Without doubt, the AI that has made the most difference to my day to day is Github Copilot by assisting me writing scripts. Now, Microsoft is making Github Copilot free for VS code. Details:

https://code.visualstudio.com/blogs/2024/12/18/free-github-copilot

and how to set it up is here:

https://code.visualstudio.com/docs/copilot/setup-simplified

Even if you never plan to write code Github Copilot in VS code allows to better understand and debug things like PowerShell, JSON and so on. I think it is a MUST for IT Professional to have in the toolkit.