Your AI. Your data. Your device.

Cloud AI tools are powerful but built for general use. Your documents — contracts, cases, patient files — need something different. USB PAI indexes them locally on the USB key and answers your questions with exact citations. Everything stays on your device. Always.

Plug and play No account Works offline Files never leave device Requires 16GB RAM
PAI USB drive — close-up
What it is

A private AI that knows your documents.

Most AI tools in the Cloud are powerful but general. They know everything except your work — your contracts, your research, your files. Even when documents are cached, every session with a large file costs real money in tokens.

PAI is different. You upload your documents once. The AI indexes them locally on the USB drive and answers questions about them with exact citations.

Need more processing power? You can switch between built-in local AI or advanced external models like ChatGPT or Claude using MCP mode with auto anonymisation built-in. Even when using external AIs, your files never leave the drive. Only the relevant anonymised content needed for your answer is ever visible to your cloud AI. PAI replaces client names and sensitive identifiers with pseudonyms before any excerpt reaches the cloud — restoring real names in the answer.

Everything stays securely on your USB.

Upload your documents
PDF, DOCX, XLSX, ...
Ask in plain language
"What are the payment terms in this contract?"
Get cited answers
"According to clause 4.2, payment is due in 30 days"
How it works

Plug in. Upload. Ask.

Step 1: Plug in
PAI will be available for Windows, Mac and Linux. No installation. No account. No configuration. Double-click app icon to start.
Step 2: Upload your documents
Drag and drop your files. PAI extracts text, images, tables, understands the structure, and indexes everything locally.
Step 3: Connect to your preferred cloud AI
Switch to MCP mode to give privacy aware access. PAI sends only the relevant pseudonised content to your AI. You save up to 80% of tokens.
Step 4: Ask anything
Type a question in plain language. PAI finds the right passage, cites the source, and gives you a precise answer. No hallucination about your files.
Features

Built for professionals who work with documents.

Private by design

Your files are indexed on the USB drive. They never reach any server. Unplug the drive and nothing remains on the computer.

Works with any AI using MCP

Connect Claude, ChatGPT etc. to your data using local MCP. PAI sends only relevant anonymised content. AI costs can be cut up to 80%.

Offline, always

The drive includes a local AI model that works without internet. In a meeting room, on a plane, in a location with no signal — PAI still answers your questions.

Precise citations

Every answer includes the exact source: document name, page number, and the retrieved passage. You can verify every claim in seconds.

Anonymisation mode

When connecting to Claude or ChatGPT, your PAI can replace client names, company names, and sensitive identifiers with pseudonyms before sending any excerpt to the cloud. The AI reasons on anonymised text — The PAI restores real names in the answer. Full AI power, zero data exposure.

EU AI Act ready

A PAI automatically logs every AI query and keeps a full audit trail on the drive. Compliance-friendly by design — no private data leaves your network, nothing to register with regulators.

Excel and structured data

Upload spreadsheets alongside documents. Ask calculation questions — totals, averages, filters — and get exact answers from your own data, not approximations.

Knowledge Packs

Give your AI specialist knowledge.

PAI ships ready, capable to answer questions about your own documents. Knowledge Packs are optional monthly subscriptions which maintain up to date expertise in a specific domain.

Spanish Legal

Legislation, jurisprudence, and BOE updates.

Includes: Civil Code, Labour Law, GDPR (ES), Contract Law
Language: Spanish
Updated: Quarterly
€4.99 / month

EU Compliance

GDPR, NIS2, AI Act, and sector-specific regulations.

Includes: Full regulatory text + guidance documents
Language: EN / ES / FR / DE
Updated: On regulation change
€4.99 / month

Medical ES

Clinical protocols, drug interactions, diagnostic guidelines.

Includes: Spanish Ministry of Health + EMA documents
Language: Spanish
Updated: Quarterly
€4.99 / month

More packs coming

Legal FR · Legal DE · Financial · Construction

Once subscribed, packs are downloaded automatically to your USB. They work offline. Your queries stay private regardless of which pack you use.

Enterprise

A private AI trained on your organisation.

PAI Enterprise is a custom deployment built around your company's knowledge, processes, and terminology. We fine-tune the AI model on your internal documents and pre-load it with the corpus your teams use every day.

Custom Knowledge Base

We build a pre-loaded corpus from your internal documentation, product specs, procedures, and institutional knowledge. Your teams get relevant answers from day one.

Fine-tuned Model

We adapt the AI model to your domain, vocabulary, and tone. A law firm, a hospital, and a manufacturer each need a different AI. Yours should work the way you work.

Deployed on Your Hardware

PAI Enterprise ships on hardware you control. No data leaves your network. No vendor lock-in. Compliant with the privacy requirements of regulated industries.

Available for teams of 10 or more. Pricing on request.

Under the hood

Built on open standards.

PAI is built in Rust — a single binary that runs directly from the USB drive with no installation required on the host machine. Models and data never leave the drive.

Local inference: runs entirely on your hardware, no cloud connection required
Semantic search: understands the meaning of your question, not just keywords — finds the right clause even when you don't remember the exact wording
Hybrid retrieval: combines semantic understanding with exact keyword matching for citations you can verify in seconds
Structured data: reads Excel and CSV files alongside documents — ask calculation questions and get exact answers from your own data
Universal formats: PDF, DOCX, XLSX, CSV, images, and scanned documents with automatic text extraction
MCP compatible: works with Claude Desktop, Cursor, and any MCP-compatible tool as a private knowledge server
Pricing

One price. No subscription.

PAI

99
one-time
  • Local AI included
  • Works with Claude / ChatGPT / Gemini
  • 128GB USB-C drive
  • Offline, always
  • All document formats
  • Knowledge Packs sold separately

PAI Pro (Coming Q1 2027 — join the waitlist)

249
one-time
  • Everything in PAI
  • Hardware-encrypted USB (FIPS 140-2 certified)
  • PIN pad on the drive
  • Auto-wipe after 10 failed attempts
  • For legal, medical, and compliance use

Designed for legal, medical, and compliance professionals handling the most sensitive files.

Knowledge Packs: On demand, from €12 per update — purchased inside the app

Enterprise: pricing on request

Shipped from Barcelona. Secure checkout via Stripe.

System requirements: 16GB RAM minimum · Windows, macOS, or Linux · Dual USB 3 - USB-C port