Letty

Anyone who spends a chunk of the workday answering Gmail will see the appeal of Letty, an AI email assistant that drafts new emails and replies for you.

Letty is an AI email writer that aims for a personalized, professional tone, and it supports multiple languages, so you can write to contacts in more than one language without switching tools.

You can train Letty with your own data, which should make drafts sound closer to how you actually write.

That matters if generic AI phrasing is what puts you off these tools.

Letty is currently optimized for Gmail only, so Outlook users are out of luck for now.

It also runs as a Chrome extension, which means you need to install it in your browser before anything works.

Some plans rely on AI credits, so heavy daily use may mean watching your usage.

If your inbox is Gmail in Chrome, the setup is simple.