# The best AI email assistants in 2026

The best AI email assistant is Superhuman for speed in Gmail or Outlook, Shortwave for AI search across Gmail, Fyxer for drafts plus meeting notes, Gemini or Copilot if you already pay for Google or Microsoft, Missive for shared team inboxes, Lindy for an assistant across many tools, and Mojobase for drafts that use your whole business.

Updated 7 November 2026. Published 7 November 2026 by Mojobase team

## Which AI email assistant should you choose?

Pick by what slows you down most. Here's the short version, with the reasoning for each below.

| If you want | Choose | Why |
| --- | --- | --- |
| The fastest email client with AI | Superhuman | Split inbox and snippets, with Auto Drafts and Ask AI on Business |
| AI search across years of Gmail | Shortwave | Ask questions of your whole mailbox, with Claude models |
| Drafted replies plus meeting notes | Fyxer | Sorts, drafts in your tone and records meetings |
| AI you may already pay for | Gemini in Gmail or Copilot in Outlook | Built into Google Workspace and Microsoft 365 |
| A shared inbox for the team | Missive | Shared email, SMS and WhatsApp, with AI drafts |
| An assistant across many tools | Lindy | Works through Slack, email and 1,500+ integrations |
| Drafts that know your whole business | Mojobase | Email beside invoices, calendar, tasks and customers |

We make Mojobase, so weigh its entry accordingly. Every fact about the other products comes from their own websites, checked on 7 November 2026, with each price linked to its source below.

## What should an AI email assistant actually do?

Four jobs, in order of how much time they save. First, sort: separate what needs a reply from what's waiting on someone else and what can be ignored. Second, draft: write replies you'd send with light edits, in your tone. Third, follow up: notice when someone hasn't answered and remind you, or draft the nudge. Fourth, answer questions: "what did I promise Northside last month?" with the email to prove it.

The difference between assistants is less the model and more what it can see. An assistant that only reads your inbox can draft a polite holding reply. One that also sees the invoice, the meeting notes and the delivery date can draft the real answer.

## How do the best AI email assistants compare?

### Superhuman: the fastest AI email client

Superhuman is an email app for Gmail and Outlook accounts, built for speed, with a split inbox, snippets, snooze and send later. Mail Starter includes Write with AI, Instant Reply, Auto Labels, Auto Archive and Auto Summarize at $25 a member a month billed yearly. Business, at $33, adds Auto Drafts, Ask AI, voice and tone matching, HubSpot and Salesforce integrations and Superhuman's Mail MCP, which lets Claude, ChatGPT and Perplexity work with your inbox. It suits people who live in email and want to get through it faster.

### Shortwave: the best AI search for Gmail

Shortwave is a Gmail app whose AI assistant organizes, writes, searches and schedules, running on Claude models at four intelligence levels. Its strength is search: ask a question and it reads across your mail history, up to five years on Business. The free plan has a limited daily quota; Business is $30 a seat a month, and the AI quota resets daily with no way to buy more. It needs a Gmail or Google Workspace sign-in.

### Fyxer: the best for drafts plus meeting notes

Fyxer works inside Gmail or Outlook: it sorts and labels incoming mail, drafts replies in your tone, records meetings and keeps a follow-up list of what was promised. Pro is $37 a person a month billed yearly, or $49 monthly, and AI work is metered in credits. The free plan gives a daily briefing and meeting notes but no drafted replies. It suits consultants and agencies who spend their day between email and calls.

### Gemini in Gmail: the best if you're on Google Workspace

Google Workspace includes Gemini in Gmail from Business Starter, at $7 per user per month, and in Docs, Drive, Meet and Chat from Business Standard, at $14 per user per month. Both rates require a one-year commitment and are billed monthly. It works inside the apps you already use, Google says company data in Gemini isn't used to train models, and it costs nothing extra if you already pay for Workspace.

### Copilot in Outlook: the best if you're on Microsoft 365

Microsoft 365 Copilot works inside Outlook, Word, Excel, PowerPoint and Teams, grounded in your work data. It comes with the Business Standard with Copilot plan at $23.50 a user a month paid yearly, or as an add-on. The free Copilot Chat in business plans doesn't read your organization's email. It suits businesses already standardized on Microsoft.

