STM32Cube AI Studio Release Notes

Version 1.3.0 - August 2026

New Features and Improvements

  • When STM32CubeMX isn’t installed, cloud-hosted templates are used automatically for supported targets. This requires an internet connection and sign-in with your ST account. Full offline use still requires a local STM32CubeMX installation.

  • Added support for STM32CubeMX2, including STM32C5 boards.

  • Added CMake toolchain support.

  • Added MCU context selection when choosing your MCU.

  • Run reports now show NPU and HSP usage percentages on supported boards.

  • Added support for macOS (Ventura and later).

Bug Fixes

  • Fixed drag-and-drop memory pool behavior related to NPU status.

  • Run report durations and inference times now consistently show 2 decimal places.

  • Fixed an issue when launching STM32CubeMX from the packaged app.

Known Issues

Linux & Windows:

  • U3HSP generation fails with IAR 9.4.

  • Chinese characters in project path or project name not recommended.

On Linux:

  • Target validation may fail with: E200(ValidationError): TARGET: Unable to bind the ST.AI runtime with "network... Workaround: Relaunch the Run.

On macOS:

  • Automatic update can fail. Workaround: manually download the latest version from the ST website.

  • Application binary does not contain the ST Edge AI Core installer (unlike Windows/Linux). Download it separately from the ST website.

Version 1.2.0 - May 2026

The STM32Cube AI Studio 1.2.0 release introduces a major update to runs overview and memory allocation visibility, with new memory pool charts, weights mapping, and an improved centralized view of project runs.

This release also adds Single Sign-On (SSO) authentication, project hide/unhide capabilities, and simplifies installation for new users by integrating the ST Edge AI Core installer.

In addition, several UI/UX improvements, bug fixes, and hardware-related corrections have been implemented.

New Features and Improvements

User Interface Improvements:

  • Added memory pool chart visualization and weights mapping.

  • Added validation project export.

  • Added support for Makefile toolchain.

  • Added a complete runs list grouped by target, model, and key criteria.

  • Added support for Single Sign-On (SSO) authentication.

  • Added project hide/unhide functionality.

  • Integrated the ST Edge AI Core installer into the STM32Cube AI Studio installer.

  • Updated ST Community contact email information.

  • Added support for .keras, .h5, and .hdf5 model files.

  • Added proxy configuration and offline mode support for unconnected machines.

  • Implemented additional user interface and user experience improvements.

Hardware & Firmware Updates:

  • Corrected baud rate configuration handling.

Bug Fixes

  • Fixed STM32CubeMX project import when using unsupported toolchains.

  • Fixed incorrect availability of the Generate Code button when a run fails.

  • Fixed STM32CubeMX clock tree configuration issue on STM32U5 (0x481).

Known Issues

Linux & Windows:

  • U3HSP generation fails with IAR 9.4.

  • Chinese characters in project path or project name not recommended.

  • In some very rare cases the update fails to finish (under investigation).

On Linux:

  • Spurious error on target validation. Root cause not identified.

  • E200(ValidationError): TARGET: Unable to bind the ST.AI runtime with "network... Workaround: Relaunch the Run.