# Keyboard shortcut to summarise blog posts, PDFs, YouTube videos and Google Docs

Published: 2026-04-08T00:00:00.000Z
Canonical: https://wow.pjh.is/journal/such-summary

I've just released [Such Summary](https://chromewebstore.google.com/detail/such-summary/bjjhochjjajendoblpiiiebpmdjkcfcd): a browser extension for summarising blog posts, PDFs, YouTube videos and Google Docs.

![Such Summary Chrome Web Store screenshot](https://wow.pjh.is/static/images/blog/such-summary-cws-screenshot-poster.jpeg)

The summarisation prompts ask Claude to:

* Assume the reader is PhD-level, well read in AI/ML, EA, longtermism, philosophy, and adjacent domains.
* Use standard acronyms wherever possible (and do not define them).
* Elide obvious contextual filler or hand-holding.

The prompts can be customised in settings.

This was previously one of the most-used features of [my personal browser extension](https://wow.pjh.is/journal/ph-mods). Try it, and [let me know](mailto:wow@pjh.is) how you get on! [^1] [^2]

[^1]: Over the past months, I've found that Claude models consistently beat others for high-fidelity summarisation. Sonnet takes roughly as long as Opus for a slightly worse result, so its Opus for "best quality" and Haiku for "fast". I tried Gemini Flash 2.5 and Llama on Groq for near-instant summaries—fine for basic news articles, but not good for other stuff.

[^2]: The extension source code is [here](https://github.com/HartreeWorks/extension--such-summary).