How to search inside a long video or lecture
Find the one moment you need in a three-hour recording — by meaning, not just keywords — and jump straight to it.
Make the recording searchable in one click
Open the lecture or long video and click Silestis. It returns a timestamped transcript you can search — type any phrase and jump to the moment it was said, instead of dragging the scrubber back and forth.
Search by meaning, across everything
Semantic search finds the right moment even when the exact words differ — ask "where does she explain gradient descent?" and land on the answer. Across a whole semester or a video library, it searches every transcript at once, so you find the needle without re-watching.
FAQ
Can I search across many recordings at once?
Yes. Semantic search spans your whole library, finding the relevant moment by meaning across hundreds of transcripts — not just exact keyword matches.
Does it handle multi-hour recordings?
Yes. Long-form transcription handles multi-hour videos, and paid plans support recordings up to 2–10 hours depending on the plan.
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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