Server: EU · Germany
Third-party AI in document answers 0Model on your own server

Crowlin / How it works

How Crowlin works inside.

For IT and security teams: the journey of one question, connections to business systems, digital employees and the technical security of operations.

The journey of one question. Entirely inside.

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Who is asking

Sign-in with a company account (Google Workspace; Microsoft 365 connected during rollout). Without a verified identity Crowlin answers nothing at all.

No identity: rejected, not “anonymous mode”
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What they may see

Roles, teams, projects and confidentiality level are loaded from the permission database — never from the question. Whatever is not explicitly allowed is denied.

An explicit deny always beats a role
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Searching the documents

Only documents the person can access are searched — contracts, policies, documentation and other connected sources. A second, specialised model ranks the most relevant passages.

The permission filter runs on the server, not in the app
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A model on your hardware

The answer from your documents is written by a language model running on a GPU inside the server. Documents are never sent to OpenAI, Google or any other third-party AI service.

Company documents never go to third-party AI
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An answer with citations

Every claim links to a source you can open and check. If the answer isn’t in the documents, Crowlin says so instead of making it up.

“It’s not in the documents” is a valid answer
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Audit record

Who asked, what they were allowed to see and which documents the answer came from. Every question leaves a traceable record.

Audit trail for every question
YOUR SERVER External AI API0 B Cloud storage0 B Third-party analytics0 B

It knows what you know. And in the morning, what changed yesterday.

Crowlin connects to the sources where your knowledge already lives. Nothing to rewrite, nothing to migrate. Sync runs overnight and every document carries its own permissions.

Documents, wikis and project tools

Contracts, policies, data sheets, ISO documentation, meeting notes. Today: uploaded files (PDF, Word, Excel, CSV) plus Confluence and Jira connectors; SharePoint and network drives are connected during rollout. Spaces and folders map to confidentiality levels.

Only changes, every nightMorning digest of what’s newPermissions by space and folderCustom connectors for your systems

ERP and other business systems

Orders, jobs, stock, invoices, complaints. We build the API connection to the system you use — SAP, Microsoft Dynamics, local ERPs or your own solution — as part of implementation.

Hands taking a phone photo of a paper invoice

Photo of a document

Snap an invoice, delivery note or label. The text is read by the model on the server — the photo never leaves.

The server does the maths

Revenue, margins, downtime, cost of complaints. For connected systems the calculation runs directly on the data — the model doesn’t estimate numbers, it only explains them.

The web, when needed

Up-to-date information from the internet through a search engine running on the server. Only the search query goes out, never your documents. The feature can be switched off.

Digital employees with precisely defined authority.

Crowlin doesn’t just answer. Digital employees prepare a digest, assess a public tender or check documents on their own. You decide what they may do alone and what needs human approval — and which model they run on: local, or a cloud model where the data allows. Below are examples we set up around your processes.

R0–2

On their own

Read, search, summarise, draft. No human intervention.

R3

With approval

Reply to a customer, change an order status, write to the ERP. A person confirms with one click.

R4–5

Humans only

Payments, contracts, deleting data. The agent prepares the groundwork, a person always decides.

Every tool has a risk class. An agent never gets a tool without an assigned class — and every action it takes is audited under the name of whoever approved it.

Operations coordinator

Morning operations digest

Goes through shift reports, orders and complaints from the last 24 hours and sends management a summary of what’s on fire.

Mon–Fri 8:00read-only
Tender assessor

Bid or no bid?

Extracts the requirements from the tender documents, compares them with your references and gives a reasoned recommendation.

on demandread-only
Invoice checker

Does the invoice match the order?

Compares every incoming invoice with the order and contract and flags differences in price, quantity or payment terms.

continuouspayment approved by a person
Customer support

Draft reply to a customer

Uses data sheets, contracts and order history to draft a reply to a customer enquiry.

on demandsending needs approval

Security proven by tests, not promises.

Every access rule has an automated test. If any check fails or the permission database is unavailable, Crowlin would rather not answer — it never returns unfiltered data.

Access security tests — selectionrunning…
01No identity = rejectedPASSED
02Company isolation — nobody sees another company’s dataPASSED
03Whatever is not allowed is deniedPASSED
04An explicit deny overrides a rolePASSED
05A spoofed identity header is rejectedPASSED
06Prompt injection can’t change the filterPASSED
07The cache never serves someone else’s answerPASSED
08Permission changes apply immediatelyPASSED
09Permission database down = no answerPASSED
1020 concurrent queries from different companies, 0 leaksPASSED

Data in the EU or on your premises

A server in a German data centre, a dedicated machine, or — individually — your own server room.

Encrypted backups

Daily encrypted off-server backups. We test restores regularly instead of assuming they work.

24/7 monitoring

Availability checks from outside and inside, with alerts before you notice an outage.

Every question traceable

Who, when, what they were allowed to see and which sources the model used. For audit, compliance and debugging.

We measure accuracy on your data

Every answer carries a link to its source, so it can be checked. Citations make answers verifiable but don’t make them infallible — so in a pilot we build a control set of questions from your company with correct answers and measure accuracy against it. Where the answer isn’t in the documents, Crowlin says so.

Infrastructure and operations

  • All services in an isolated internal network; only HTTPS is exposed
  • Server access by SSH key only, no passwords; protection against repeated login attempts
  • Default-deny firewall and automatic security updates
  • Encrypted connections (TLS) and company sign-in enforced at the gateway
  • Daily encrypted backups of the database and vector index, off-server copies, regular restore tests
  • Server and GPU monitoring, external uptime checks and tracing of every model request

Technical FAQ

Is this ChatGPT with a different logo?
No. Crowlin uses an open language model running directly on the server. To answer from your documents it doesn’t connect anywhere and sends the documents nowhere. Search, permissions, citations and audit are our own layer on top of it.
Which model does Crowlin use?
An open Qwen3 language model (14 billion parameters) on a server GPU, plus a specialised re-ranking model and a model that reads photos of documents. The model can be swapped without changing permissions, citations or audit.
Is a self-hosted model as smart as the biggest ones?
Not for general philosophising. For answers from your documents, accuracy depends mostly on the quality of search and permissions — and that we measure. Where the data allows, Crowlin can use a cloud model for selected tasks; the decision is always yours and applies to a specific type of data.
How are other systems connected?
Ready connectors exist for uploaded files, Confluence and Jira. Other systems (SharePoint, network drives, ERP) are connected through their interfaces during implementation — including their permissions.
Can our own applications use Crowlin?
Yes. Crowlin offers an interface compatible with common AI tools and MCP support. Your applications ask just like people do — with the same permissions and audit.

We’ll show you on your own data.

We’ll show you Crowlin on a sample of your documents in an isolated space. We delete the data after the demo on request.

Miloš NovákManaging Directornovak@techcrowd.cz+420 728 826 186
Petr KropáčPM & Business Developmentpetr.kropac@techcrowd.cz+420 721 802 259