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COMSOL Takes the Technical Lead Among the Big Three in Multiphysics Simulation

In-depth with COMSOL's VP and CTO, ED FONTES, on the fierce competition with ANSYS and SIEMENS, the AI revolution, and how it affects the 2027 release of the Multiphysics platform.
A profound paradigm shift is underway in the world of digital Simulation & Analysis (S&A). Historically, these tools served as digital checkpoints—a clever way to cut down on costly physical prototypes and verify performance at the eleventh hour. Those days are gone. Today, S&A has emerged as a core engine driving product innovation and strategic decision-making across the entire product lifecycle.
Simultaneously, AI is transitioning from hyped experimentation into practical application within the daily workflows of engineers. This is no distant vision; a significant share of global enterprises are already deploying AI solutions in production environments. According to Forbes Business Insights, global manufacturers invested roughly $8 billion in AI during 2025. These investments are fueled by everything from advanced data analytics to leveraging AI to build and optimize the actual simulation models on the CAE side. The annual growth rate is staggering: approximately 40 percent.
In this undeniably dynamic market, a clear trend has emerged: multiphysics simulation is becoming increasingly business-critical. Analyst firm CIMdata highlights a distinct "shift left" in the development cycle, where verification is moved earlier through large-scale, cloud-based virtual environments. At the same time, AI surrogates have begun compressing multiphysics cycle times drastically, democratizing these tools for a broader user base beyond traditional CAE specialists. This evolution plays directly into the hands of Swedish software developer COMSOL and its flagship platform, COMSOL Multiphysics.
When the company recently rolled out its new 2027 platform, which will be released later this fall, the headline breakthrough was a definitive leap into the realm of agentic AI. Previously, AI in this space was limited to generative chatbots offering coding assistance and guidance. Now, COMSOL is introducing an entirely new infrastructure purpose-built for external AI agents, driven by the new COMSOL MCP Server. VP of Development and CTO Ed Fontes was visibly enthusiastic when PLM&ERP News caught up with him at a launch event in Cambridge.
"With the COMSOL MCP Server, we are taking a major step toward agentic simulation. AI assistants and agents can communicate directly with COMSOL Multiphysics through the Model Context Protocol and use large language models to create, modify, run, and analyze models. COMSOL Multiphysics is particularly well suited for this because the entire modeling environment can be controlled through a unified, object-oriented API. An AI agent can therefore work with the complete modeling workflow through a single interface."
With this move, COMSOL cements its status as one of the market’s three sharpest innovators in multiphysics S&A tools.
While debates will always persist over who holds the absolute technical crown, it is undeniable that Ansys/Synopsys, COMSOL, and Siemens/Altair are the three players currently leading the charge in combining AI with multiphysics solutions. Yet, structural signs suggest COMSOL might just hold the true technical edge. The question is: how?

Commercially speaking, Ansys/Synopsys sits at the top of the multiphysics triad. For 2026, the Ansys division is projected to account for approximately $3.0 billion of the total. According to PLM&ERP News estimates, Siemens is poised to claim the second spot on the leaderboard at around $1.6 billion, calculated on the assumption that the Altair acquisition is fully consolidated. Meanwhile, COMSOL finds itself on the lower half of the commercial top-ten list with revenues hovering around $200 million. On the flip side, very few players in the global PLM market can match COMSOL when it comes to profitability—nearly half of their revenue is pure profit.
Revenue is one thing, but what is it that truly allows COMSOL to stand out from the crowd? We take a closer look at the underlying factors before diving deeper into the breakthroughs of the company’s new 2027 version, which will be released later this fall.

AROUND 200,000 USERS. COMSOL Multiphysics is a universal simulation platform widely utilized across all engineering disciplines, manufacturing sectors, and scientific research fields. By delivering fully coupled multiphysics modeling alongside powerful model management tools, it provides a seamless and unified workflow regardless of the simulation’s complexity. However, the platform’s true heavy-hitting advantage lies in its inherent multiphysics capability. The world is multiphysics, and in reality, diverse physical laws always interact simultaneously—be it mechanics, thermodynamics, electromagnetism, or fluid dynamics. Supported by an extensive library of add-on modules, users can effortlessly unlock specialized capabilities for electromagnetics, structural mechanics, acoustics, fluid flow, heat transfer, and chemical engineering, while connecting the software directly with CAD tools and other third-party applications.This platform approach has also proven to be a commercial triumph. Globally, COMSOL now boasts a footprint of around 200,000 users, cementing its spot on the global top-ten leaderboard for Simulation & Analysis software and establishing it as a formidable challenger to both Ansys and Siemens Digital Industries Software in the multiphysics arena.

