The AI Email Assistants: Compared for Gmail and Outlook
An AI email assistant reads your inbox, sorts what matters and drafts replies for you to approve. In our directory, Fyxer AI lists Gmail and Outlook support, Shortwave lists replies in your voice, and Superhuman lists follow-up reminders.
Last checked: . Not affiliated with the companies listed. Based on public information — not tested by us. How we check.
How we picked these
Every tool below is a listing we checked against the vendor's own page, with the date shown. We label each as "Based on public information — not tested", and nobody pays to move up the list. Two groups appear because "AI email" means two different things: help with your own inbox, and agents that handle email as a task.
Comparison table
Prices are the vendors' own published starting prices. Order is by job, not by rank.
Help with your own inbox
| Tool | Best for | Free plan | Easy-Start | Pricing summary (vendor) | Our label |
|---|---|---|---|---|---|
| Fyxer AI | Busy professionals and small teams handling high email volume. | Yes | 10/10 | Free plan; Pro $37/person/mo billed annually or $49/mo monthly; Team $64/person/mo billed annually or $99/mo monthly; Enterprise custom annual contract | Based on public information — not tested |
| Shortwave | Professionals and small teams that handle heavy email volume. | No | 6/10 | Business $30/seat/mo, Premier $45/seat/mo, Max $120/seat/mo; 14-day free trial | Based on public information — not tested |
| Superhuman | Professionals who handle a high volume of email daily. | No | 8/10 | Starter $25/member/mo and Business $33/member/mo, billed annually (monthly billing available, about 17% more); Enterprise contact sales | Based on public information — not tested |
Agents and tools that automate email
| Tool | Best for | Free plan | Easy-Start | Pricing summary (vendor) | Our label |
|---|---|---|---|---|---|
| Lindy | Small teams that want to hand repetitive email, reporting and CRM work to no-code agents. | No | 8/10 | Free start with $50 in credits that last 7 days (no card needed); Team from $29.99/mo billed monthly (3,000 credits), with larger credit tiers up to $9,999.50/mo; extra credits $10 per 1,000; Enterprise custom | Based on public information — not tested |
| AgentMail | Developers building AI agents that need their own email addresses. | Yes | 10/10 | Free plan (3 inboxes, 3,000 emails/month); Developer $20/mo; Startup $200/mo; Enterprise custom | Based on public information — not tested |
Prices change. Confirm on each vendor's own pricing page.
Best for each need
You use Gmail or Outlook and want less sorting
Fyxer AI lists: labels and prioritizes incoming email; drafts replies for review; meeting notes and call follow-ups; reminders for commitments and unanswered emails. Trade-off: Drafts are not sent automatically; you review and send them.
You want an email app with AI search and filters
Shortwave lists: writes replies in your voice; plain-english ai filters to label, star or archive; ai search and q&a across email and attachments; checks availability and creates calendar events. Trade-off: No permanent free plan confirmed on the pricing page; annual prices not shown.
You want drafts that match your writing voice
Superhuman lists: ai drafting that matches your writing voice; follow-up reminders; inbox prioritization and triage; email assistant agent. Trade-off: No free plan listed; pricing page shows annual prices only.
You want an agent that does email plus other tasks
Lindy lists: drafts, schedules and replies to email; answers questions from meeting calls and documents; builds slide decks on request; updates crm records from slack. Trade-off: No permanent free plan; the free start is $50 in credits that expire after 7 days.
You are a developer giving an AI agent its own inbox
AgentMail lists: create and manage inboxes entirely via api; inbox provisioned in one api call; threaded replies in the same inbox; signed real-time webhooks for inbound mail. Trade-off: Developer tool; requires API integration and coding.
What to check before you choose
- Does it work with your email provider (Gmail, Outlook, other)?
- Does it send on its own, or only draft for you to approve?
- Is there a free plan or trial, and is the price per person per month?
- Does it connect to your calendar, CRM or team chat?
- What does it do with your email content? Read the vendor's privacy page.
Frequently asked questions
Can you send an email with AI?
Yes, but most tools here draft and you send. Fyxer AI says drafts are not sent automatically: you review and send them. Lindy lists drafting, scheduling and replying to email as an agent task. Check each vendor's settings before you let any tool send for you.
Which AI is good for emails?
It depends on the job. Fyxer AI lists inbox sorting and drafts for Gmail and Outlook, Shortwave lists replies in your voice plus AI search across email, and Superhuman lists voice-matched drafting and follow-up reminders. We do not rank one best, and we have not tested them.
Is there a free AI email assistant?
Of the tools here, Fyxer AI lists a free plan, and AgentMail lists a free plan for developers (3 inboxes, 3,000 emails a month). Shortwave lists a 14-day free trial. Plans change, so confirm on each vendor's pricing page.
What are some good email automation tools?
Lindy builds no-code agents that draft and reply to email and run recurring tasks on a schedule. AgentMail is a developer API that gives AI agents their own inboxes. Both suit automation more than everyday inbox triage.
Does an AI email assistant work with Gmail and Outlook?
Fyxer AI lists support for both Gmail and Outlook. For the others, the vendor pages we checked do not state it in the same words, so confirm your email provider with the vendor before you pay.
Keep exploring
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