BIM Model Intelligence
Nomic brings your IFC models into the same platform as your documents and drawings. Upload or sync a BIM model and immediately view it in 3D, browse its element hierarchy, query it with Assistant, and get clickable element citations — all without leaving Nomic.
Key Use Cases
Model Exploration & QA
Open an IFC model in the built-in viewer and explore it across three tabs:
Model — Orbit and pan the 3D scene, select elements in the viewport or the tree.
Elements — Browse the model hierarchy, inspect element metadata and property sets.
Data — Review extracted tables: elements, properties, levels, spaces, relationships, materials, and geometry.
Use the viewer for visual spot-checks, clash walkthroughs, and quick property audits before handing off to specialists.
Natural-Language Model Queries
Attach an IFC model to an Assistant conversation — or include it through a project — and ask questions in plain language:
- “List the largest element categories in this model.”
“Find walls with a fire rating property and summarize the values.”
“Show all doors on Level 3 that lack an accessibility property.”
Assistant queries model elements, properties, materials, levels, and geometry, then returns answers with clickable element citations. Click a citation to jump to the cited element in the viewer with its geometry highlighted and property panel open.
Version Comparison & Cross-Discipline Coordination
Assistant can query up to four BIM models at once, which unlocks:
Version diff — “Compare these two model versions and show elements present in one but not the other.”
Cross-discipline checks — “Find possible duct and structural beam clearance conflicts.”
Coordination checks use axis-aligned bounding boxes and assume shared coordinates and compatible units between models. Treat results as candidates — always verify in the viewer and your authoring tools before using them for professional review or construction decisions.
Supported Formats
| Format | Extension | Max Size |
|---|---|---|
| IFC | .ifc | 200 MB |
| IFCZIP | .ifczip | 25 MB |
Supported IFC schemas: IFC2X3, IFC4, IFC4X1, IFC4X2, IFC4X3.
If you work in Revit, export the model to IFC before uploading. Native Revit files are recognized as BIM files, but the viewer and Assistant BIM tools currently require an IFC export.
Supported Context
Autodesk Forma Integration
Sync IFC models from Autodesk Forma projects
Bentley Integration
Sync IFC models from Bentley ProjectWise projects
SharePoint Integration
Tag IFC models in SharePoint for Nomic access
Egnyte Integration
Tag IFC models in Egnyte for Nomic access
Direct Upload
Upload IFC or IFCZIP files directly to Nomic
How Preparation Works
BIM models do not follow the normal Parse and Embed indexing pipeline. Instead, Nomic prepares derived model artifacts the first time you open or query a model, then caches them for that file version. For IFC files the 3D view can start loading while element and table data finish preparing. When a new version is uploaded or synced, the cache is rebuilt on next access.