Keep the insight. Lose the personal details.

Crux takes names, contact details and health details out of your recordings before it keeps anything, and its AI providers keep nothing at all.

See what Crux keeps

Tick what a participant says. Crux keeps the point, not the person.

What the participant shares

Tick what they say. Change anything.

What Crux keeps

7 details swapped out

Speaker B · 04:12

Hi, I’m [PERSON_NAME]. You can email me at [EMAIL_ADDRESS]. I came in because of my [MEDICAL_CONDITION], so the frames had to fit new lenses. My insurance number is [HEALTHCARE_NUMBER].

[PERSON_NAME] said the old frames pinched. Write to [EMAIL_ADDRESS] about her [MEDICAL_CONDITION] check.

A made-up example that runs in your browser; nothing you type is sent. In Crux, the transcription service finds these details in the recording itself.

Built in, not bolted on

These happen on their own, on every plan, for every project.

  • Personal details come out of recordings

    Before a transcript reaches Crux, names, contact details, addresses, dates of birth, health conditions, medicines, and money and ID numbers are swapped for what kind of detail they were. Summaries, findings and quotes are made from that text. A transcript that comes back with them still in is refused.

  • The transcription copy is deleted

    Once Crux has the transcript, it asks the transcription service to delete its copy of the transcript and of the audio it was sent.

  • AI providers keep nothing

    Every request that carries your content goes only to AI providers that do not store or train on what they receive. If none is available, the request stops instead. Crux does not train models on your content.

  • Only the people you invite

    Comments, approvals and research are shown only to signed-in people invited to the project, checked on the server for every request. Viewers look, reviewers comment, approvers approve.

  • Files are stored privately

    Uploads live in private storage, never on public links, and open only through Crux for people with access.

  • Delete it whenever you like

    Deleting an item removes it and its stored file. Ask us and we delete your account and everything stored with it. Crux never stores your password.

Who runs which part

Crux runs on a few well-known services, each for one job.

Vercel
Hosting and private file storage
Neon
Database
Clerk
Sign-in and accounts
OpenRouter
AI models, routed to providers that keep nothing
AssemblyAI
Transcription, with personal details removed
Resend
Email notifications
Tavily
Web search, when a request needs published sources

Good to know

  • Written notes and documents you upload are kept as written. Take names out first.
  • The original recording stays in your project, private to the people you invite, so clips can play. Delete it when you no longer need it.
  • The swap is automatic, so it can miss a detail said in an unusual way. Read a transcript before you share it outside your team.

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