The Realities of Physics Force Disciplines to Converge
The answer lies in the evolving needs driving the development of multiphysics simulations. A prime example is how electronics now permeate virtually every product, creating a ripple effect across the entire value chain. Here, AI and S&A play a leading, transformative role.
Historically, electronics design, simulation, and analysis were treated as isolated disciplines—with chips and circuit boards on one side, and mechanical stress, fluid dynamics, and thermal behavior on the other. Today, the realities of physics are forcing them together. The world is inherently multiphysics, and in nature, different physical laws always interact simultaneously—including mechanics, thermodynamics, electromagnetism, and fluid flow.
When you press a button on your smartphone, it is never just an electronic event. The electrical current generates heat (thermal physics), which causes materials to expand (structural mechanics). This expansion can, in turn, alter the phone’s electrical resistance or, in worst-case scenarios, cause the screen to crack. Everything is interconnected, and few S&A players capture this interplay better than COMSOL Multiphysics.
”A fundamental strength of COMSOL Multiphysics is the way it separates the mathematical model from the numerical model,” Ed Fontes explains. ”The different physical phenomena are formulated as a unified system of equations, including the couplings between them. COMSOL Multiphysics then automatically translates this mathematical model into an appropriate numerical model for computation. This provides a particularly powerful and flexible foundation for multiphysics simulation, since different physical phenomena can be combined at the equation level rather than being limited to coupling separate, specialized solvers.”
”It also makes it possible to extend or modify the underlying equations and introduce entirely new couplings when needed,” COMSOL’s CTO concludes.
He adds that through its equation-first philosophy COMSOL stands apart from the competition. At its core, the software is a powerful solver for partial differential equations (PDEs). This gives users nearly total freedom. If a ready-made physics module does not cover a new phenomenon—such as in nanotechnology or advanced materials research—engineers can type their own mathematical equations directly into the interface. The software adapts to the user’s description of physics. The user never has to force a problem to fit the software’s limits.

SURROGATE MODELS SIT AT THE ABSOLUTE CENTER of today’s discussions around digital multiphysics. ”They simplify complex simulations while maintaining accuracy and offering faster computational performance, making them invaluable for optimizing designs, conducting parametric studies, and efficiently exploring vast design spaces,” says COMSOL’s Ed Fontes. Ever since COMSOL first introduced surrogate models in 2023, they have represented a major leap forward—a concept that has been further sharpened in the 6.4 version and, most recently, in the new 2027 edition of Multiphysics. ”Indeed, their introduction made it possible to build lightning-fast apps by rolling out features to train surrogate models using machine learning,” Fontes notes. He explains that by integrating these data-driven surrogate models into simulation apps, app users will receive nearly instantaneous simulation results based on their inputs.

Mechanics, Electronics, an Software in. a Unified Loop
These multiphysics challenges provide an incredibly compelling argument for investing in next-generation Simulation & Analysis. It is no longer sufficient to simulate electronics without simultaneously accounting for mechanical cooling and thermal stress. The market now demands the ability to predict a product’s mechanical, electrical, and software-driven behaviors within a single, continuous loop. This is precisely where COMSOL steps forward as an absolute heavyweight of the future, locked in fierce competition with Ansys and Siemens Digital Industries Software. Today, these three companies are widely regarded as the global leaders in the arena.

A critical observation in this context is that COMSOL’s absolute greatest strength is its fully integrated, holistic model. The entire software suite is built from the ground up around a single, unified interface. Consequently, geometry, meshing, and all physical phenomena are managed within one cohesive model tree. Coupling different physics—such as heat transfer, fluid flow, and structural mechanics—becomes exceptionally smooth because everything rests on the same mathematical foundation. Users completely avoid the hassle of transferring data between disparate programs. Because the various physical phenomena are combined directly at the equation level, the underlying couplings can be expanded or modified as needed, offering an unparalleled degree of flexibility.

Platform vs. Ecosystem: Two Distinct Philosophies
Ansys, on the other hand, boasts particular strengths across several highly specialized simulation domains. Prime examples include dedicated CFD (computational fluid dynamics) applications, crash and impact simulations, advanced contact problems within structural mechanics, and high-frequency electromagnetic wave propagation. For these specific challenges, Ansys offers mature, robust, and highly specialized solutions.
The fundamental difference therefore largely comes down to engineering philosophy. COMSOL Multiphysics emphasizes a shared, flexible mathematical framework designed to combine disparate physical phenomena natively. Conversely, Ansys has traditionally built its strength around highly specialized simulation technology tailored to distinct problem classes.

Ansys Fluent is a premier computational fluid dynamics (CFD) software platform. The tool is widely utilized to simulate, analyze, and predict the behavior of liquids and gases in the physical world.

