ChangeGraph is an AI-native assistant that turns messy RFIs, emails, BIM models, and field photos into a single, versioned change-order graph for large GCs. PMs and project engineers on $50M+ jobs struggle to reconcile scope creep across drawings, specs, and site conditions, leading to missed COs and margin erosion. ChangeGraph ingests design revisions (Revit/IFC/PDF), daily reports, and subcontractor quotes, then auto-detects deltas, proposes COs, and tags each with responsible party, contract clause, and cost/time impact. It integrates directly with Procore, Autodesk Construction Cloud, and CMiC to push structured COs and keep logs audit-ready. - Auto-diff plans, specs, and RFIs to surface hidden change events in real time. - CO drafting co-pilot that generates scope language, breakdowns, and justification paragraphs tied to contract sections. - Responsibility engine that predicts owner vs GC vs sub exposure based on past projects and claim outcomes. - Portfolio view for ops and finance to see margin at risk from pending/unpriced changes across all active projects.