The New COMSOL Multiphysics® Version 6.4
COMSOL Multiphysics® version 6.4 introduces new modeling and productivity features, major performance improvements, and expanded multiphysics capabilities.
The latest version includes greatly improved solver performance through the NVIDIA CUDA® direct sparse solver, NVIDIA cuDSS, for NVIDIA AI infrastructure, the new Granular Flow Module, and a new framework for time-explicit dynamic analysis.
In addition to these major updates, geometry, meshing, and visualization workflows in COMSOL Multiphysics® have been enhanced, and productivity has been further advanced through optional large language model (LLM)-assisted simulation. The Chatbot window now supports connections to GPT-5™, DeepSeek™, Google Gemini™, Anthropic Claude™, and other OpenAI API-compatible models, enabling interactive, model-aware assistance that combines COMSOL documentation with information from the active simulation.