Most of it is right. Some of it isn't.

Check what the AI wrote before you put your name on it.

Cachet is a free app for your Mac. Give it something an AI or a person wrote, plus your own documents. It checks each fact and gives it one of three answers: Confirmed, Doesn't match, or Couldn't verify.

Download for Mac

Version 0.1, for Macs with Apple silicon (M1 or newer)

Not only for lawyers. Made for:

  • Lawyers
  • Finance teams
  • Visa applicants
  • Consultants
  • Contract managers
  • Founders
  • Journalists
  • Students

What it does

Each fact gets an answer, and Cachet shows you why.

AI summary of a contract a sample, with mistakes added on purpose

The agreement grants Distributor an exclusive license to market the Products.1 Distributor shall remit $360,000,000 on or before March 1, 2019.2 Late amounts accrue interest at 18% per annum.3 The initial term of this Agreement is five (5) years from the Effective Date.4 Either party may terminate for convenience on ninety (90) days written notice.5 This Agreement is governed by the laws of the State of Delaware.6 The parties agreed to binding arbitration in Geneva.7

Your documentdistribution-agreement.txt · §4.2 Payment
Distributor shall remit two hundred fifty million dollars ($250,000,000) to Supplier on or before April 1, 2019.

Doesn't match your document.

Section 4.2 says $250,000,000 by April 1, 2019.

Confirmed

2

Your document says exactly this. Cachet shows you where.

  1. 4Five (5) year term§6.1 says exactly this
  2. 5Ninety (90) days notice§11.2 says exactly this

Doesn't match

4

Your document says something else. You see both.

  1. 1Exclusive license§2.1 says non-exclusive
  2. 2$360,000,000 by March 1§4.2 says $250,000,000 by April 1
  3. 318% interest§4.3 says 12% a year
  4. 6Delaware law§9.4 says New York

Couldn't verify

1

Nothing in your documents answers it. Cachet says so instead of guessing.

  1. 7Arbitration in GenevaNo document mentions it

The record. One answer for every fact it found.

2 confirmed, 4 don't match, 1 couldn't verify. 7 facts checked.

Confirmed
Your document says exactly this. Cachet shows you where.
Doesn't match
Your document says something else. You see both.
Couldn't verify
Nothing in your documents answers it. Cachet says so instead of guessing.

Who it's for

For anyone who puts their name on their work.

Not only lawyers.

reply-brief-final.docx
A lawyer sending papers to a courtThe quote, and where it came from.
payment-run-sept.xlsx
A finance team paying suppliersThe bill's total, against the limit in the contract.
residence-permit-application.pdf
Someone applying for a visaThe passport dates typed into the form.
client-deck-v12.key
A consultant sending slides to a clientThe market number, against the report it came from.
msa-ai-summary.txt
A contract manager reading an AI summaryThe notice period, and the most anyone could have to pay.
investor-update-q3.pdf
A founder writing to investorsWho owns what share of the company.
story-draft-final.md
A journalist about to publish a storyThe quote, on the page it came from.
thesis-chapter-3.pdf
A student handing in a thesisThe source they quote, and what it really says.

Built for any document. Tested most on contracts, forms and personal documents.

How a fact gets Confirmed

AI can give hints. Only your documents can confirm.

Cachet says Confirmed only when your document says so. Its AI can also spot a fact said in other words. That shows up as a lead, which is just a hint. A lead never becomes Confirmed.

An exact match in your documentsCan say Confirmed

Cachet's AIA lead (a hint), never Confirmed

  • 0 wrong Confirmed answers

    In a test of 272 facts from 25 real, public contracts (CUAD, CC BY 4.0).

  • 44 of 55 true rewordings found

    LeadBy Cachet's AI, in a test of 104 fact pairs it had never seen. Of the 49 pairs that disagreed, it let 0 through. Shown as a lead, never Confirmed.

Privacy

The part of Cachet that reads your documents is blocked from the internet by macOS itself. The only things that leave your Mac are what you ask Cachet to look up online. Cachet shows you the full list.

Cachet 0.1 for Mac

FreeApple siliconChecked by Apple for malware801 MB

Download for Mac Release notes

Coming in the next release: a new chat-style screen, Cachet Sight (a helper in your menu bar), and Connect to Claude.

Signed by Developer ID Application: Chimdindu Madubuike (RX2B4WB5HQ)

Check the download yourself

  1. The file matches the one that was published

    shasum -a 256 -c Cachet-0.1-macos-arm64.zip.sha256

  2. Apple's malware check is attached to the app

    xcrun stapler validate Cachet.app

  3. Your Mac accepts the app's signature

    spctl --assess --type execute --verbose=4 Cachet.app

Coming to Cachet

  • Fixes, shown as edits you can accept
  • A watcher for new files
  • Check a set of documents against each other
  • Ask a person to sign

Contact

“I have seen what happens when no one checks.”
Madubuike Chimdindu (Madu), founder of Cachet, Berlin
chimbrooks@gmail.com LinkedIn