An assembly with 500+ components, a deadline in a week – and suddenly one sub-assembly starts to “crash” performance: the model takes ages to rebuild, opens slowly, freezes during rotation, and a small change to a part carries the risk of costly errors in related elements. For engineering teams working in SolidWorks with large assemblies, imported STEP/IGES files and complex dependencies, this is not a rare exception, but part of their daily work. That is why SolidWorks AI in release R2026x FD02 has become Dassault Systèmes’ practical response to three pressing challenges: analysing assembly performance via the Assembly Performance Evaluator, converting BREP models to parametric CAD, and assessing the impact of changes using Design Change Impact.
SolidWorks R2026x FD02 is not a standalone “major release”, but an interim functional update in the Functional Delivery format. This approach allows Dassault Systèmes to add new capabilities more quickly between major releases, so that engineering teams do not have to wait a year for tools that can already improve their work with models. In the case of R2026x FD02, particular attention has been paid to SolidWorks AI features: assembly performance analysis, conversion of BREP geometry into parametric components, and assessment of the impact of changes before making edits.
For the user, this means one simple thing: you can start exploring and testing the new AI tools right now, without postponing process optimisation until the next major release. If your team works with complex assemblies, imported STEP/IGES files, or intricate dependencies between parts, it is worth checking the validity of your licence, your connection to the platform, and the available SolidWorks capabilities. GEO-MENTOR helps you assess your current CAD environment, prepare test scenarios and understand which R2026x FD02 features will benefit your specific manufacturing process.
The Assembly Performance Evaluator helps you quickly identify the reasons why a large assembly is running slowly. Instead of manually cycling through display modes, the number of mates, fastener detail levels or heavy components, an engineer can ask questions in natural language and receive specific recommendations. SolidWorks AI analyses the assembly, highlights potential issues and suggests what to check first. This is particularly useful when the model consists of hundreds of parts and time to find the “bottleneck” is limited. To start with, you can ask simple, practical questions:
It is important to understand the tool’s limitations: Assembly Performance Evaluator is in Beta status, meaning it is already available for testing, but its capabilities may change in future updates. It does not make decisions on behalf of the designer and does not re-assemble the model automatically without specialist oversight. The AI provides recommendations, whilst the engineer verifies them, taking into account company standards, manufacturing requirements and the actual logic of the product. It is precisely this format that makes the tool a useful assistant, rather than a risky “black box” in the CAD process.
BREP, or Boundary Representation, this is a method of representing geometry using boundary surfaces. When imported via STEP or IGES, such a model is imported into SolidWorks without a tree structure, editable operations or parametric logic. Previously, such a model often remained “dead”: it could be measured or inserted into an assembly, but it was difficult to structurally modify a hole, chamfer or fit. This is where SolidWorks AI offers a practical advantage: BREP to Parametric CAD helps convert an imported BREP model into an editable SolidWorks component.
The feature is useful for companies that regularly receive STEP/IGES files from suppliers, contractors or customers. For example, you may need to adapt an equipment housing to your own fasteners, standards or manufacturing requirements. Instead of manual remodelling, AI helps you transition more quickly to a parametric CAD model. The tool is particularly relevant when you need to:
BREP to Parametric CAD does not replace engineering verification. After conversion, it is necessary to assess the accuracy of the geometry, the correctness of the recognised elements, and the model’s compliance with manufacturing logic. However, for teams that frequently work with imported non-parametric files, this can significantly speed up the workflow.
In a complex assembly, even a minor edit can trigger a chain reaction: you change a hole in one part and suddenly need to update fasteners, adjacent components, drawings, specifications or calculations. The worst-case scenario is when such consequences only become apparent after changes have been made, leaving the team spending time fixing errors rather than designing. Design Change Impact helps assess risks in advance: SolidWorks AI shows which parts, assemblies and downstream dependencies may be affected. Before making changes, the engineer sees not just a single isolated change, but the entire map of its impact:
Thanks to this approach, the team makes informed decisions rather than “putting out fires” after a failed modification. For example, if a change affects the fastenings, loads or geometry of a critical assembly, it should not only be assessed within the context of the assembly but also verified through simulation. To this end, GEO-MENTOR can help select and configure SolidWorks Simulation so that the team can see not only the area affected by the change but also its technical implications for the product.
Assembly Performance Evaluator, BREP to Parametric CAD and Design Change Impact should be viewed not as separate AI features, but as part of the broader SolidWorks AI Virtual Companions ecosystem. On the official SolidWorks AI Companions page, LEO is described as an engineering assistant for mechanical design: it works with assemblies, simulations, STEP files, parametric elements and errors in models. MARIE has a different focus – scientific research, materials science, hypotheses, chemistry and laboratory analysis. In other words, AI within the SolidWorks environment is gradually becoming not a replacement for an engineer, but a digital partner that helps to analyse models more quickly, test ideas and reduce the number of routine tasks.
To access the new AI features, you need an active SolidWorks subscription, a connection to the 3DEXPERIENCE platform, and access to the beta tools via the SolidWorks Labs tab in the Task Pane. If a team wishes to combine CAD models, engineering data and collaboration within a single environment, it is worth exploring the capabilities of 3DExperience Works. GEO-MENTOR can help verify licences, activate the required features and prepare the team to work with AI tools on real-world projects.
SolidWorks AI is already part of the current R2026x FD02 release, not some distant future of CAD design. The Assembly Performance Evaluator helps identify the causes of slow assembly performance, BREP to Parametric CAD simplifies the editing of imported geometry, and Design Change Impact highlights the risks of changes before they are implemented. To evaluate these features for your projects and implement them without unnecessary risks, please contact our GEO-MENTOR team.
No, SolidWorks AI does not replace a designer or CAD specialist. The tools analyse the model, highlight problem areas, show the potential consequences of changes, and help you work more quickly with imported geometry. However, the final decision, model verification, compliance with standards, and technical responsibility remain with the engineer.
SolidWorks AI features are particularly useful for companies working with large assemblies, STEP/IGES files, complex assemblies and frequent changes to designs. This is particularly relevant for the defence industry, instrument manufacturing, mechanical engineering, aerospace, the oil and gas sector, the mining industry and infrastructure construction, where an error in the model can affect timelines, drawings, specifications and production.
BREP to Parametric CAD helps convert imported BREP models into editable SolidWorks components, but the result must be checked. The quality of the conversion depends on the complexity of the geometry, the file structure and the accuracy of the source model. We recommend testing the feature on typical company parts before applying it to critical workflows.
If large assemblies take a long time to open, rotate slowly, freeze after changes, or hinder teamwork, the Assembly Performance Evaluator may be useful. The tool helps you quickly identify factors affecting performance and receive optimisation recommendations. This is useful for teams that regularly work with hundreds of components.
To access SolidWorks AI, you need to check your licence, your connection to the 3DEXPERIENCE platform, and the availability of beta features within the SolidWorks environment. GEO-MENTOR can assist with assessing your current configuration, setting up the necessary tools, testing AI features on real-world models, and training your team.
