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Tools · Level beginner

Gemini Gems: build your custom assistant step by step

How to create, use, edit and share Gems in Gemini, add Drive files or NotebookLM notebooks, requirements and limits.

By Cognenza editorial team · Updated · 2 min read · Sources cited

A Gem is a custom Gemini: fixed instructions (and optional documents) you reuse for one task. Like ChatGPT custom instructions, but one assistant per task. New to Gemini? See the Gemini guide.

Create a Gem

  1. On a computer, go to gemini.google.com.
  2. Open sidebar > Gems > New Gem.
  3. Enter a name and instructions; you can use Use Gemini to re-write instructions.
  4. Optional, Knowledge > Add files: upload, add from Drive or a NotebookLM notebook.
  5. Save. It also appears in the mobile app and Workspace side panel.

Good to know

Drive files stay up to date; you can disable knowledge citations; Gems can be edited, deleted and shared; they don’t work with Gemini Live. Don’t upload sensitive data.

Frequently asked questions

What is a Gem?

A version of Gemini with saved instructions (and optional files) to reuse for repeated tasks.

Do Gems work in Gemini Live?

Not currently, according to Google.

If I edit the Drive file, does the Gem update?

Yes, it uses the latest version of the Drive file.

Glossary · Tools

Keep reading

Sources

Official sources are linked in their original language.

  1. Utilizar Gems en las aplicaciones de Gemini — Google

Change log

  • : First published with Google’s official help as checked that day.

Educational content, prepared with the help of AI tools, with sources cited. It is not a substitute for professional advice. Tools change fast: if you spot something out of date, write to us at contacto@cognenza.com. How we work.