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Geotechnical
Design & analysis Software

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The first FEM software for integrated 2D & 3D

OPTUM GX is the first geotechnical FEM tool on the market that allows modelling in both 2D (plane strain/axisymmetry) and 3D within the same program. Developed with one clear purpose: to save engineers’ time.

Tailored for geotechnical professionals, it offers a comprehensive suite of material models and analyses, making it ideal for geotechnical modelling, routine engineering calculations, and advanced geotechnical design.

Additionally, the built-in Python scripting development environment enables users to access specialized applications and quickly develop custom plugins.

The program also features a state-of-the-art report generation module, facilitating swift and seamless documentation of analysis results and designs.

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Designed to save you time on geotechnical tasks

Compared to G2 and G3, OPTUM GX introduces a range of powerful new analysis features. These include transient seepage analysis in both 2D and 3D, a suite of widely used soil models such as Hardening Soil with Small Strain, and several advanced models for structural elements.

Why wait? Start saving time with GX today
Download your free trial today by creating an account and discover how OPTUM GX can transform your geotechnical modeling and analysis workflow.

Already using G2 or G3?
You can access the full version of OPTUM GX directly from your account page.

2D or 3D? OPTUM GX gives you both – in one powerful FEM tool

In geotechnical engineering, choosing between 2D and 3D often means weighing speed against accuracy.
With GX, there’s no trade-off.

Work seamlessly in both 2D and 3D within one integrated FEM software. Switch views with a single click, optimise your workflow, and cut down on time and cost — without compromising on quality.

Powered by advanced finite element algorithms, GX delivers fast, accurate results — whether in 2D, 3D, or both.

One-Click 2D to 3D Conversion for Analysis in OPTUM GX

Many geotechnical problems can largely be considered 2D, but certain features make a purely 2D approximation inaccurate, for example, a pile-reinforced slope or a square foundation on a retaining wall. While the overall geometry can often be treated as 2D, these additional elements — such as pile rows and square foundations — make the problems inherently 3D.

To achieve the most accurate representation of reality and ensure reliable results, 3D modeling is essential.

With OPTUM GX, you can model the overall geometry in 2D and seamlessly extrude it into 3D, adjusting as needed. That means you save a lot of time!

Extract 2D sections from complex 3D models — instantly

And it works the other way, too.
If you’re working on a large 3D model with complex geometry, you may want to analyse specific sections in more detail, for example, to evaluate Factor of Safety.

With Optum GX, you can instantly extract 2D cross-sections and analyse them using standard plane strain methods.

This allows for fast and reliable sectional analysis — and it's an invaluable tool for quality assurance of complex 3D models.

try A SMARTER WAY TO ENGINEER WITH PYTHON-INTEGRATED GX PLUGIN

Tired of the repetitive grind of setting up geotechnical models with only minor parameter variations? We get it. Reconfiguring the same problem again and again wastes valuable time and breaks your workflow. That’s why we developed a smarter solution that transforms the way engineers handle model setup.

The OPTUM GX plugin for Python lets you automate your project setup — from geometry and materials to loads and boundary conditions — all directly from your script. No more repetitive manual input for every new iteration.

Need even more control?
GX supports custom scripting and automation, allowing advanced users to build tailored solutions, specialized workflows, or even full custom applications — all within the Optum environment.

Here’s what you can do with our GX plugin for Python:

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    Automate repetitive tasks: Quickly generate multiple project variants without rebuilding from scratch.

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    Work faster, with less errors: Streamline your workflow and reduce the risk of manual setup mistakes..

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    Accelerate iteration and optimization: Make quick modifications and rerun models with ease — perfect for parameter studies and design exploration.

“A past project required 3,000 hours to design 50 berms.
With Au2Rox™ 2.0 in auto mode, the same design was completed in just 3 hours — demonstrating a time-saving factor of 1,000 while using the custom plugin feature in OPTUM GX.”

Christian Linde Olsen, Discipline Manager - Geotechnics Norway, Subsea7
Contact us for custom python plugin

Webinars

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Upcoming

30 minutes

OPTUM GX DEMO

 Live demo, followed by a Q&A session.

TBA

We’ll walk you through setting up a model, running an analysis, and interpreting results in real time, while showing how GX streamlines both 2D and 3D workflows. You’ll see the powerful built-in Python Editor in action and get immediate answers from our experts during the live Q&A.

To Be Annonced
Webinar thumbnail for stability of seabed slopes
Recorded
60 minutes

Stability of seabed slopes

Automated design with OPTUM GX

Apr 16, 2023
OPTUM GX, our new Finite Element software, featuring tailored Python plugins that automate design processes and save engineers up to 1,000 hours. Learn how the Au2Rox™ plugin streamlines complex projects, reducing design time by more than 3,000 hours.
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Recorded
60 minutes

The bearing capacity equation

When They Align — and Why They Differ

May 7, 2020
We address a frequent user question about the discrepancies between the bearing capacity equation and Optum’s software. Learn when the bearing capacity equation provides exact results, why variations occur in certain scenarios, and how both methods excel in design and verification.

