PRIVACY

Where your data goes.

What stays in your browser, what gets sent, and what gets saved.

The path

One message, and who can read it

Your browserSees your words
Undergrove relaySees size, time and account
Tinfoil enclaveSees your words while answering
Enclave verified, request sealed
  1. Your words are plain text only in your own browser tab.

  2. Before anything leaves, the browser verifies the enclave and encrypts the request to its key.

  3. Our relay checks your account and allowance, then forwards bytes it can’t open.

  4. Inside the verified enclave the request is decrypted, and the model reads it and answers.

  5. The answer returns encrypted through the relay, and your browser decrypts it.

Step 1 of 5

Who sees what

Three parties, five kinds of data

Who can see what
UndergroveRelay and serversTinfoilThe model’s enclaveVercelOur host
Workspace messagesYour browser encrypts each message to the verified enclave; our relay passes on bytes it can’t open.Decrypted only inside the enclave your browser checked, to answer it.Workspace requests pass through Vercel encrypted.
Developer API requestsOur gateway reads API requests in memory to check them, and doesn’t keep or log them.Sealed to the enclave by the gateway after it verifies it.The gateway that reads API requests runs on Vercel.
Files you attachText files are read in your browser; other kinds are encrypted to an enclave and turned into text there.PDFs, Office files and audio are turned into text inside an enclave.Ciphertext
Sync and shared linksWe store encrypted copies whose key is on your devices or in the link, with sizes and times.Not applicableCiphertext
Account and networkRequests and estimated spend are counted under a one-way hash, for up to two days.Requests reach Tinfoil under Undergrove’s key.Vercel sees ordinary request details such as your IP address, under its own logging and retention.
KeySealedReadablePartlyNot applicableTap or hover a cell for the detail.

What we keep

The limits

Read the full noticeHide the full noticeUpdated 31 October 2026