YouTube Summary with ChatGPT & Claude Review — One-Click AI Summaries of Any YouTube Video
YouTube Summary with ChatGPT & Claude adds a summary button to every YouTube video page. Click it and the video's transcript is sent to an AI model — ChatGPT, Claude, or Gemini — which returns a structured summary in seconds. A 30-minute competitor video that would take half an hour to watch can be understood in two minutes. It was built by Glasp and has millions of installs.
Install on Chrome Web Store →Key Features
The extension adds a transcript and summary button to every YouTube video page. Clicking it opens the full transcript in a sidebar alongside a prompt to send it to your chosen AI model, which generates a structured summary with key points.
You can choose between ChatGPT, Claude, Gemini, and other AI models depending on which you have access to. The extension sends the transcript as a prompt — so if you prefer a specific model's output style, you can direct it there.
The full transcript is available to read as plain text alongside the summary. This is useful for extracting specific quotes or sections that the AI summary might have compressed — you can read the relevant part rather than the whole video.
Summaries can be formatted as bullet points, paragraphs, or as a custom prompt you define. Creating a template that always pulls key takeaways, timestamps for important moments, and a one-sentence conclusion gives consistent output across multiple research sessions.
Who Is It For
Creators who use YouTube for content research — watching competitors, studying tutorials, reviewing interviews for reference material — will save substantial time. Watching a video to extract three key points used to require watching the whole thing. This reduces that to under two minutes.
Videos without auto-generated or manual captions cannot be summarised — the extension relies on the YouTube transcript system. Very short videos (under five minutes) don't need summarising and the extension doesn't add much for casual viewing where the full watch experience matters.
Pros and Cons
- ✅ Free with no usage limits — uses your existing AI account
- ✅ Works on any video with available captions
- ✅ Full transcript view alongside summary for detailed reference
- ❌ Requires an active ChatGPT, Claude, or Gemini account to generate summaries
- ❌ Accuracy depends on transcript quality — auto-generated captions with errors produce worse summaries
Pricing
The extension itself is completely free. Summary generation uses your existing AI account — ChatGPT free tier, Claude free tier, or Gemini free tier all work. No additional credits or payments are required by the extension.
Summary
One of the highest-value free extensions for YouTube-heavy creators. The time saved on competitor research alone justifies installation. Worth using immediately if you regularly watch videos for information extraction rather than entertainment. The only requirement is having an AI account, which most creators have already.