The operating system for the one-person department.

CastelOS is a local-first AI execution system that turns one powerful workstation into a full operations team — content, analytics, knowledge, media, automation, and reporting handled by one operator instead of ten.

10 roles1 workstation1 operator

Solo studio — limited slots. Response within 48h. Deposit confirms your slot in the queue.

LIVE DEMO — SIMULATED

Ask the OS

Try a sample request below. This demo shows how CastelOS classifies and routes work — not a live connection to a production system.

castelos — ask the osROUTING PREVIEW · scripted responses

Response will appear here once you send a request.

Need something built or produced now? We do that.

Core services

Founding-client rates — reduced while we build the public portfolio. Limited slots.

01 · SCAN

AI Quick Scan

Where AI pays off in your workflows, mapped + roadmap.

your process notes → audit report + roadmap → 1-2 weeks

A decision aid — you stay the decision-maker.

490€ Light / 890€ Standard

Request a quote

02 · RAG

Private Knowledge Base

Your documents, searchable and answerable — citations verified by code.

your document corpus → local RAG system → 2-4 weeks

Works on your machine; answers cite sources or honestly say "not found".

from 1 900€ (typical project 2 900-4 500€)

Request a quote

03 · AUTO

Process Automation

One repetitive process automated, with human checkpoints. Includes scheduled reporting.

one process + sample data → running automation → 2-4 weeks

A person signs off at every defined checkpoint.

from 990€ + care plan 290-490€/mo

Request a quote

04 · WKST

Private AI Workstation

Your own AI, running on your own hardware. Air-gapped modes, data classes, training included.

your requirements → installed workstation + training → 3-6 weeks

An engineering setup, not a certification; your compliance stays yours.

from 2 900€ + hardware (transparent quote)

Request a quote

05 · MEDIA

AI Media Lab

Content, audio and video production through governed pipelines.

your brief → reviewed deliverables → per pack

Human-reviewed; synthetic voices by default; likeness only with written consent.

content from 490€/mo · video from 490€ · talking-head from 990€

Request a quote

06 · PILOT

CastelOS Pilot Deployment

The system itself, installed and operated for you.

scoping call → pilot deployment → by agreement

Operator-installed today; self-serve edition — join the waitlist.

pricing on request

Request a quote

AI assists — it does not replace professional judgment. You validate and approve all deliverables.

Platform capabilities

Available on request — built on the same platform.

Websites & landing pages

Multilingual, CMS publishing.

Document intelligence

PDF analysis, version diff, extraction.

Marketplace seller assistant

Listings, fee-aware margins.

Marketing strategy

ICP, funnels, launch plans.

Browser automation

Legitimate monitoring & workflows.

Book-to-audiobook production

Voice cloning

With written consent only.

AI tutoring systems

WAITLIST

Personal AI job search

Private, local-first, your CV never leaves your machine.

WAITLIST

Property auction analytics

Data and analysis on auction lots.

Not investment advice.

THE SYSTEM

CastelOS

Most businesses run on a patchwork: ten tools, ten subscriptions, ten context switches, ten points of failure. CastelOS is the alternative — one governed system on one powerful workstation, run by one operator.

Content

Drafts, documentation, and copy move from idea to reviewable text without leaving the system.

Analytics

Your data becomes a readable report instead of a spreadsheet nobody opens.

Knowledge

Everything your team has written becomes something your team can actually find.

Media

Visuals and audio are produced under the same governance as everything else.

Automation

Routine steps run on their own, and pause for a person when it matters.

Reporting

The state of the operation is always one glance away, not one meeting away.

17 studios across the platform — one operating system.

What it is not

  • just a chatbot
  • a wrapper over one model
  • a collection of prompts
  • a studio zoo
  • a SaaS dashboard

IS

  • a system
  • installable
  • local-first
  • governed
  • extensible through packs
  • built for execution

Editions

Lite

single-domain starter profile

Pro

full multi-studio workstation

Enterprise

custom deployment and governance

Pricing on request.

Deployed as operator-installed pilots today. Self-serve edition — join the waitlist.

Built on what we run ourselves.

TLX

An autonomous AI media channel, publishing around the clock with self-healing pipelines.

Anna

A voice companion that calls, listens and remembers — built for elder care.

French Tutor

A complete AI tutoring product: lessons, voice, pronunciation scoring.

Self-heal

A runtime that detects, diagnoses and repairs its own failures — live, in production.

No stock logos. No invented testimonials. These systems are real and running.

90-second process video — coming with launch

PUBLIC PROOF, PRIVATE MOAT

How it thinks

We publish principles, not internals: local-first by design, the smallest capable model for each task, human approval where it matters. If it explains a pattern — we share it. If it enables cloning — we don't.

FAQ

Questions worth answering honestly

Do you work with my data locally?

By default, yes — the standard deployment runs on your own workstation, and your documents and data stay on your machine. Some capabilities (e.g. certain media or web-facing tools) may call external services when there's no practical local equivalent; when that happens, we tell you which service and why, before it's part of your setup.

What does a project cost?

See the Core services pricing above — real published starting prices, from 490€ for an AI Quick Scan to custom quotes for a full workstation or pilot deployment. These are founding-client rates while we build the public portfolio. We give a transparent quote before any work starts; nothing is billed on estimate alone.

Do I need my own hardware?

For a Private AI Workstation, yes — we help you choose or supply the hardware and install on it. For smaller engagements (a scan, a knowledge base, one automation), we can scope around hardware you already have.

Which languages do you work in?

This site and our delivery work in English and French; the platform itself has been used with Russian, Ukrainian, and German content as well. Ask about your specific language needs when you get in touch.

Is the demo a real AI?

No — the "Ask the OS" widget above is a scripted routing preview: fixed sample prompts and pre-written responses that illustrate how requests get classified and sent to the right studio. It doesn't call a live model and it doesn't collect data. A real, live demo on an actual CastelOS instance is available on request.

Who reviews what the AI produces?

You do. Every deliverable — a draft, a report, an automation run — passes through a defined approval checkpoint before it goes anywhere final. We don't ship a system that acts on your business unsupervised.

Contact

Book a Project

We reply within 48h. Prefer email? contact@castel.studio

Product access

Pilot deployment, live demo, or waitlist — email us.

Connect on LinkedIn(link arrives with deployment)

Talk to us

Message on Telegram(link arrives with deployment)

Book a 20-min intro call

Calendar embed arrives with deployment