Silestis vs Otter.ai
Both transcribe speech — but they're built for different jobs.
Otter.ai is a meeting-first assistant: it joins your calls, records them, and produces live notes and summaries. It's a strong fit when your core need is capturing meetings in real time.
Silestis is built for supported audio and video sources — paste a YouTube, Vimeo, or podcast link, or grab a video with the browser extension. You get a timestamped transcript you can search and chat with, plus notes, chapters, and flashcards. If your knowledge lives in lectures, webinars, and web video rather than calendar meetings, that's where Silestis is stronger.
| Silestis | Otter.ai | |
|---|---|---|
| Built around | Supported web video & audio | Live meetings |
| Transcribe supported web videos (YouTube, many supported sites) | Yes | No |
| Browser extension for supported video pages | Yes | Meetings only |
| Timestamped AI answers ([mm:ss]) | Yes | Chat |
| Joins & records live meetings (bot) | No — not a meeting bot | Yes |
| Speaker diarization | ||
| Notes, chapters & flashcards | Yes | Meeting summaries |
| Languages | Broad; varies by mode | Fewer |
| Data storage | EU-configured | US |
When to use which
- Choose Silestis for web video, lectures, webinars, and podcasts — with timestamped answers where available and EU-configured storage.
- Choose Otter if you mainly need a bot to join and record live meetings.
See also: vs NotebookLM · vs Notta. Or explore use cases for webinars and lectures.
Comparison based on publicly available information; competitor features may change over time.
Otter.ai — FAQ
Is Silestis a good Otter alternative?
If your audio lives in web videos, lectures, podcasts, and uploads rather than live meetings, yes. Silestis transcribes supported web videos, gives timestamped answers where available, and uses EU-configured storage. Otter is stronger if your main need is a bot that joins and records live calls in real time.
Does Silestis join my meetings like Otter?
No. Silestis is intentionally not a meeting bot. You upload a recording or paste a link, which keeps it flexible across any audio or video — not just calendar meetings.
Where is my data stored?
Account data, transcripts, and retained playback media use EU-configured storage. AI processing may use vetted providers outside the EU under appropriate safeguards. Source media is deleted after transcription by default.
Start from the supported lecture page you already use.
Open the video and click Silestis to start a transcript, summary, and notes workflow on the page. Timestamp-capable modes can also return cited answers, including when no source transcript exists.
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