How to create a Gem in Gemini

Learn how to create a custom Gem in Gemini: name it, describe it, write instructions, save it, and start chatting with your new Gem right away.

Quick answer

To create a Gem in Gemini, open the Gem manager and click New Gem. Give the Gem a name, add a short description, and write instructions telling it how to behave. Click Save, then choose Start Chat to try it. The Gem is then added to your Gem manager page.

Steps at a glance

  1. Open the Gem manager and click New Gem
  2. Type a name for your Gem
  3. Add a short description
  4. Write instructions for how the Gem should respond
  5. Click Save
  6. Choose Start Chat to try your Gem

Interactive demo

Loading demo…

Summary

A Gem is a custom version of Gemini that follows instructions you write once. It saves you from retyping the same setup prompt in every chat, so repeat tasks get consistent results.

Step-by-step guide

  1. Step 1

    Click New Gem

    Open the Gem manager, where Google's premade Gems and your own Gems are listed. Under My Gems, click New Gem to open the Gem editor.

  2. Step 2

    Name your Gem

    Click the Name field, which shows the prompt "Give your Gem a name", and type a clear name. This example uses "Release notes editor". The preview on the right updates with the name.

  3. Step 3

    Describe what it does

    Click the Description field and write one sentence about what the Gem does. For example, "Turns rough changelog notes into clear release notes." The description appears in the preview.

  4. Step 4

    Write the instructions

    Click the Instructions box and describe how the Gem should behave: its role, the format you want, and any limits. Be specific, because the Gem follows these instructions in every chat.

  5. Step 5

    Save the Gem

    Click Save at the top right of the editor. Gemini shows a confirmation that the Gem was created and added to your Gem manager page.

  6. Step 6

    Start chatting with your Gem

    In the confirmation dialog, click Start Chat to open a conversation with the new Gem. You can also click Share from the same dialog.

Why this matters

You keep pasting the same setup prompt into new chats to get release notes in your team's format. Saving it as a Gem means you write the instructions once, then start a chat with the Gem whenever you need it.

Frequently asked questions

  • Where do I find my Gem after saving it?

    Your Gem is added to the Gem manager page, listed under My Gems.

  • Can I try the Gem before saving it?

    Yes. The Preview panel next to the editor lets you ask the Gem something while you edit its instructions.

Create interactive demos like this one — free, no coding required.

Start for free →