Security & Privacy

Private by design. EU storage.

Your recordings are sensitive. Silestis combines EU-configured storage, encryption, and controlled AI processing for GDPR-conscious workflows.

EU storage and controlled processing

Silestis keeps account data, transcripts, and retained playback media inEU-configured storage. Transcription and other AI features use vetted providers under data processing agreements and appropriate international transfer safeguards. Some AI processing may take place outside the EU; details are documented in our Privacy Policy.

Source files deleted by default

Once a transcription finishes, the source audio file is deleted by default. What stays in your account is the useful output — the transcript, AI notes, chapters, flashcards, and chat history. If you explicitly enable Keep playback copy, a compressed playback version is retained within your plan limits.

Your content is not our training data

Silestis does not sell your content or use it to train its own models.Selected AI providers process content only to provide the feature you request, subject to their data processing terms described in our Privacy Policy.

Encrypted and access-controlled

Data is encrypted in transit. Transcripts are tied to your account, and anything you share is reachable only by the people you explicitly share a link or folder with. See our full FAQ or jump straight to pricing.

FAQ

Security & privacy questions

Where is my data processed and stored?

Account data, transcripts, and retained playback media use EU-configured storage. AI processing may use vetted providers outside the EU under data processing agreements and appropriate transfer safeguards.

Are my uploaded files kept?

By default, source media is deleted after transcription completes. If you explicitly enable Keep playback copy, a compressed playback version is retained within your plan limits.

Do you use my recordings to train AI models?

Silestis does not sell your content or use it to train its own models. Selected AI providers process content only to provide the requested feature, subject to their data processing terms described in our Privacy Policy.

Is my data encrypted?

Yes. Data is encrypted in transit. Access to your transcripts is gated to your account, and shared links are only accessible to people you explicitly share them with.

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.

Get the Safari Extension
Mac app includes the Safari extensionPrivacy controls built in