While Paint 11.2410.28.0 gets generative fill and erase, an improved model for Cocreator, and an updated Image Creator, Notepad 11.2410.15.0 comes with AI-assisted content rewriting. Currently, only Windows Insiders in the Canary and Dev Channels on Windows 11 in select markets can access these features.https://www.notebookcheck.net/Microsoft-Paint-and-Notepad-get-AI-infused-capabilities-on-Windows-11.914439.0.html
"Notepad will launch by up to 55% faster for most users."
If notepad takes too long to load you've got bigger issues.