In short, Ansys’s philosophy is built upon an ecosystem of market-leading, specialized applications—such as Fluent for fluid dynamics and HFSS for electromagnetics. While these can be linked together for multiphysics analysis, doing so often requires more setup and extensive data transfer between the disparate tools. Consequently, while Ansys is frequently chosen for massive, pure industrial simulations thanks to its specialized products, COMSOL offers an unmatched level of flexibility for research, advanced product development, and complex physics couplings—all thanks to its fully integrated environment.

System Modeling and Agentic AI in Focus
With this philosophical foundation in place, it is time to take a closer look at the details of the new COMSOL Multiphysics 2027. Notably, the company is changing its naming convention to reflect the release year rather than sequential version numbers. This makes Version 6.4 the final installment in the classic 6x series.
The headline advancements in the 2027 platform center primarily around new system diagramming tools, electric motor modeling, and—as previously noted—significantly expanded support for AI integrations and application development.

Ed Fontes highlights three critical technological leaps in particular:

COMSOL Multiphysics includes features for data-driven surrogate models—simplified, high-speed representations that emulate complex simulations. Thanks to their computational efficiency, they are widely utilized to enhance app interactivity and to accelerate optimization and uncertainty quantification (UQ) workflows.
  • ”1. Infrastructure for AI Agents: The COMSOL MCP Server acts as the primary catalyst for the transition to agent-based simulation. Through the Model Context Protocol, external AI assistants can communicate directly with the modeling environment. This means Large Language Models (LLMs) can now be deployed to build, modify, run, and analyze complex models in real time.”
  • ”2. AI-Driven Surrogate Models: By expanding capabilities for Deep Neural Networks (DNN), COMSOL is paving the way for lightning-fast approximations of time-dependent simulations. Furthermore, these surrogate models can be integrated as components within the all-new COMSOL Systems tool. By representing detailed multiphysics models at a fraction of the traditional computational cost, this functionality opens new doors for large-scale system simulation, optimization, and interactive digital twins.”
  • ”3. Expanded AI Support for macOS and Linux: In the 2027 release, both the Chatbot window and the Java Shell become fully accessible to macOS and Linux users. As a result, developers across all major operating systems can now leverage generative AI directly within their desktop environment for modeling assistance or to generate and execute Java code.”

COMSOL Systems: Multiphysics Models on a 1D-to-3D Scale
Alongside the flagship release, the company is introducing COMSOL Systems. This add-on product allows engineers to build system-level models that connect directly to one-, two-, or three-dimensional multiphysics simulations.
The launch represents a significant broadening of the platform portfolio. In tandem with the AI-centric features powered by the COMSOL MCP Server and the expanded operating system compatibility, the platform introduces the Electric Motor Module—a environment explicitly dedicated to modeling motors and generators. Additionally, theApplication Builderis now fully supported on macOS and Linux, an upgrade that Ed Fontes highlights as a critical improvement for global development teams.

Another heavy-hitting technical development is the introduction of a new time-periodic solver.
”This enables significantly faster simulations for applications in plasma, advanced electromagnetics, and MEMS (Micro Electro Mechanical Systems),” the company states in its official release. ”Further enhancements to solvers, geometry handling, meshing, and core productivity features collectively boost both the raw performance and the overall user experience within COMSOL Multiphysics.”

AN ELECTRICAL CIRCUIT MODEL created in COMSOL Systems, coupled with a detailed 3D multiphysics model built in COMSOL Multiphysics. This integrated approach enables engineers to seamlessly analyze physics at both the circuit and component levels simultaneously.

It is also worth noting that COMSOL Systems introduces an entirely new modeling environment tailored for full-system analysis, while granting users instant access to high-fidelity multiphysics modeling whenever required. Engineers will be able to construct electrical circuit diagrams, process flowcharts, and custom equation-based system models utilizing an expansive library of nearly 5,000 ready-made components.
”Individual blocks can represent electrical devices, process units, custom components, or fully detailed multiphysics model components. These building blocks can then be interconnected into systems of interacting components,” COMSOL explains in its launch materials. ”This architecture enables users to efficiently perform system-level modeling while seamlessly embedding high-fidelity models wherever localized physical effects must be resolved. Taken as a whole, this modeling methodology allows engineers to analyze precisely how individual component behaviors impact overall system performance.”

The Model Builder interface highlighting the Flowsheet interface, alongside its corresponding Settings window and a process flowchart displayed in the Graphics window. This system-level diagram is coupled with a high-fidelity 3D multiphysics model of a continuous mixer, establishing a direct link between overall process behavior at the system level and the localized physics within an individual processing unit.

