Encrypted AI.
From how you think.
Securely draft anything, from your reasoning, in your voice, from your encrypted knowledge base — emails, notes, drawings, designs, past work.
For lawyers, accountants, doctors, engineers, designers, creatives, consultants — anyone whose work should be theirs, not generic AI output.
Learns the way you write — sentence length, vocabulary, hedging, tone — from your knowledge base, so drafts sound like you, not a generic AI.
Encrypted in your browser with a key only you hold. We can’t read your files — neither can anyone who breaks into our storage.
Drafts pull from your own past work — not random internet facts — so what you send out is grounded in what you actually know.
Your data. Your key. Only you can decrypt.
-
Your device
Files encrypted here, with a key derived from your passphrase. The key never leaves your browser.
-
Our storage
Only encrypted files. We hold no key — we cannot read what you store.
-
Your draft
Decrypted only when you ask for a reply. Nothing is retained or used for model training.
If someone breaks into our systems, they find only unreadable encrypted files. If they breach Anthropic during the one second your draft is being generated, they could, in principle, see that one draft — no AI tool escapes that. We shrink that window to the smallest footprint we know how to.
Learn more about data security →