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 with authored area and volume values, 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.”
“Calculate total room floor area and volume by level.”
Assistant queries model elements, properties, materials, levels, and rooms/spaces, 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.
For room and area-program questions, Nomic uses authored IFC space quantities such as NetFloorArea and NetVolume, or common Area and Volume aliases when those are the values in the export. Mesh surface area is not treated as room floor area.
Version Comparison & Cross-Discipline Coordination
Assistant can query up to ten 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
Attach synced SharePoint BIM folders to project context
Egnyte Integration
Attach synced Egnyte BIM folders to project context
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 when you open a model, attach it to Assistant or workflow context, or ask Assistant to query it, then caches them for that file version. For IFC files, Nomic prioritizes queryable model metadata first so Assistant can answer element and property questions as soon as that data is ready; geometry for the 3D view and spatial checks may continue preparing in the background. When a new version is uploaded or synced, the cache is rebuilt on next access.