Updated November 7, 2026

The best AI assistant for email, by what you need

Want less clutter, faster replies, or someone to handle it all? The right AI assistant for email depends on which. Here are the options, sorted by job.

OUR PICK

Something Big Agent

If what you want is an assistant, not a tool, this is the closest thing: it has its own name and email address, you text it a job, and it does the work in your inbox, calendar and the web, then writes back.

Free to try, no card; paid plans from $99 a month

Try Something Big Agent free →

Compared

Our pick first; the rest in the order we would suggest for this page's question. Starting prices were read on each vendor’s own pricing page on Oct 30, 2026; check there before you buy.

1. Something Big Agent

Free to try, no card; paid plans from $99 a month

A personal AI assistant you text or email like a person. It has its own name, email inbox and computer with a web browser. Connect Gmail or Outlook with one button and it reads what has come in, sorts, drafts and replies as you. It also sets and moves meetings on your calendar, follows up when you tell it to, makes phone calls, and keeps notes between jobs.

Best for: busy people and small-business owners who want their email handled, not just drafted.

Limits: No WhatsApp yet; you text or email it rather than phone it; outgoing calls reach the US, UK, EU, UAE and Argentina only.

2. SaneBox

Snack $4.54 a month, billed every 2 years

Filters your existing inbox into folders so only important mail stays in view; works with any email provider.

Best for: anyone who wants less clutter without changing email apps.

3. Gemini in Google Workspace

Business Starter $7 per user a month (list)

Google’s AI built into Gmail (and, on higher plans, Docs, Meet and more), included in Workspace business plans.

Best for: teams already on Gmail who want AI with no new app.

4. Fyxer

Free plan; Pro $37 per person a month yearly ($49 monthly)

An AI assistant inside Gmail or Outlook that sorts your inbox, drafts replies and takes meeting notes.

Best for: professionals who want their inbox triaged and replies drafted.

5. Jace

Plus $20 a month yearly ($25 monthly); free start

An AI email and calendar assistant that drafts replies and handles tasks, paid for in credits.

Best for: individuals who want one assistant across email and calendar.

6. Superhuman

Starter $25 per member a month, billed yearly

A fast email app for Gmail and Outlook with AI writing and triage.

Best for: people who live in email and want speed and keyboard shortcuts.

7. Shortwave

Business $30 per seat a month

An AI-first email client for Gmail with AI search, summaries and one-click replies.

Best for: Gmail users who want a faster email app with AI built in.

Questions

I just want less clutter

SaneBox filters any inbox into folders. If you also want replies handled, try Something Big Agent.

I am on Gmail and do not want a new app

Gemini is built into Gmail on Workspace plans. Something Big Agent also works inside your existing Gmail once connected.

If what you want is an assistant, not a tool, this is the closest thing: it has its own name and email address, you text it a job, and it does the work in your inbox, calendar and the web, then writes back.

Try Something Big Agent free →