Claudiu, founder of Human2OSClaudiu · Human2OS

Learn AI. Make it useful. Build something real.

Human in the loop.

AI does the fast part: it drafts, sorts and summarises. A person checks the work and makes the final call. Nothing important goes out until a human says yes. That is how we teach AI, and how we build with it.

HumanJudgementEmpathyEthics Human inthe loopAI prepares.You decide. AISpeedScaleMemory
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Claudiu at his desk, reading, next to a glowing holographic brain
Choose your path

Three starting points. One way of working.

For your work

Use AI for yourself

Practical AI skills for everyday tasks: write, research and plan faster, and catch what AI gets wrong.

  • Safe, everyday use
  • Checking AI output
  • Simple personal workflows
Start with Field Notes
For your business

Use AI in your business

Find the repetitive work worth handing to AI, and set it up so a person stays in charge.

  • Enquiries and follow-ups
  • Reports and knowledge
  • Data and risk, in plain English
Get guidance
For your future business

Build AI services for others

Learn how practical AI skills can become a service, and how to deliver it responsibly.

  • Choosing a useful service
  • Demos, scopes and pricing basics
  • Real economics, no income promises
Learn the basics
What you'll actually learn

Skills you can use this week.

Not hype, not a tool list. The habits that turn AI from a chat window into useful work.

Illustration: a man in thought and a robot head with butterflies, facing a glowing holographic brain
Interactive example · try it

A draft is not a sent message.

This is how every workflow we design behaves. A request arrives, the AI prepares a reply, and nothing leaves until a person decides. Nothing here is sent anywhere.

  1. Read the enquiry
  2. Edit the AI draft if you like
  3. Approve or discard
New enquiry
Example · From: Maria, owner of a small design studioHi, we lose hours every week answering the same client questions. Can AI help with that?
EnquiryAI draftWaiting for youSent
Waiting for your approval. Nothing has been sent.
The Human2OS Method

Five steps, whatever your goal.

The same method whether you're improving your own work, a business process, or a service you deliver to clients.

  1. Choose

    Pick a real problem and decide whether AI is the right answer. Sometimes it isn't.

  2. Design

    Map the steps, the data, the risks and where a person decides.

  3. Build

    Create the smallest version that does something useful.

  4. Verify

    Test accuracy, failures and approvals before anyone relies on it.

  5. Apply

    Use it in your work, your business, or as a service for others.

Where AI helps first

Three workflows most people start with.

Enquiries

Replies ready for review

AI sorts incoming requests and drafts answers. You approve, edit or discard.

Before: read, search, write every answer. After: check a ready draft.

Follow-ups

Nothing slips through

AI tracks who's waiting and prepares the follow-up. You decide who gets it and when.

Before: follow-ups live in your head. After: a daily list, drafts included.

Knowledge & reports

Your information, organised

AI turns notes and documents into summaries. You check the facts and sign off.

Before: notes everywhere. After: one summary, checked by you.

Learn with Field Notes

One useful AI skill at a time.

A free weekly newsletter that teaches, not a news recap. Each edition solves one real problem, step by step, with the human review and data checks built in.

Everyday AIPrompting, fact-checking, personal workflows, safe use.
AI for your businessFinding repetitive work, approval steps, tools, data, measuring results.
AI service businessChoosing a service, demos, discovery calls, scopes, honest pricing.
Subscribe to Field Notes, free

Weekly. Unsubscribe any time.

Coming up
  • What AI can really do for everyday work
  • Human-in-the-loop, explained in five minutes
  • Your first useful workflow
  • When not to automate
  • Reviewing AI-written customer replies
  • Protecting data while using AI
  • What is an AI service business, really?
  • Avoiding false income and ROI promises
Find your AI use
IKIGAI LOVE NEED SKILL MONEY
Learn the AI skill that sits where what you enjoy, what you're good at, what people need and what pays overlap.
Get practical guidance

Bring one problem. Leave with a clear next step.

For individuals, small businesses and future service providers who'd rather not figure it all out alone.

Start here

15-minute fit call

Free

15 minutes. One problem. A clear next step. We check whether AI can help and which option fits you.

