nerdster.ai

Private · UK-hosted · nothing sent to public models

Private AI that never leaves your walls.

The power of a private ChatGPT for your company — ask your business anything, put AI to work — run entirely on infrastructure you control. Your data stays yours, never sent to a public model, never used to train one.

Why this exists

If you can’t put client data in ChatGPT, this is your AI.

Most businesses that hold sensitive data have held back on AI for one good reason: they can’t send client files to a public tool. Private AI removes that reason. You get the benefit of AI without the exposure — built and run for you, inside your own walls.

What makes it private

Built for confidential work.

Your data never leaves your walls

It runs on infrastructure you control — your own servers or a private, UK-hosted environment. Nothing is sent to OpenAI, Google or anyone else.

Never used to train a public model

Your documents, emails and client data stay yours. No third party learns from them, ever — it’s written into how the system is built.

Permissioned and auditable

People see only what they’re allowed to. Every question and answer is logged, so compliance can show exactly what happened and when.

A human stays accountable

For anything that matters, a person signs off. You get the speed of AI with a clear line of responsibility — the way regulated work needs it.

What it does

Everything, privately.

Ask your business, privately

Search and question every contract, email, file and record across your firm — with a source for every answer — without any of it touching a public AI.

Draft and review on your data

Letters, reports, first-pass document review and summaries, produced from your own precedents and house style, inside your own walls.

Governed automation

Chase, triage and route the repetitive work — with permissions, an audit trail and a human check on anything sensitive.

Want to feel it first? Our free document reader shows the experience on open models. The private version runs the same idea across your whole business, on your own infrastructure — that’s what we build and run for you.

Built on the platforms the world trusts

  • Anthropic
  • OpenAI
  • Google Gemini
  • AWS
  • Microsoft

FAQ

Private AI, answered.

What is private AI, and how is it different from ChatGPT?

Public tools like ChatGPT or Copilot send your data to a third party’s servers. Private AI runs on infrastructure you control — your own servers or a dedicated UK-hosted environment — so your documents and client data never leave your walls and are never used to train anyone’s model. You get the same “ask your business anything” experience, kept entirely private.

Can we run a private ChatGPT for our company on our own servers?

Yes. We build and deploy a private, ask-your-business AI on infrastructure you control, connected to the systems you already use, with permissions and a full audit trail. It stays inside your environment — nothing is sent to a public model.

Is our client data safe?

That’s the whole point. Data stays under your control, permissioned so people see only what they should, logged for compliance, and never used to train a public model. For the strictest cases we can run it fully on-premise or air-gapped so nothing leaves your network at all.

Who is this for?

Firms that can’t put client data in public AI tools — law firms, accountants, financial advisers and wealth managers, healthcare and care providers — and any business that treats its data as a genuine asset. If confidentiality or regulation is the reason you’ve held back on AI, this is the version built for you.

What does it cost?

It’s scoped to your setup — the systems involved, the hosting, and how much you want AI to do. We agree the figures in writing before anything starts, usually beginning with a fixed-price pilot on one workflow so you see it working before you commit.

Let’s talk

Private AI, built around your rules.

Book a free call. We’ll show you exactly how a private, UK-hosted AI would work for your firm — and how we keep your data entirely inside your walls.