Gmail Smart Features and Personalization: What Turning It Off Changes

The Gmail Smart Features and Personalization setting is a master toggle that governs a whole family of AI-powered capabilities. Most people find it after noticing a new prompt in Gmail, after a privacy-conscious colleague mentions it, or after reading about a data controversy and wondering exactly what they have agreed to. The question behind the search is almost always the same: what exactly stops working if I turn this off, and is it worth it?

The short answer: Smart Compose, Smart Reply, email Nudges, and AI Overviews all stop. Gmail also stops using your email content to personalize other Google products, provided you disable the second linked toggle too. Gmail search and inbox category tabs continue to work exactly as before. This guide maps the full consequences, gives you the steps to reach the setting on every platform, and explains what to do when the toggle does not seem to take effect.

What stops working when you turn off Gmail Smart Features and Personalization#

The setting controls features that rely on Gmail reading your message content in real time to generate suggestions. Disable it and those features stop. The table below maps every capability that is and is not affected — including two that often get conflated with the toggle but are entirely unrelated to it.

The two sub-settings and what each controls#

This is where most walkthroughs stop short. The Smart Features setting is actually two independent toggles displayed one below the other, and missing the second is the most common mistake.

The first toggle is Smart features and personalization in Gmail. It controls whether Gmail reads your message content to power Smart Compose, Smart Reply, Nudges, and AI Overviews within the Gmail interface. Disabling it removes all four.

The second toggle is Smart features and personalization in other Google products. It controls whether your Gmail content is used beyond Gmail — for example, whether Google Calendar reads a message to suggest an event, or whether other Google services adapt based on what is in your inbox. This toggle appears directly below the first.

Disabling the first does not automatically disable the second. The two toggles are independent. If you want to stop your email content from being used anywhere in Google's ecosystem, you need to uncheck both separately.

How to turn off Smart Features and Personalization in Gmail#

The steps below apply to Gmail on the web in any modern browser — Chrome, Firefox, Safari, or Edge. Mobile and Workspace paths are in the platform table in the next section.

1. 1

   Open Gmail and click the gear icon

   The gear icon sits in the top-right corner of the inbox. From the quick settings panel that opens, select See all settings. The quick panel itself does not contain the Smart Features option.

2. 2

   Stay on the General tab and scroll down

   General is the default tab. Scroll roughly two-thirds down the page, past the signature and vacation responder sections. The Smart features and personalization section appears below them.

3. 3

   Uncheck the first box: Smart features and personalization in Gmail

   The checkbox label describes what Gmail will analyze. Unchecking it disables Smart Compose, Smart Reply, Nudges, and AI Overviews inside Gmail.

4. 4

   Uncheck the second box: Smart features and personalization in other Google products

   This box appears immediately below the first. It controls whether Gmail content personalizes other Google services such as Calendar. The two toggles are independent — disable this one separately if you want full scope.

5. 5

   Click Save Changes at the bottom of the page

   Gmail reloads after saving. Smart Compose suggestions, Smart Reply chips, Nudge banners, and AI Overviews stop appearing immediately. If any persist, do a full browser reload.

Platform differences: web, iOS, Android, and Google Workspace#

The setting exists on every platform but the path to it varies. On mobile it sits a level deeper than on the web. On managed Google Workspace accounts, an admin policy can lock or override the toggle entirely.

Does turning off Smart Features disable Gmail search or inbox tabs?#

Two capabilities are commonly assumed to be linked to this setting, and neither is.

Gmail search uses a separate indexing and retrieval system. The Smart Features toggle controls AI features that read message content in real time to generate suggestions — it has no connection to how Gmail indexes your mail or how the search bar retrieves results. After disabling Smart Features, full-text search, search operators, and filters all continue without any change.

Inbox category tabs — Primary, Social, Promotions, Updates, Forums — are equally unaffected. They predate Gmail's AI features and run on a classification layer that does not depend on the Smart Features setting. Mail continues to sort into tabs exactly as before.

The visible changes are specific: the compose window loses ghosted Smart Compose suggestions; thread view loses one-click Smart Reply chips; the inbox loses Nudge banners; and long threads lose the AI Overview summary panel at the top of the conversation.

What to do when the setting does not take effect#

Saving the setting applies changes on the next page load. If features keep appearing after saving, one of the following is usually the cause.

• Reload the Gmail tab after saving. Suggestions from the current session may persist until the page is refreshed.
• Check whether the account is managed. On Google Workspace, an administrator can lock Smart Features on at the domain level. The toggle will be greyed out or revert when locked. Contact your IT administrator if this applies.
• Confirm you changed the setting on the correct account. Multiple signed-in Google accounts each carry independent settings. Change the toggle for each account separately.
• On mobile, verify the in-app toggle matches the web setting. In some app versions they apply independently. If you changed one, check that the other reflects the same choice.
• For the AI Overview panel on long threads, a full page refresh may be needed even after the setting is saved — the panel can persist through the remainder of the current session.

A faster way: an inbox that starts private by default#

Most people disable Gmail's Smart Features because they want AI assistance without their inbox content feeding Google's broader data ecosystem. The setting removes the AI entirely rather than replacing it with something better-controlled.

We build AI Emaily, an AI-native email client that connects Gmail alongside any other provider — Outlook, iCloud, Fastmail, Proton, IMAP — and handles your inbox with AI triage, drafting, and follow-up handling. AI Emaily does not train on your mail and does not pass your content to other services. Privacy is the default. The voice the assistant drafts in comes from a user-set Personal Context brain and per-client profiles you control — not a model trained on your sent history.

If you want AI assistance without the trade-off that sent you looking for the off switch, AI Emaily offers a 7-day free trial. See what it covers at aiemaily.com, or compare plans at aiemaily.com/pricing.