How to Use Google Duet in Gmail

The Help Me Write button lets Google Duet draft emails and replies for you

What to Know

  • Compose a new email, or open a reply, and click Help Me Write
  • Type a prompt that describes the email you want Duet to write, and then click Create
  • Use Recreate and Refine to adjust the email, then click Insert when you’re satisfied with the results.

This article explains how to use Google Duet in Gmail, including creating new emails and using it to respond to a message. While you can’t use Google Gemini in Gmail, Duet is an advanced Google AI that does work directly in Gmail and Workspace apps like Docs.

How Does Google Duet Work in Gmail?

Google Gemini is a standalone artificial intelligence (AI) chatbot similar to large language model systems like ChatGPT and the Bing Chatbot, so you can’t use it directly in Gmail. It is capable of outputting generated text to Gmail, but Google uses their Duet AI to provide writing assistance in Gmail and Workspace apps.

In Gmail, Duet can draft new emails, write replies, proofread an email you wrote yourself, and perform various other functions based on the prompts you enter.

If you don’t see the Help Me Write prompt in Gmail, you cannot access the feature yet.

Here’s how to use Google Duet in Gmail:

  1. Open Gmail and click Compose to start a new email.

    Compose button highlighted in Gmail.
  2. Click the Help Me Write button (pencil icon).

    The Help Me Write button (pencil icon) highlighted in Gmail.
  3. Type a prompt describing what Duet wants to write, and click Create.

    Create highlighted in the Google Bard interface in Gmail.
  4. Wait while Duet composes the email.

    Google Bard writing an email in Gmail.
  5. Click Recreate if you want Duet to start over from scratch, or Refine for options that will adjust the current email.

    Recreate and Refine highlighted in the Bard interface in Gmail.
  6. Click Formalize to rewrite using more formal language, Elaborate to go into more depth, Shorten to summarize the email in fewer words, or I’m Feeling Lucky for a randomized rewrite.

    Formalize, Elaborate, Shorten, and I'm Feeling Lucky highlighted in the Bard interface in Gmail.
  7. When you’re happy with the results, click Insert.

    Insert highlighted in the Bard interface in Gmail.
  8. Highlight any placeholder text, and replace it with the correct details.

    Highlighted placeholder text generated by Bard in Gmail.
  9. To rewrite a section of the email, highlight the section and click the Help Me Write button.

    The Help Me Write button (pencil icon) and selected text highlighted in Gmail.
  10. Click Formalize, Elaborate, Shorten, or I’m Feeling Lucky to rewrite the highlighted section.

    Formalize, Elaborate, Shorten, and I'm Feeling Lucky highlighted in the Bard interface in Gmail.

    The highlight will no longer be visible at this point.

  11. When you’re happy with the result, click Insert.

    Insert highlighted in the Bard interface in Gmail.
  12. You will now have both the original email and the adjusted one. In this example, only the third paragraph was rewritten. Select and delete the original version if you’re happy with the results.

    Redundant Bard-generated text selected for deletion in Gmail.
  13. Make any necessary changes or adjustments, address the email, and send it.

    Bard generated text in Gmail.

    You can continue using the Help Me Write button to make additional adjustments or add more content until you’re satisfied with the results.

How to Use Duet to Reply in Gmail

In addition to drafting new emails, Duet can simplify the process of writing replies. You can have it write a framework for you to fill out with the necessary details or information quickly, have it write an entire reply, or write a specific part of the email.

Here’s how to use Duet to reply in Gmail:

  1. Open an email in Gmail, and click Reply.

    Reply highlighted in Gmail.

    Gmail provides short, automatically generated replies you can select here, but this process will use Duet to write more in-depth replies.

  2. Click the Help Me Write button (pencil icon).

    The Help Me Write button (pencil) highlighted in Gmail.
  3. Enter a prompt that describes the reply you want Duet to write, and then click Create.

    Create highlighted in the Bard interface in Gmail.
  4. If you’re satisfied with the email, you can click Insert.

    Insert highlighted in the Bard interface in Gmail.

    Click Recreate to have Duet start over or Refine to adjust the already written reply if you aren’t happy with the results.

  5. Replace any placeholder text with the correct details, and send the reply.

    An email reply generated by Bard in Gmail.

What Can Google Duet Do in Gmail?


Google Duet acts as a writing assistant in Gmail, where it can help you write and reply to emails. It works the same in Gmail as on the Duet website, and the implementation is similar to how you use Duet in Google Docs.

This feature adds a Help Me Write button below the formatting options, accessible when writing new emails and replying. Clicking the Help Me Write button creates a prompt entry field where you can tell Duet precisely what you want it to write. You can have it write a thank you or condolences letter, draft a letter to customer service about a product you’re having trouble with, or just about any other kind of letter that you might need to write.

While Google Duet has no context to generate replies, you can provide the context when you craft your prompt. For example, if you’re replying to an invitation, you could ask it to write a reply to politely turn down an invitation and give a specific or general excuse.

In general, Google Duet is better as a writing assistant than as a writer in its own right. The feature includes several options for rewriting or adjusting the content it generates. However, you’ll typically still need to replace the placeholder text and make other adjustments to any emails it writes.

FAQ
  • How do I get rid of dark mode in Google Gemini?

    If you're using the main Gemini interface, it may open in a dark mode. You can switch to light mode by clicking Use Light Theme in the bottom-left corner of the screen.

  • Is there a Gemini app from Google?

    Google does not currently offer a standalone app for Gemini. You can only use the interface on the web.

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