that you skip review. Treat it as a strong first draft. You check the line items the model was unsure about, fix anything off, and you still land an estimate in minutes instead of days.</p>