AI-Assisted Simulation via Agentic Workflows
As noted in the introduction, COMSOL Multiphysics 6.4 initially introduced generative AI capabilities via a dedicated Chatbot window, which users could leverage for modeling guidance and programming assistance. In the 2027 platform release, the company takes its next major step in AI tool integration with the new COMSOL MCP Server. Utilizing the Model Context Protocol (MCP), this server provides a standardized framework for autonomous AI agents to interact directly with COMSOL Multiphysics. With the server in place, an agent can seamlessly execute modeling and simulation tasks through the COMSOL API, which grants complete access to all physics functionality and every phase of the modeling workflow.
An autonomous agent can construct or modify a model, execute simulations, evaluate outcomes, and use those findings to determine subsequent actions. Throughout this entire cycle, engineers retain full visibility, allowing them to review and fine-tune the agent’s progress within the COMSOL Desktop environment.

Mikael Sterner, COMSOL’s Director of Development, emphasizes that this capability unlocks advanced engineering workflows where modeling, simulation, optimization, validation, and reporting are closely linked in an iterative, goal-oriented loop.
”Engineers can remain focused on the core questions they need answered, while autonomous agents assist by executing the heavy lifting of the simulation work,” Sterner summarizes.

The All-New Electric Motor Module
The new Electric Motor Module delivers a highly streamlined environment explicitly tailored for modeling electric motors and generators within COMSOL Multiphysics. Specialized built-in features make it much simpler to evaluate performance metrics, operating ranges, losses, material effects, excitation circuits, and faults across both 2D and 3D domains. It also empowers designers to optimize machine architectures for enhanced performance, energy efficiency, and material utilization.
Crucially, the module offers expanded capabilities to couple electrical machine models directly with heat transfer, structural mechanics, acoustics, fluid dynamics, and external electrical circuits. This specialized multiphysics functionality enables engineers to efficiently and accurately analyze broader multiphysics aspects beyond pure electromagnetics, providing a comprehensive understanding of how interacting physical effects impact overall system performance.

CONCRETE MIGHT NOT SOUND LIKE the world’s most high-tech domain, but modern construction management relies on advanced digital tools at multiple levels to ensure well-informed decision-making. Heidelberg Materials—one of the world’s largest suppliers of building materials—fully recognizes this, providing contractors with access to multiphysics simulation through a custom app built with COMSOL’s Application Builder. The app empowers the company’s clients to leverage simulation to make well-founded decisions regarding cost-effective casting strategies directly on construction sites. Image: Karl Melander.

Democratizing Simulation: Expanding the Reach of the Application Builder
As noted by analyst firm CIMdata, multiphysics simulation is rapidly expanding to a much broader user base. COMSOL was a pioneer in this movement with its Application Builder. Introduced back in 2014, this tool enables simulation experts to transform high-fidelity multiphysics models into easy-to-use simulation apps, featuring interfaces tailored to specific tasks or target audiences. By prompting users only for relevant inputs, outputs, and parameters, these apps empower colleagues or clients with little to no simulation expertise to perform analyses and make physics-based decisions—whether they are in the office, out in the field, or on the factory floor.
Consequently, the value of simulation can be extended across more sectors of R&D operations. These simulation apps can also serve as customized interfaces for digital twin frameworks. With the release of COMSOL Multiphysics 2027, the Application Builder becomes fully supported on macOS and Linux, allowing a significantly wider community of developers to build custom simulation tools.

In Brief: Additional Highlights from the 2027 Release
COMSOL Multiphysics 2027 also introduces the following updates and core enhancements:

  • Advanced Geometry and ECAD Clean-up: Expanded features designed for the seamless simplification of ECAD layouts and planar geometric models.
  • Next-Gen Meshing Capabilities: Introducing new inner-grid meshing algorithms alongside significantly improved swept meshing.
  • High-Mach Fluid-Structure Interaction: Advanced structural coupling capability explicitly developed for fluid flows at high Mach numbers.
  • Refined Mechanical Contact: Enhanced boundary mechanics supporting contact modeling directly from edges and points to surfaces.
  • Expanded Acoustics Material Library: A newly introduced material library featuring specialized properties for biomedical and porous materials.
  • Accelerated Battery Simulation: Faster pseudo-4D simulations of batteries paired with a brand-new poroelasticity coupling for lithium-ion batteries.

A preview version of COMSOL Multiphysics 2027 was unveiled at the COMSOL Conference in the United Kingdom, where PLM&ERP News was in attendance. Stay tuned for upcoming feature profiles from the event, where engineering teams from Rolls-Royce and Airbus share how they deploy COMSOL to push the boundaries of modern industrial design.

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