How to ask questions about any online video
Turn any video or podcast you find online into something you can question — with answers that cite the exact moment.
From watching to asking
Whatever you're watching — a YouTube video, a lecture, a webinar, or a podcast — click Silestis and you can ask it questions. "What are the key takeaways?" "What did they decide?" You get an answer with clickable [mm:ss] timestamps, like ChatGPT for any video or podcast you find online. Prefer a link? 1800+ sites are supported by paste.
Answers you can trust and verify
Because every answer is anchored to a timestamp in the transcript, you can jump back and confirm it in the source rather than taking it on faith. The transcript is the substrate; the product is the answers, summaries, and search on top.
See it for YouTube videos, podcasts, and lectures.
FAQ
Which sites does it work on?
The extension works right on the page you're watching, and 1800+ sites are supported by link — including YouTube, TikTok, Vimeo, Instagram, and SoundCloud.
Do the answers cite where they come from?
Yes. Answers include clickable [mm:ss] timestamps that jump to the exact moment in the video, so you can verify every claim against the source.
The next lecture your AI tools can't open — Silestis can.
Open the video, click Silestis, done — a summary, timestamped answers, and notes, right on the page. Even when there's no transcript.
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