### Missive: the best for a shared team inbox

Missive brings shared and personal email, SMS, WhatsApp and social messages into one app, with internal chat, assignment and tasks. Its AI assistant drafts replies and searches email and calendar, on Productive at $24 a user a month billed yearly, using Missive's AI credits or your own API key. It suits small teams that answer customers together from shared addresses.

### Lindy: the best assistant beyond email

Lindy is an AI teammate that works through Slack, iMessage and email: it clears your inbox, drafts in your voice, preps meetings and updates your CRM across more than 1,500 integrations. Anything with outside impact, such as sending an email, waits for your approval. Observed US Team offers include 3,000 credits at $29.99 or 5,000 credits at $49.99 per active user monthly; eligibility and duration are unknown. It suits people who want one assistant for email and the rest of their tools.

### Mojobase: the best for drafts that know the whole business

Mojobase Email hosts business email on your own domain, or connects the Gmail, Microsoft 365 and IMAP mailboxes you already use, with no limit on how many. New mail is sorted as it lands. Replies are drafted with the facts in them: the Stripe invoice in Numbers, the promise from the call, the delivery date from Tasks and the tone of voice from your Handbook. Mail you're waiting on is watched, and the morning run drafts the nudge.

Scheduled runs write drafts and suggestions only; you read, edit and send. It costs $39 a month for the first person and $25 for each after, with calendar, tasks, documents, customers, team chat and a monthly AI allowance included. It suits a small business where email is how the work gets done, and the replies depend on what's happening everywhere else.

## How much do AI email assistants cost?

Prices are per user a month, from each company's own pricing page.

| Assistant | Free plan | Paid plan with AI drafts | Works with | Source |
| --- | --- | --- | --- | --- |
| Superhuman | No free Mail plan | $25 (Mail Starter, billed yearly); Auto Drafts on Business, $33 | Gmail, Outlook | [superhuman.com](https://superhuman.com/plans/mail) |
| Shortwave | Yes, limited AI quota | $30 a seat (Business, billed monthly) | Gmail and Google Workspace | [shortwave.com](https://www.shortwave.com/pricing/) |
| Fyxer | Yes, no drafted replies | $37 (Pro, billed yearly); $49 monthly | Gmail, Outlook | [fyxer.com](https://www.fyxer.com/pricing) |
| Gemini in Gmail | No; 14-day trial | $7 per user per month (Google Workspace Business Starter; one-year commitment, billed monthly) | Gmail | [workspace.google.com](https://workspace.google.com/pricing) |
| Copilot in Outlook | No; one-month trial | $23.50 (Business Standard with Copilot, paid yearly) | Outlook | [microsoft.com](https://www.microsoft.com/en-us/microsoft-365/business/microsoft-365-plans-and-pricing) |
| Missive | No; 30-day trial | $24 (Productive, billed yearly) | Gmail, Outlook, IMAP | [missiveapp.com](https://missiveapp.com/pricing) |
| Lindy | $50 of credits for 7 days | $29.99/3,000 or $49.99/5,000 credits (observed US monthly offers, per active user; eligibility and duration unknown) | Gmail and other tools | [lindy.ai](https://www.lindy.ai/pricing) |
| Mojobase | None | $39 for the first person, $25 each after | Hosted on your domain, Gmail, Microsoft 365, IMAP | [Pricing](https://mojobase.ai/pricing) |

Watch how the AI is metered. Fyxer, Lindy and Missive bill AI in credits, Shortwave sets a daily quota, Superhuman bundles it into the plan, and Mojobase includes a monthly allowance shared by the company, with the option of your own API key.

## Should an AI email assistant send email by itself?

For most small businesses, not yet, and not by default. A reply to a customer can't be unsent, so the safest assistants draft and let you send, or hold anything that reaches outside the company for approval. Lindy holds outside actions for approval; Superhuman's Mail MCP can send replies when you ask it to through Claude or ChatGPT.

In Mojobase, the morning run and the other scheduled runs only ever write drafts and suggestions. When you ask in Quick actions (⌘K), the AI acts as you, and the kinds of change you've set to Auto happen straight away, with everything recorded in Activity with Undo.

## Where does Mojobase fit among AI email assistants?

Mojobase isn't the fastest email client or the cheapest add-on. If you want to clear Gmail faster, Superhuman or Shortwave will suit you better; if your company is all-in on Google or Microsoft, their built-in AI costs nothing extra. Mojobase is for the business owner whose replies depend on everything else, such as the invoice, the delivery and the meeting, and who'd rather have email, calendar, tasks and customers in one place than connect an assistant to each.

