Head-to-head · 3D CAD Software
Siemens NX vs Autodesk Inventor
Siemens NX leads on 0 checks, Autodesk Inventor on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreSiemens NX · 9.4/10
- Free trialboth
Siemens NX scores higher on our rubric for 3d cad software: 9.4 against 9.0 out of 10; our editors rank them #1 and #6.
Siemens NX is the better fit for large industrial engineering organizations. Autodesk Inventor is the better fit for windows-based mechanical engineering teams.
- Siemens NX fits best
Large industrial engineering organizations
- Autodesk Inventor fits best
Windows-based mechanical engineering teams
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Side by side
| Feature | Siemens NX 9.4/10 Visit ↗ | Autodesk Inventor 9.0/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.4 | 9.0 |
| Ranking | #1 in 3D CAD Software | #6 in 3D CAD Software |
| Best for | Large industrial engineering organizations | Windows-based mechanical engineering teams |
| Pricing model | Paid | Paid |
| Starting price | Pricing on request · 30-day trial | 30-day trial |
| Free plan | — | — |
| Free trial | 30 days | 30 days |
| Free trial length | 30 days | 30 days |
| Deployment | Cloud, Self-hosted | Desktop, Cloud |
| Platforms | Windows, Web | Windows |
| Integrations | 1 integrations | 4 integrations |
| Built for | Small business, Mid-market, Enterprise | Small business, Mid-market, Enterprise |
| Features Siemens NX 4/4 · Autodesk Inventor 4/4 | ||
| Assembly design | ✓ | ✓ |
| Sheet-metal tools | ✓ | ✓ |
| Surface modeling | ✓ | ✓ |
| Cloud collaboration | ✓ | ✓ |
| Specs | ||
| Modeling method | Hybrid | Hybrid |
| Supported platforms | Windows desktop; NX X Design is cloud SaaS and supports browser-based access | Windows |
| File import and export | IGES, STEP AP203, STEP AP214, DXF/DWG, STL, 3MF; NX X data exchange also lists JT, Solid Edge and SolidWorks open | Import: Autodesk states Inventor supports opening non-native CAD data. Export formats documented for parts include DWG, DWF/DWFx, IGES, JT, OBJ, RFA, SAT, STEP, STL, CATIA V5, Parasolid, and Pro/ENGINEER; assemblies additionally include RVT. Drawing formats include DWG, IDW, DWF/DWFx, and DXF. Format support varies by data type and version. |
| Our review | ||
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| Cons |
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| Our verdict | Siemens NX is 3D CAD software for mechanical product development, with tools for feature-based parametric modeling, synchronous direct modeling, assemblies, sheet metal, freeform surfaces, drafting, and product validation. It is aimed at… Read the review → |
Autodesk Inventor is 3D CAD software for mechanical designers and engineers working on machine design, assemblies, sheet metal, frames, tube and pipe, cable and harness systems, simulation, rendering, and documentation. Its modeling… Read the review → |
Strengths and trade-offs
Siemens NX — where it wins
- Combines parametric, synchronous, assembly, sheet-metal, and surface modeling
- Supports Teamcenter, Siemens Xcelerator, and Live Share collaboration
- Runs across web, Windows, and Linux with broad CAD translation support
Where it doesn't
- Paid product with no free plan
- Feature depth may exceed the needs of smaller design teams
- AI capabilities are limited to higher-tier or add-on offerings
Autodesk Inventor — where it wins
- Supports parametric, direct, freeform, and rules-based modeling
- Covers assemblies, sheet metal, surfaces, drawings, and MBD
- Connects with AutoCAD, Revit, and Autodesk Platform Services
Where it doesn't
- Runs as Windows desktop software rather than a cross-platform CAD tool
- Requires a paid subscription and has no free plan
- Its broad scope may exceed the needs of narrowly focused CAD teams
- Siemens NX9.4/10 · Pricing on request · 30-day trial
Deep hybrid CAD with Teamcenter integration for large engineering organizations.
Visit Siemens NXFull verdict → - Autodesk Inventor9.0/10 · 30-day trial
A broad Windows CAD system for mechanical design, assemblies, documentation, and automation.
Visit siteFull verdict →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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