For counsel, compliance & research

#1 Source-checked
AI for professionals.

Octavo answers only from your own documents, shows the exact source behind every line, and refuses when two of them disagree.

Start a six-week pilot
Octavo · EU GDPR + national law
▢ WITHHELD
GDPR · Art. 8(1)EU regulation
“…lawful where the child is at least 16 years old.”
Belgian Act of 30 July 2018 · Art. 7national law
“…at least 13 years old.”
No answer recorded. The two sources conflict, so both are shown for a human to resolve.
Proof, not promises

We don't have a wall of logos yet. So judge the thing that counts: can you check every answer yourself?

100% sourced

You can check every answer yourself

Every sentence points to the exact source it came from, quoted for you. You never have to take our word for it.

You must report a personal data breach within 72 hours1, or give reasons for the delay2.
1GDPR · Art. 33(1): “…not later than 72 hours after having become aware of it…”

Powered by Claude

Built on Claude, Anthropic's frontier model and one of the best AIs for working with text. Octavo holds it to your own sources.

Your files stay yours

It only reads your own documents, and deletes them whenever you ask.

Never the open webNever trained on
What you get

Three things a normal AI can't give you.

Benefit I

See where every
answer comes from.

Every line shows the exact page it's based on, quoted for you. You can check it in seconds instead of reading the whole file.

ICheck it, don't trust it
Benefit II

It says "I'm not sure"
instead of guessing.

When two of your documents disagree, it won't quietly pick one and hope. It shows you both and waits for a person to decide.

IINo confident wrong answers
Benefit III

The same answer,
every time.

Answers are saved and don't change, so you can come back to them later. Your files are never used to train anyone's AI.

IIIYours, and repeatable
Try it first

Six weeks free. No card. No risk.

The pilot

Six weeks. Free.

The full product, on your own documents. Nothing to pay to find out if you trust it.

  • ✦ No credit card, no sales call, no setup
  • ✦ Stop after week two or week six, and you owe nothing
  • ✦ Your data is deleted the day it ends, if you ask
Start your six weeks

After the pilot it's one simple flat rate. See pricing →