Advanced Solid Modeling for 3D Finite Element Analysis 

One of the most time-consuming and error-prone aspects of 3D finite element analysis is geometry definition — in other words, solid modeling. Traditional approaches can be tedious, inflexible, and often rely on frustrating trial-and-error processes for even basic operations.

That’s why we built our solid modelling engine in GX from the ground up — using in-house algorithms that have been rigorously tested.
The result? A robust and intuitive modelling tool that offers unmatched flexibility and ease of use.

Going from 2D to 3D has never been easier.

Switch Between Conversion units: SI and US Customary

The software supports both SI and US customary units — so you can work in the system that fits your project.

Within each system, you can choose from a wide range of unit options for individual parameters. For example, define kPa/MPa or psi/ksi for shear strength, depending on your preference or project standards.

Traditional Approach

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Plane strain (2D) analysis is a fast and powerful option in many cases — and often a good starting point.

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The Gx Way

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When 2D is no longer sufficient, convert your model to 3D with a single click. No need to rebuild geometry — just extend your 2D section into full 3D and continue your workflow.

Save Time With Automated Reporting And Documentation

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Tired of spending hours manually documenting your projects? Optum GX automates reporting — saving engineers valuable time and ensuring consistent, high-quality documentation.

The built-in reporting module lets you generate clear and comprehensive reports in just a few clicks.
Each report can be customized and typically includes:

  • Geometry sketches
  • Material data tables
  • Construction stage sequences
  • Key results such as deformation plots, force diagrams, and collapse mechanisms

Reports are generated in PDF format and can be further edited as needed.

end-to-end solution: From Modeling to documentation

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Define geometry: Use the drawing tools to quickly define the geometry of your model
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Load and materials: Apply loads, soil material, structural elements, etc to have a full physical representation of the problem considered.
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Analysis: Select the relevant analysis, e.g. Factor of Safety or Deformation and Press play. Subsequently inspect the results and make relevant decisions.

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Documentation: After iterative refinement of your model, e.g. adjustment of retaining wall or foundation dimensions, the final task is to document the analyses and results. The report generation module is used for this purpose.

end-to-end solution: From Modeling to documentation

Design geometry: Use the drawing tools to quickly define the geometry of your model.
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Load and materials: Apply loads, soil material, structural elements, etc to have a full physical representation of the problem considered.
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Analysis: Select the relevant analysis, e.g. Factor of Safety or Deformation and Press play. Subsequently inspect the results and make relevant decisions.
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Documentation: After iterative refinement of your model, e.g. adjustment of retaining wall or foundation dimensions, the final task is to document the analyses and results. The report generation module is used for this purpose.
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    Mohr-Coulomb
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    Tresca

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    Drucker-Prager

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    Hardening Soil with small strain stiffness (HSSmall)

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    Hoek-Brown
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    Soft soil (with and without creep)

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    Anisotropic Undrained Shear strength model (AUS)

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    Soft Soil Creep (time dependent behavior)

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    Modified Cam Clay

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    Nonlinear Sand

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    Arbitrary variation of parameters in 2D and 3D

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    Elastoplastic beams, plates and shells

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    Geometrically nonlinear geogrids

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    Morh-Coulomb

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    Tresca

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    Drucker-Prager

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    Hardening Soil with small strain stiffness (HSSmall)

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    Hoek Brown (rock)

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    Soft soil (with and without creep)

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    Anisotropic Undrained Shear strength model (AUS)

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    Soft Soil Creep (time dependent behavior)

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    Modified Cam Clay

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    Nonlinear Sand

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    Arbitrary variation of parameters in 2D and 3D

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    Elastoplastic beams, plates and shells

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    Geometrically nonlinear geogrids

Pricing

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Basic
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4950€
/seat
Yearly subscription
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    Plane strain and axisymmetry (2D)

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    3D solid modeling

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    Steady state groundwater flow

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    Many material models including HSSmall

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    Limit analysis and elastoplastic analysis

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    Python scripting

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    SI and Imperial units

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PRO
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7950€
/seat
Yearly subscription all inclusive
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    Full 3D analysis and design

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    Plane strain and axisymmetry (2D)

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    Time dependent groundwater flow in 2D and 3D

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    Fully coupled flow deformation analysis

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    Many material models including HSSmall

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    Limit analysis and elastoplastic analysis

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    Python scripting

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    SI and Imperial units

System requirements

Operating system

Microsoft Windows 10 (64-bit)

CPU type

64-bit Intel Multicore processor or AMD Athlon 64 processor

Memory

Required: 4GB
Recommended: 8 GB

Display resolution

Basic: 1024 x 768 pixels, 32-bit color palette
Recommended: 1920 x 1080 pixels, 32-bit color palette

Disk space

6 GB

.NET framework

.NET Framework Version 4.5.2

MAXIMIZE YOUR SOFTWARE INVESTMENT

In just one day, your engineers will gain a deep understanding of OPTUM GX, allowing for more efficient and seamless use. We recommend starting with a real project you're already working on. This makes the training highly relevant — and helps the software become part of your team’s everyday workflow from day one. The course is more than just onboarding. It’s an investment in your team’s professional development and the successful implementation of your software.

A small effort with a significant return.

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