YouTube 600x — Knowledge at 600× Speed.

Hover over a video to see an AI summary and save time before opening it.

Tired of clicking into YouTube videos that turn out to be a waste of time? YouTube 600x shows you an AI-generated summary the instant you hover over any video thumbnail — so you can decide to watch, save, or skip in seconds, without ever pressing play. The problem it solves: you click a video hoping it delivers, then bail two minutes in. Multiply that across a week and it's hours gone. YouTube 600x replaces click-and-hope browsing with a quick, informed glance. What it does: • Instant AI summaries on hover — no clicking, no waiting • Six signal types that surface each video's key takeaway, tone, and real substance • Works everywhere a thumbnail appears — the homepage, search results, channel pages, and watch-page recommendations • Nine languages — read summaries in whatever language you prefer • Summary caching — videos you've previewed before load instantly • Custom focus — tell the extension what matters to you, and summaries highlight exactly that Why install it: YouTube 600x turns endless scrolling into confident decisions. Most take under five seconds. You watch only what's genuinely worth your time and skip the filler before it costs you anything. It works immediately on youtube.com — no account needed to get started. The free plan includes 10 summaries per day. If you preview videos constantly, Pro and Max plans unlock thousands of summaries per month. Install YouTube 600x and start browsing smarter today.