Book a free call on Stan Claudiu at the AI for Good press desk in Geneva
1:1 session

AI Clarity Session

60 minutesPilot price confirmed before you pay

You get

  • A focused look at one defined problem
  • An honest view on whether AI is the right answer
  • A suggested workflow or tools
  • Where a person must approve, and basic data risks
  • A short written next-step plan after the session

Not included

  • Building or deploying the system
  • Software subscriptions
  • Legal or financial advice
  • Guaranteed results or income
Request a session

Need it built? Implementation is quoted in writing after a session, with software costs listed separately. Larger builds are delivered with vetted developer partners, and the proposal says who does what and how everyone is paid.

Tell us about your task

Not sure where AI could help?

Describe one task you repeat. Choose a written suggestion with no call, or request a Clarity Session. A person reads every request.

The written suggestion is short and practical, not a free technical specification.

Claudiu at the AI for Good Global Summit in Geneva
What would you like?

Please don't include sensitive personal or client data. Your details are used only to reply to you.

Your data and your control

Clear answers before anything starts.

Every engagement answers these questions in writing. No blanket promises, just how the work is actually done.

Is this for you?

A good fit, and when it isn't.

Good fit
  • You use AI a little and want it to be genuinely useful
  • You run a small business and repeat the same tasks every week
  • You want to learn to offer AI services, and do it properly
  • You want AI to do more, and still decide yourself
Not a fit
  • You want AI to act on its own, with no review
  • You're looking for guaranteed income from AI
  • You need high-risk decisions automated without qualified oversight
About Human2OS

Claudiu

I've spent my career in the room between two groups: the people who run a business and the people who build its technology. I translate what one needs into what the other can ship.

Human2OS does the same for AI. At the AI for Good Global Summit in Geneva, the question that stayed with me was how to use AI without handing over control. Everything here answers it the same way: AI drafts, people decide.

Studied business IT, law and business administration (master's, ASE Bucharest).

Connect on LinkedIn →Book a free call on Stan
How pricing works

Clear before you commit.

Free

Learning and fit call

Field Notes, the 15-minute call and the written suggestion cost nothing.

Fixed price

Clarity Session

One price for a defined scope, shown before you pay.

Written quote

Implementation

Scoped and quoted in writing. Third-party software costs listed separately. No hourly surprises.

Questions

Before you start

Is this for beginners?

Yes. Field Notes starts from the basics, and sessions start from where you are.

Do I need to know coding?

No. Most useful workflows start with tools you already use. If code is needed, it's handled for you or by a partner.

Can you help my business?

If you have a repetitive task with clear steps, probably. The free call tells us quickly.

Can I learn to sell AI services?

Yes, through the AI service business track in Field Notes. It covers real delivery and economics, not shortcuts.

How much does a session cost?

The 15-minute call is free. The Clarity Session has one fixed price, shown before you pay.

What's included in a session?

One defined problem, an honest view on AI's role, a suggested workflow, approval points, basic data risks and a short written plan.

Why not just use ChatGPT?

Use it. The hard part is fitting AI to how your work actually runs, and deciding where a person must check. That's what we work on.

What if AI makes a mistake?

It will, sometimes. That's why outputs that matter are reviewed by a person before they're used or sent.

Who approves outputs?

You, or the person you choose. Approval rules are agreed for each workflow.

Which tools process my data?

They're named in your plan before anything starts, with their data settings checked.

Can you implement it?

Simple workflows, yes. Larger builds are delivered with vetted developer partners, quoted in writing.

Do you guarantee income or ROI?

No. You get a clear scope and honest advice. Results depend on your work and how the system is used.

What happens if a workflow fails?

We test before you rely on it. If it isn't working, we fix it or stop, as agreed in the scope.

The first drop

Merged by a human.

Every good engineering team knows it: nothing ships without a second pair of eyes. We think AI deserves the same rule. The "keep thinking." tee, in white and black, printed to order. Field Notes readers hear first.

Human2OS keep thinking t-shirts in white and black
Get first access
The Human2OS book: Human in the loop, by CT
Coming next · the book

Human2OS: Human in the loop.

The human operating system for working with AI. Real stories, real mistakes, and a simple rule that keeps people in charge: AI drafts, people decide. In progress now.

Hear first when it's out
Next step

Start learning, or start with one problem.

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AI drafts. People decide.