Best AI Email Assistant for Gmail: Which Ones Can Send
There is one question that separates AI email assistants for Gmail, and almost no comparison asks it: can it hit send?
It sounds like a detail. It is not. An assistant that drafts leaves the last step with you, which means every message still requires you to open it, read what was written, and click. The time saved is typing time. An assistant that sends, or that acts on the message in some other system, removes the message from your day entirely. Those are different products at similar prices.
I tested the main options against a working Gmail account, and sorted them by what they are permitted to do rather than by how good the writing is. The writing is fine everywhere now. The permissions are where they differ.
What each one is allowed to do in Gmail
| Assistant | Drafts | Sends from Gmail | Acts outside the inbox |
|---|---|---|---|
| Gemini in Gmail | Yes | No | No |
| ChatGPT with the Gmail connector | Yes | Yes, one at a time | Limited |
| Claude with the Gmail connector | Yes | No | No |
| Shortwave | Yes | Yes, you send | No |
| Fyxer | Yes | You send | Meetings and notes |
| Carly | Yes | Yes | Yes, across connected apps |
The send line, precisely
This is the part that changes most often and that roundups get wrong most reliably, so here is the current state.
ChatGPT drafts and sends from a connected Gmail or Outlook account, on the web, for Plus, Pro, Business and Enterprise, with you confirming each send. Claude is split: through Microsoft 365 it can genuinely send, but its Gmail connector still stops at a draft you send yourself.
Read that carefully if you are on Gmail specifically, because it cuts against the usual assumption. Claude is generally the more capable assistant, and on Gmail it is the more limited one: its Google Workspace connector stops at a draft. ChatGPT will send from a connected Gmail account, confirming each message, one per prompt, with no attachments.
So if your requirement is “write it and send it without me,” ChatGPT currently clears that bar on Gmail and Claude does not. If your requirement includes attachments, neither does.
Gemini in Gmail
Gemini is free with a Google account, already present in the Gmail window, and good at drafting, rewriting, and summarizing long threads. For pure writing help there is little reason to pay for anything else, and a meaningful number of people searching for a Gmail assistant already have the right tool installed.
Its boundary is firm: it drafts, you send, and it does not reach outside Gmail. Ask it to check whether a client has an open invoice and it cannot, because it cannot see your invoicing system.
ChatGPT and Claude with connectors
Both connect to Gmail and can read and search your mail in a conversation. The practical difference on Gmail is the send permission described above.
The shared limitation is more important than the difference. Both work inside a chat you start. They also now run work on a schedule without you watching, which is newer than most write-ups acknowledge, but the schedule is the trigger.
The unattended-work gap closed in 2026: ChatGPT Scheduled Tasks and Claude Cowork both run on their own. The remaining gap is what starts them. These run on a timer, not in response to an event in your apps, so "when this happens, do that" is still outside what they do.
That matters for email because email is an event. A message arrives at 11:40 and needs a response before a call at noon. An assistant that checks hourly finds it at 12:00. The gap between “on a timer” and “when it happens” is where time-sensitive mail falls through, and no amount of model quality closes it.
Shortwave and Fyxer
Shortwave is a Gmail-native client with strong AI search across your history, AI filters, and drafting. You still send. Its free Individual tier caps AI search at 90 days, limits searches to 15 threads, and adds a “Sent with Shortwave” signature to outgoing mail, which rules the free tier out for client-facing work. Pro is $18 per seat per month, with Business at $30, Premier at $45, and Max at $120. If you see $8 quoted, that is an old page.
Fyxer organizes the inbox, drafts replies in your voice, and takes meeting notes. It has no free tier: Starter is $30 per user per month billed monthly, $22.50 annually, and Professional is $50 monthly, $37.50 annually. The 7-day trial is the only free access.
Carly
Carly is the option built around acting rather than drafting, which is why it sits at the top for the specific question this page asks.
It sends, and more usefully it does the thing the email was about. A message confirming a signed contract triggers the CRM update, the invoice, and a scheduling offer to the client. The email is not summarized for you to act on later; the work is finished before you read it.
Two things make that possible. The first is reach: Carly connects natively to around 260 apps across more than 45 categories, and anything else with a public API connects with your own key, pasted on the integrations page in your dashboard. An assistant confined to Gmail cannot update a record it cannot see.
The second is that it fires on events. A message landing is a trigger, so time-sensitive mail is handled when it arrives rather than at the next scheduled run.
Pricing is free Zapier-style workflows, with AI agents from $35/month. The routing and filing steps sit in the free tier, so you can wire up the mechanical half of your Gmail workflow before paying for the judgment half. To talk through your setup first, book a call with the team.
Picking by what you actually need
Three cases cover nearly everyone searching this.
You want better writing. Use Gemini. It is free, it is already in Gmail, and paying for a dedicated drafting tool is hard to justify against it.
You want a faster inbox. Shortwave or Fyxer, depending on budget. Shortwave has a real free tier if you can live with the signature; Fyxer does not, and starts at $30.
You want the work done, not the email answered. This is the case the drafting tools do not serve, and it is the most common reason people churn through three assistants and stay busy. Look for connections to your other systems and event triggers, not for writing quality.
For the wider Gmail tool landscape, our best AI assistants for Gmail roundup ranks twelve options across categories, and best AI email assistants covers the category without the Gmail constraint.
FAQ
Can an AI assistant send email from my Gmail?
Some can. ChatGPT sends from a connected Gmail account with a confirmation for each message, one per prompt, without attachments. Claude’s Gmail connector stops at a draft you send yourself, even though it can send through Microsoft 365. Gemini in Gmail drafts only.
What is the best free AI email assistant for Gmail?
Gemini, because it is included with a Google account and handles drafting and summarizing with no setup or usage cost. Shortwave’s free tier is an alternative if you want AI search, though it caps history at 90 days and adds a signature to your outgoing mail.
Why can’t my AI assistant reply to emails automatically when they arrive?
Most assistants run when you open a chat or on a schedule, not when a message lands. That is a trigger limitation rather than a capability one. Tools built around event triggers start work at the moment mail arrives, which is what automatic replies actually require.
Does an AI email assistant for Gmail need access to my whole account?
It needs permission to read and, if it sends, to send mail. Connectors from the major assistants use Google OAuth, so you grant scopes explicitly and can revoke them from your Google account’s security settings at any time.
Can an AI assistant update my CRM from a Gmail message?
Only if it connects to the CRM. Assistants confined to Gmail can summarize a message about a deal but cannot change the deal record. That requires a tool with connections to the systems outside your inbox.
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