What are Gems in Gemini and how do I create one?

Gems are customised versions of Gemini that you set up for a specific purpose. You give a Gem instructions about its role, tone and task, and optionally attach reference files. From then on, you can open that Gem and it behaves the same way every time, without you repeating your instructions.

They are similar to custom GPTs in ChatGPT and Projects in Claude.

To create a Gem:

1. Open Gemini on the web and look for the Gems option, often in the sidebar or a Gem manager section.
2. Choose to create a new Gem.
3. Give it a clear name, such as "Blog Editor" or "Maths Tutor Class 8."
4. Write instructions describing what it should do, for whom and how.
5. Optionally add files, such as style guides, product information or syllabus documents.
6. Test it in the preview, refine the instructions and save.

Google also provides some premade Gems for common tasks, such as a learning coach, a brainstormer and a coding partner, which you can use or copy and customise.

Example instructions for a social media Gem:

"You help a small bakery in Varanasi create Instagram and WhatsApp posts. Write in friendly, simple English with occasional Hindi phrases. Keep captions under 60 words, include one call to action, and suggest three relevant hashtags. Never use more than two emojis. Prices are in rupees."

Example for a study Gem:

"You are a patient tutor for a Class 10 CBSE student. Explain science concepts simply with everyday examples. After explaining, ask one question to check understanding. Do not give direct answers to homework; give hints instead."

Tips for effective Gems:

Be specific about audience, tone, format and length.
Include what the Gem should avoid.
Add an example of a good output if possible.
Keep each Gem focused on one job.
Update the instructions when you notice repeated problems.

Gems can be shared with others in some account types, which is useful for teams or families who want the same assistant.

As always, avoid putting confidential information into Gem files unless your account's data settings and your organisation's policies allow it.

If you find yourself typing the same setup instructions into Gemini repeatedly, that is exactly what a Gem is for.