The [AI reply workflow](https://mojobase.ai/use-cases/ai-email-replies) follows a draft from its sources to review.

## Questions people ask

### What is the best free AI email assistant?

Shortwave's free plan includes AI with a limited daily quota and 90 days of AI search history. Fyxer's free plan gives briefings, meeting notes and chat, but not drafted replies or inbox sorting. If you already pay for Google Workspace, Gemini in Gmail is included from Business Starter.

### Which AI email assistant works with Outlook?

Superhuman and Fyxer both work with Gmail and Outlook accounts, and Missive connects Outlook alongside Gmail and IMAP. Microsoft 365 Copilot works inside Outlook itself. Shortwave needs a Gmail or Google Workspace sign-in. Mojobase connects Microsoft 365 and Outlook, Gmail and any IMAP mailbox.

### Can an AI email assistant write in my voice?

Most now try. Superhuman matches voice and tone on Business, Fyxer drafts in your tone from Pro, Shortwave learns from your sent mail, and Lindy drafts in your voice. Mojobase drafts in the tone of voice written down in your Handbook, so every person and agent sounds the same.

### Is it safe to let AI read my email?

Check three things: what it may do without you, what it's allowed to see, and whether your mail trains its models. Lindy holds anything with outside impact for approval. Mojobase's scheduled runs only write drafts and suggestions, and mailboxes can have the AI switched off.

### Do I need a separate AI email app at all?

Not if your mail provider's built-in AI is enough: Gemini in Gmail and Copilot in Outlook come with those suites. Separate assistants earn their price by sorting, following up and knowing more context, such as your calendar, meetings, CRM or, with Mojobase, invoices and tasks.

## Related

- [Email](https://mojobase.ai/email)
- [Let AI sort your inbox every morning](https://mojobase.ai/use-cases/email-triage)
- [The best Lindy alternatives for a small business (2026)](https://mojobase.ai/alternatives/lindy)
- [Superhuman vs Shortwave: which is right for a small business?](https://mojobase.ai/compare/superhuman-vs-shortwave)
- [The best Superhuman alternatives for a small business (2026)](https://mojobase.ai/alternatives/superhuman)
- [Gmail MCP server for Claude, ChatGPT and your own agents](https://mojobase.ai/mcp/gmail)
- [The best Fyxer alternatives for a small business (2026)](https://mojobase.ai/alternatives/fyxer)

## Sources

1. Superhuman: Mail Starter. [superhuman.com/plans/mail](https://superhuman.com/plans/mail), checked 7 Nov 2026.
2. Superhuman: Mail Business. [superhuman.com/plans/mail](https://superhuman.com/plans/mail), checked 7 Nov 2026.
3. Shortwave: Business. [shortwave.com/pricing/](https://www.shortwave.com/pricing/), checked 7 Nov 2026.
4. Fyxer: Pro. [fyxer.com/pricing](https://www.fyxer.com/pricing), checked 7 Nov 2026.
5. Google Workspace: Business Starter. [workspace.google.com/pricing?hl=en\_us](https://workspace.google.com/pricing?hl=en_us), checked 7 Nov 2026.
6. Google Workspace: Business Standard. [workspace.google.com/pricing?hl=en\_us](https://workspace.google.com/pricing?hl=en_us), checked 7 Nov 2026.
7. Microsoft 365: Microsoft 365 Business Standard with Copilot. [microsoft.com/en-us/microsoft-365/business/microsoft-365-business-standard-with-copilot](https://www.microsoft.com/en-us/microsoft-365/business/microsoft-365-business-standard-with-copilot), checked 7 Nov 2026.
8. Missive: Productive. [missiveapp.com/pricing](https://missiveapp.com/pricing), checked 7 Nov 2026.
9. Lindy: Free plan. [lindy.ai/pricing](https://www.lindy.ai/pricing), checked 7 Nov 2026.
10. Lindy: Team. [lindy.ai/pricing](https://www.lindy.ai/pricing), checked 7 Nov 2026.
11. Lindy: About the pricing. [lindy.ai/pricing](https://www.lindy.ai/pricing), checked 7 Nov 2026.

---

Source: https://mojobase.ai/blog/best-ai-email-assistants · Updated 7 November 2026