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Gmail-only Chrome extension that drafts replies in your writing style and can be trained on your documents.
Letty is a Chrome extension that adds AI-generated reply suggestions inside Gmail. It reads the thread, offers a handful of contextual reply options, and can be pointed at documents or websites so its suggestions pick up specific terminology or facts. A free plan gives 10 AI credits a month; paid plans raise that to 150 credits for $9 a month or unlimited credits for $19 a month. Outlook and Zoho support is listed as planned but not yet shipped, so today it only works inside Gmail in Chrome.
Free plan gives 10 AI credits a month; Premium is $9/month for 150 credits; Platinum is $19/month for unlimited credits, all listed on the pricing section of the site.
Use tool ↗Letty drafts Gmail replies that match your tone and can be grounded in documents or sites you feed it, which makes it useful if most of your email already lives in Gmail. It doesn't help outside Gmail yet, and the free tier's 10 credits a month will run out fast for anyone emailing daily.
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