A second brain that's already thinking before you are.
Keep notes, recordings and sources together. Ask Lumi to help retrieve context, then check the original material before acting.
Illustrative interface with fictional content.
The whole loop, in four scenes.
Ask the printer about the invoice discrepancy before Friday. And check whether Marta ever got the revised timeline.
Talk, paste, or clip. A voice memo becomes a note on its own — no folders, no tags, no decisions at capture time.
Read the transcript
- 1 · CaptureTalk, paste, or clip. A voice memo becomes a note on its own — no folders, no tags, no decisions at capture time.
- 2 · RecallAsk in your own words. The answer quotes your material — every claim carries the note it came from.
- 3 · PreparedBefore your first meeting, the context is already assembled — what you owe whom, and what you're walking into.
- 4 · An agent actsAgents run on their own triggers and write the result where you work. Included in the plan, no per-run charge.
Confirm your place. Sharing moves you forward.
Confirmed referrals can improve your queue position. A queue position records interest; testing access and timing still need an invitation.
Get in line
Enter your email and follow the confirmation link. After confirmation, you can view your queue details and personal referral link.
Pass the link along
Send it to the person you know with too many notes and no system for them.
+1 place per confirmed signupWatch for an invitation
An invitation provides access when testing opens for you. Free while you evaluate.
It captures. It recalls. It arrives prepared.
Most tools stop at storage and ask you to be the librarian. tentus does the librarian's job so you can do yours.
Friction is the enemy.
Capture notes and voice, import supported text, and connect services enabled for your account. Check that the sources you need have arrived.
- Voice processing depends on successful upload and transcription
- Save first; review and connect useful material afterward
Answers from your own material.
Ask Lumi about available workspace material, then inspect the retrieved sources. Web research is a separate workflow.
- Check citations against the original source
- Missing evidence can leave a question unanswered
It arrives prepared.
Meeting preparation uses connected calendar context and selected saved sources. Review commitments, changed dates and missing facts before the call.
- Today looks for the next timed meeting within 18 hours
- Email preparation needs the digest opt-in
The short answers.
When do seats open?
We are preparing for pre-beta testing. Joining and confirming the waitlist records your interest; it does not guarantee an invitation or start date.
Do I have to share to get in?
No. Your spot is yours whether you share or not. Your personal link carries just your referral code — whoever opens it sees the normal waitlist page, and each confirmed signup through it moves you up one place.
What does it cost?
Nothing while you evaluate. Pro is $12/month and Business is $20/month, and the Free plan is permanent. Everything you put in is exportable whether you pay or not.
Where does my data go?
Into your own workspace, encrypted at rest. Lumi only reads what you've connected and never trains on your material. Disconnect a source and its content goes with it.
Does it replace my notes app?
You can evaluate tentus alongside your current notes app. Start with a small compatible text export and check import quality before moving more material.
Start thinking with a quieter notebook.
Get in line now. Sharing is optional — your place is yours either way.
Join the waitlist