Gmail is no longer just a list of messages. With Gemini built in, it can summarise a 40-message thread in seconds, draft a reply from a one-line prompt, answer questions about your whole inbox in plain language, and surface the tasks hiding inside your mail. This guide covers every Gemini feature in Gmail, which ones are free, which need a paid plan, and where the AI still needs a human check.
The key idea is that Gemini in Gmail works in three layers. The side panel answers questions and acts on your mail. The compose window drafts and polishes what you write. And the newer AI Inbox reorganises your mail around to-dos and topics instead of a flat chronological list. Each layer has its own strengths, and its own limits.
Ask Gemini: The Side Panel That Reads Your Inbox
The main way to use Gemini in Gmail is the side panel. Open Gmail on your computer, click Ask Gemini at the top right, and a panel opens beside your inbox. You can pick a suggested prompt or type your own, and the panel stays open while you browse your mail.
Google lists five things the panel does: summarise, draft, organise, search and schedule. It can condense a long thread into bullet points, write a new email or refine a draft, archive or label batches of messages, find a specific detail like a flight time or a tracking number, and propose meeting times from your calendar.
The panel also reaches beyond Gmail. It can pull information from your Drive files and your calendar, create a Google Doc, a Sheet or a Slide from a prompt, and manage Drive files, such as saving an attachment to a folder or checking who a document is shared with. You can add specific Drive files as sources with the @ menu, so a draft can draw on the right document instead of guessing.
Two cautions apply to everything the panel does. First, it only sees your primary calendar, not shared or secondary calendars. Second, its conversation history is fragile: refreshing the browser or closing and reopening Gmail wipes it, so copy anything useful into a message before you navigate away.
Summarise Any Thread in Seconds
Thread summaries are the feature most people reach for first. Open a long thread, ask Gemini to summarise it, and you get the key points, the decisions and the open questions without reading every reply. It is most useful when you are added to a thread halfway through, or when you return to a conversation after a week away.
The panel can also summarise across threads. Ask it to pull together everything one person sent about a project, or to list the action items from your unread mail, and it builds one answer from many messages. That cross-thread view is where Gemini earns its keep: no single message contains the whole story, but the summary does.
Summaries compress by design, and compression drops caveats. A summary that says a price was agreed may miss that it was agreed subject to approval. Before you repeat a figure, a date or a commitment from a summary, open the source message and check it. The panel shows its sources, so the check takes seconds.
Help Me Write: Drafts From a One-Line Prompt
Help me write lives inside the compose window, not the side panel. Click Compose, then the Help me write button, type a short prompt describing what you want to say, and click Create. Gemini writes a full draft into the email, which you can edit before sending.
The prompt works best when it names the recipient, the point and the tone. “Decline the meeting on Friday politely and suggest next Tuesday” gives Gemini something concrete to work with. “Write an email” does not, and the result will read like generic corporate prose, because that is what an underspecified prompt produces.
If the first draft is not right, you can regenerate it with Recreate, or refine an existing draft with Formalize, Elaborate, Shorten or Friendly. A blunt first draft can be formalised into something diplomatic; a rambling one can be shortened to the point. Each refinement replaces the text only when you accept it, and you can keep editing by hand afterwards.
Help me write does not send anything. Every draft lands in your compose window, and you press Send. That matters: the AI proposes, you dispose, and anything it invented about a price, a date or a promise is caught by you before it leaves the building.
Proofread: The Paid Polish Pass
Proofread is the step after drafting. Where Help me write creates text, Proofread reviews it, offering suggestions on grammar, conciseness, active voice and register. It is the feature to run on a message that matters: a job application, a client proposal, or a sensitive note to a team.
The practical difference from a spellchecker is scope. A spellchecker catches typos. Proofread questions wordiness, flags passive constructions that bury responsibility, and spots tone mismatches, such as a casual phrase in a formal request. Accept suggestions one by one rather than all at once, because a suggestion that improves grammar can still change meaning.
Proofread is not in the free tier. It sits on paid Google AI plans, alongside inbox-wide question answering, while Help me write, thread summaries and suggested replies are available on free personal accounts. If you only see some Gemini features in your Gmail, the plan split is usually the reason.
Suggested Replies That Sound Like You
Suggested replies are the smallest Gemini feature and often the most used. When you open a message, Gmail offers short reply options that read the whole thread, not just the last message, so the suggestion fits the conversation rather than defaulting to a generic “Thanks!”
