Do You Use AI Email Assistants Like Google CC?

Hey HN! Newbie here,

I recently came across AI email assistant Google CC, where you can add an AI to a thread via CC to help draft replies or provide input. For those who’ve used tools like this, how useful are they in practicality? Google CC has a waitlist but it's the only one I could find that is free. So, I was also wondering if alternatives are worth paying for?

Inbox Zero is open source and free to self-host: https://getinboxzero.com

GitHub: https://getinboxzero.com/github