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Head-to-head · 3D CAD Software

Siemens NX vs Autodesk Inventor

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Siemens NX #1 in 3D CAD Software 9.4/10 Pricing on request · 30-day trial Free trial✓ 4 of 4 features Visit Siemens NX
Autodesk Inventor #6 in 3D CAD Software 9.0/10 30-day trial Free trial✓ 4 of 4 features Visit site

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
Pros
  • 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
  • Supports parametric, direct, freeform, and rules-based modeling
  • Covers assemblies, sheet metal, surfaces, drawings, and MBD
  • Connects with AutoCAD, Revit, and Autodesk Platform Services
Cons
  • 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
  • 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
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 →
  1. Siemens NX3D CAD Software 9.4Pricing on request · 30-day trial
  2. Autodesk Inventor3D CAD Software 9.030-day trial

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 →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update