The suggestions work because they are contextual: a reply to a meeting request offers times, a reply to a question offers an answer-shaped response. They are a starting point, not a finished message. Tapping one drops it into the compose window, where you can adjust it before sending.
For routine mail, suggested replies can clear a dozen messages in minutes. For anything where tone matters, treat the suggestion as a draft: a one-tap reply to a difficult message is exactly how misunderstandings start.
Search Your Inbox in Plain Language
The most underused Gemini feature in Gmail is plain-language search. Instead of remembering operators, dates or exact subject lines, you can ask a question: “When is my package arriving?”, “What time is my next flight?”, “What did the supplier quote for the March delivery?” Gemini searches your mail and answers from the messages themselves.
This is the feature the research calls inbox-wide question answering, and it is different from a thread summary. A summary condenses one conversation. An inbox answer searches everything, retrieves the candidate messages, and extracts the figure or date you asked for. It is the closest Gmail gets to asking your past self a question.
Two limits apply. First, inbox-wide answering sits on paid plans, unlike thread summaries. Second, Gemini answers from what it found, and it will not always tell you what it did not find. If the answer matters, ask a follow-up that names the message, or open the cited email and read it yourself.
AI Inbox: To-Dos and Topics Without Reading Everything
AI Inbox is Gmail’s newest view, and it changes the unit of email from messages to work. Instead of a chronological list, it shows two sections: suggested to-dos, and topics to catch up on. The first pulls action items, deliverables and deadlines out of your mail. The second summarises the important updates across your conversations, such as a project decision or a travel change.
Each to-do explains itself in bold, such as a due date for a bill, and links back to the message it came from, so you can verify it in one click. Each topic summary groups the back-and-forth of a multi-message discussion into the latest decisions and status changes. You can mark a to-do done, remove a suggestion that is wrong, or open the underlying email for full context.
AI Inbox is still a beta, and its availability is narrow. Google lists it as available in the United States and in English only, and it needs Workspace smart features turned on. After you turn those on, Google says it can take a few hours, and up to seven days, for the first to-dos and topics to appear.
The rollout to paid Workspace accounts began in October 2026, with Rapid Release domains from October 12 and Scheduled Release domains from October 26, each taking up to 15 days to become visible. Google also says administrators have no separate control for AI Inbox: it appears for eligible users without an admin switch. If you do not see it yet, the rollout window, not a setting, is the likely reason.
Gmail Live: Talk to Your Inbox
Gmail Live turns inbox search into a spoken conversation on mobile. Instead of typing a question, you ask it out loud and hear a synthesised answer drawn from your own mail, with an email source card at every turn so you can open the message behind the answer.
The use cases are hands-busy moments: checking an order status on the way to a meeting, finding a flight gate while walking through an airport, or getting a manager’s latest update without stopping to read a thread. You can ask follow-up questions and change topic inside one conversation, the way you would with a person.
Gmail Live is rolling out to paid Workspace users on mobile, in English and in the United States, alongside AI Inbox. Like the side panel, it answers from your mail, which means the same verification rule applies: open the source card before acting on a time, a gate or a price.
Turn Gmail Work Into Docs, Sheets and Calendar Events
Gemini in Gmail does not stop at reading and writing mail. From the side panel you can create a Doc, a Sheet or a Slide with a single prompt: a meeting-notes agenda, an expense tracker with date, category, amount and notes columns, or a project tracker with task, assignee and deadline columns. The document opens in its own app for editing.
Scheduling works the same way. Ask Gemini to create a meeting, find an open slot, or reschedule an existing event, and it proposes times from your primary calendar. When an email contains event details, an Add to calendar button appears above the message, and Gemini extracts the details into a calendar event, asking for confirmation if it finds more than one event.
The panel can also manage tasks, including suggested to-dos drawn from chats and emails that need attention. Ask what tasks are due today, add a task from an email, or change a task’s date, and the panel handles it. Combined with AI Inbox, this is the closest Gmail gets to a workflow: mail in, organised work out, without manual copying.
Organise Your Inbox by Asking
The side panel can also act on your inbox in bulk. Ask it to archive all emails from a sender, label messages from a client as Important, mark unread messages from a colleague as read, or star a set of messages, and it presents the matching emails for confirmation before doing anything.
That confirmation step is the safety net, and it is worth using properly. Review the matching list before confirming, because a broad request can catch messages you did not intend. Once confirmed, you have 60 seconds to undo; after that, or after your next prompt, the action stands, though deleted mail can still be recovered from Trash for 30 days.
