Silestis vs Sonix
Two AI transcription platforms — one focused on the editing workflow, one on making recordings answerable.
Sonix is an established AI transcription platform: upload media, get a transcript, and polish it in a capable in-browser editor, with translation and subtitle tools. Pricing is per hour of audio — pay-as-you-go or via subscription.
Silestis covers the same transcription core and leans into understanding: a browser extension that transcribes any web video (YouTube and 1800+ sites, no upload needed), AI answers with clickable [mm:ss] timestamps, semantic search across every recording, and study tools like notes, chapters, and flashcards — on flat monthly plans.
| Silestis | Sonix | |
|---|---|---|
| Transcribe uploads with AI | ||
| Transcribe any web video (YouTube, 1800+ sites) | Yes | Upload/import-based |
| Browser extension for any video page | ||
| Timestamped AI answers ([mm:ss]) | Yes | AI analysis/summaries |
| Semantic search across all recordings | Per-file & folders | |
| Notes, chapters & flashcards (study tools) | Yes | Summaries & chapters |
| In-browser transcript editor | Basic | Strong |
| Pricing model | Free tier, flat plans from €8.99/mo | Per-hour + subscriptions |
| Languages | 100+ with translation | Many with translation |
When to use which
- Choose Silestis to build a searchable, answerable library from web video, lectures, podcasts, and uploads — at a flat monthly price.
- Choose Sonix if your workflow centers on polishing transcripts in a browser editor, or you transcribe occasionally and prefer paying per hour.
See also: vs Rev · vs TurboScribe · vs Notta. Or explore podcasts and lectures.
Comparison based on publicly available information; competitor features may change over time.
Sonix — FAQ
Is Silestis a Sonix alternative?
Yes. Both transcribe audio and video with AI in many languages. Silestis adds a browser extension for any web video, timestamped AI answers, semantic search across all your recordings, and study tools — on flat monthly plans instead of per-hour pricing.
How does pricing differ?
Sonix charges per hour of audio, pay-as-you-go or with a subscription. Silestis uses flat monthly plans starting at €8.99 with a free tier of 3 transcriptions — easier to predict if you transcribe regularly.
What does Silestis do that Sonix doesn't?
Grab any web video from the page you're watching it on via the browser extension, ask questions and get answers with clickable [mm:ss] timestamps, search semantically across every transcript at once, and generate flashcards for studying. Sonix's AI analysis covers summaries and chapters too — the difference is the cross-recording, study-oriented workflow.
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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