This demo uses AI to read emails instead of write them from scratch. Each email is categorized and prioritized, and some are auto-archived while others get an automatically-drafted reply. The assistant processes emails individually according to a custom “System Prompt” that explains exactly how I want each one handled. You can try your own labeling logic by editing the System Prompt.
It’s obvious how much more powerful this approach is, so why didn’t the Gmail team build it this way? \\

Source: Pete Koomen