There are hard limits. Gemini can only apply labels that already exist in your account; it cannot create new ones. It cannot mark messages as spam, and if more than 10,000 threads match your request, it will not process it at all. For very large cleanups, narrow the request by sender and date range first.
Which Plan Unlocks What
Gmail’s Gemini features split across three tiers, and the split explains most “why don’t I see this” questions. On free personal accounts, Help me write, thread summaries and suggested replies are available, and eligible users get limited access to the wider Gemini set with monthly usage limits, with a warning as the limit approaches and an opt-out if they prefer not to participate.
Paid Google AI plans, Plus, Pro and Ultra, add inbox-wide question answering and Proofread, with higher usage limits as you go up. Ultra, the top tier, includes AI Inbox and the largest storage and quota allowances: Google lists 20 TB or 30 TB of storage depending on the specific Ultra plan, and five or twenty times the Gemini usage quota of Pro.
On the work side, Gemini features come with eligible Google Workspace plans, and availability varies by edition, language and region. If a feature is missing on a work account, check the edition first, then the language and region, before assuming it is broken.
Privacy Controls and Limits Worth Knowing
Google says your email content is not used to train its AI models, and that statement is the foundation of the privacy story for Gemini in Gmail. The practical controls sit closer to hand: smart features toggles govern whether AI Inbox and related features can use your mail, and the side panel’s settings include personalisation controls for what Gemini can draw on.
The panel’s source controls matter too. You can choose which locations Gemini searches, add specific Drive files as sources, and remove history from a conversation. Because the panel can reach into Drive and Calendar as well as Gmail, a vague prompt can pull from more than you intended, so naming the source in the prompt is good practice.
One more limit deserves emphasis: Gemini can make mistakes, and Gmail’s own help pages say so. Summaries drop caveats, extracted figures can come from the wrong message, and a confident answer is not a verified one. For anything that costs money, affects a deadline or goes to a client, the source message is the authority, not the summary.
Seven Prompts to Start With
First, for catching up: “Summarise this thread as bullet points, with open questions at the end.” The open-questions tail is what turns a summary into a briefing.
Second, for triage: “What are my action items from unread emails this week?” This is the fastest morning routine Gmail offers, and it pairs naturally with AI Inbox once that reaches your account.
Third, for finding things: “What did the supplier quote for delivery, and in which email?” Asking for the source message as part of the answer makes verification one click instead of a search.
Fourth, for drafting: “Draft a polite decline for Friday’s meeting, suggest next Tuesday, and keep it under four sentences.” Constraints on length and tone are what separate a usable draft from generic prose.
Fifth, for polishing: paste a rough draft, then ask Proofread to formalise it and shorten it. Running both refinements in sequence usually beats either alone.
Sixth, for organising: “Archive all emails from this sender older than 30 days, and show me the list first.” The “show me first” clause uses the confirmation step properly.
Seventh, for planning: “Create a sheet tracking the invoices mentioned in this thread, with date, vendor, amount and status columns.” This is where Gmail stops being an inbox and starts being the front end of your workflow.
What Gemini in Gmail Cannot Do Yet
Gmail’s AI is a strong reading, writing and triage companion, but it is not a reliable source of truth, and it is not an autonomous assistant. It cannot send mail on its own, it cannot create labels, it cannot mark mail as spam, and it cannot see secondary calendars. Bulk actions need your confirmation and expire their undo window in 60 seconds.
Availability is uneven by plan, language and region. AI Inbox and Gmail Live are still US- and English-only rollouts, Proofread and inbox-wide answering need paid plans, and some features arrive on work accounts months after consumer accounts. If a feature is absent, check the plan and the rollout window before troubleshooting anything else.
Used with those limits in mind, Gemini genuinely changes email: fewer threads read end to end, faster first drafts, and a morning triage that takes minutes instead of an hour. The skill is the same as with every Gmail AI feature: let it do the first pass, and keep the source message as the authority. For the same side-panel idea in the browser, see our guide to what Chrome AI can do.
Background
Gemini arrived in Gmail gradually, starting with drafting and summarising features, then expanding through 2026 to inbox-wide question answering, Proofread, and the AI Inbox and Gmail Live rollouts to paid accounts. The direction is consistent: email is becoming a place where work gets organised, not just a list of messages to read. You can browse the subjects we cover on our topics index.
Sources: Gmail Help: “Gemini in Gmail”; Google One Help: “AI Inbox help”.
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