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By task · Level beginner

Summarise YouTube videos with AI: Gemini step by step

How to ask Gemini for a YouTube video summary or a specific detail, the requirements in Google’s official help and what it can’t see.

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

A 40-minute tutorial and you only need one step? Gemini can summarise a YouTube video or answer a specific question about it.

What Google says

According to Gemini’s official help, Gemini uses public YouTube information to find videos, playlists and channels and to understand a video’s content. Requirements:

  • Be signed in to Gemini.
  • Have Keep Activity on. If it’s off, the feature isn’t available.

Bear in mind: with Keep Activity on, your chats are saved to your account (Gemini privacy).

Step by step

  1. Open gemini.google.com or the app.
  2. Paste the video link with your request, or ask: “Find videos on how to bleed a radiator. Summarise the first one.”
  3. Use this page’s prompt for key points with timestamps.
  4. Ask follow-ups: “Which tool does he use at minute 3?”

Its limits

  • If information is only shown (a chart, a gesture) and not said, the summary may miss it.
  • It can be wrong or invent details (hallucinations). For quantities, medicines, money or safety, go to the cited minute and check.

Frequently asked questions

Do I need to turn anything on?

According to Gemini help, you must be signed in with “Keep Activity” on; if it’s off, the feature isn’t available.

Does it understand what’s on screen?

Gemini uses public YouTube information. If the answer depends on something only shown, not said, check the video.

Does it work with any video?

It works with public YouTube information; private or unlisted videos may not be available.

Glossary · By task

Keep reading

Sources

Official sources are linked in their original language.

  1. Buscar contenido de YouTube y hacer preguntas sobre él en las aplicaciones de Gemini — Google
  2. Does ChatGPT tell the truth? — OpenAI

Change log

  • : First published with Gemini’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 Tools change fast: if you spot something out of date, write to us at contacto@cognenza.com.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.