Run your own AI agent, and keep your data where it belongs
A local, offline AI agent gives your team the benefits of AI without sending confidential information to outside servers.
Why run AI locally?
Every AI tool is also a place where confidential information can go. The safest place for it to go is nowhere.
Your data stays put
Cloud AI tools process your prompts and files on someone else’s servers. A local agent works on your own hardware.
No subscriptions to depend on
Custom-built technology means no per-seat AI subscriptions and no vendor that can change terms on you.
Safe answers for staff
Staff get an approved internal agent, so they have less reason to paste data into personal AI accounts.
Threats we design against
Data leaving your control
Prompts and files sent to outside services can be stored, logged or exposed. Ours never leave your environment.
Shadow AI
Staff using personal AI accounts for work. We provide a safe internal alternative and a workplace AI policy.
Prompt injection
Documents or emails that try to give the agent instructions. We treat all content as data, never as commands.
Over-broad access
An agent that can see everything. Retrieval respects each user’s permissions and connectors are read-only.
Risky actions
The agent cannot send messages, make payments or delete records without a person approving.
Exfiltration
With no outbound connection, a compromised or misbehaving agent has no path to send your data to the internet.
How the agent is protected
- Isolate the networkThe agent runs on a separate network segment with no internet access.
- Encrypt everythingData at rest and backups are encrypted.
- Control accessRole-based accounts, MFA for administrators and per-user document permissions in the RAG pipeline.
- Constrain the agentRead-only by default, with human approval for any action.
- Log and monitorA complete audit trail of questions, answers and sources, with alerts for unusual activity.
- Update safelyModel and software updates are verified and tested before being applied offline. Backups and a recovery plan are included.
Safeguarding data across industries
| Industry | Sensitive data | What your local agent does |
|---|---|---|
| Accounting & finance | Client financials, banking, payroll, tax records | Reconciliation, variance reports and document extraction inside your network |
| Healthcare & clinics | Patient and scheduling information | Admin summaries, scheduling workflows and policy Q&A without outside AI services |
| Legal & professional services | Privileged client files and contracts | Search and drafting from your own matter files, with per-user access |
| Construction & trades | Bids, contracts, job costing, supplier terms | Cost reporting, document search and an SOP assistant |
| Automotive & retail | Sales, customer and inventory data across locations | Consolidated reporting, location comparisons and workflow automation |
| Manufacturing | Designs, process data, supplier pricing | Internal knowledge assistant and quality-document search |
| Public sector & education | Resident, student and employee records | Policy Q&A, records search and reporting |
An honest note on limits
Offline reduces exposure, not all risk
Physical security, user accounts, device hygiene and patching still matter. We include them in the engagement.
Compliance depends on you
A local agent can help you meet privacy obligations but does not by itself make you compliant. Your obligations depend on your industry and location.
Private AI, on-premises AI, air-gapped AI: what’s the difference?
Private AI means AI that processes your data in an environment you control. On-premises AI means it runs on hardware you own or host. Air-gapped AI means it has no connection to the internet at all. Cartax AI deploys a private, on-premises agent with no internet connection, built on a custom Transformer language model and a RAG pipeline (retrieval-augmented generation, which answers from your own documents). More answers in our FAQ and our guide to private AI vs cloud AI.
Find the hours you’re losing each month
Book a free 30-minute consultation. We will show you what can be automated and what it would save.
Book Consultation