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Practical explanations

Learn to use AI

Practical guides to working with artificial intelligence. Step by step, from your first task to more advanced systems.

Understanding AI in practical work

Published articles for business owners, leaders and professionals who want to understand the technology well enough to use it and make better decisions — without having to become engineers.

Featured article

Start the series here: nine steps from an idea to a working system. Each step will get its own article.

Opinion7 min

Learn to use AI

How to build with AI: from an idea to a working system

An idea, a normal computer and an AI that can work on it: these are the steps I suggest to start building, organise the work and stay in control.

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More guides in this section

Practical guide14 min

Learn to use AI

You need a complex report. How do you ask ChatGPT to prepare it?

Practical experience6 min

Learn to use AI

From vibe coding to vibe working: how to build a professional presentation with AI

Practical experience10 min

Learn to use AI

How I am building this blog with AI

Writing, translating, preparing audio and changing a website through conversation, without giving up editorial control.

Guide15 min

Learn to use AI

Tokens: what artificial intelligence really consumes when you give it a job

A guide for professionals beginning to delegate work to AI — and wanting to understand what happens under the bonnet.

Practical analysis6 min

Learn to use AI

More powerful is not always better: sizing AI when it becomes part of a process

People starting to work with artificial intelligence often adopt a simple rule: always use the most advanced model. If it reasons better, understands more nuances and makes fewer mistakes on difficult problems, it seems prudent to entrust it with the easy ones too. Just in case.

Practical guide4 min

Learn to use AI

I already pay for ChatGPT: why does my automation come with another bill?

Your plan comes with a usage allowance. With an API, you pay for what you use. Before connecting a tool, check how you’ve signed in.

Guide5 min

Learn to use AI

Save what works: Git for working with AI without worrying about breaking things

Part two of How to build with AI: a folder with a memory, saved versions to return to and a simple way back when AI breaks something.
Guide6 min

Learn to use AI

Install AI on your computer and give it permission to code

First step in the How to build with AI series: install Codex or Claude Code, choose a folder and decide what your new programmer can do.
Opinion4 min

Learn to use AI

If you are going to build with AI, start now: you are being subsidised without knowing it

I have spent months building several systems and applications with artificial intelligence at the same time. These are demanding projects, aimed at getting capabilities and results I cannot find on the market. So I have decided to build them myself.

Opinion5 min

Learn to use AI

The context window: the great token guzzler

Your question may be small and carry an enormous backpack. Here is how an AI conversation grows and how you can lighten the load.

Opinion10 min

Learn to use AI

Talking to an AI while it works: the problem lies in the silences

I want to talk to my agents from my computer and phone, interrupt them and keep working. The solutions I use still do not convince me. That is why I am building an internal app to talk to my five main bots, each with its own voice, personality and projects.

Practical experience4 min

Learn to use AI

Claude Opus 5.5 versus GPT-6.1 Sol in real projects: my personal impression

In my projects, GPT-6.1 Sol works very well for me as a worker. Claude Opus 5.5 is working better for me as a coordinator. This is not a universal ranking of models: it is what I have observed when putting them to work on real matters.

Practical experience7 min

Learn to use AI

My AI works faster. Why do I have more things to review?

Working with agents makes it possible to keep ten or twenty projects running in parallel. But each moves at its own pace, produces results and calls for decisions. The capacity to set work in motion can grow much faster than our capacity to pay attention to it and coordinate it. That is one of the reasons I am building Alonides.

Practical experience4 min

Learn to use AI

My ten-year-old daughter and I made a video game with two AIs

A story imagined in the car, a playable version and a shared folder to coordinate two AI tools.

Practical guide9 min

Learn to use AI

Don't give it the keys to the law firm: how to limit an AI agent

A practical guide to security and governance

Opinion9 min

Learn to use AI

AI as the Great Equaliser

Guide11 min

Learn to use AI

The Advice I Would Give a Law Student Today

Learn law. And learn to direct artificial-intelligence systems.

Article6 min

Learn to use AI

Opening AI's black box: how it really reasons

The labs have reverse-engineered their own models. What they found inside is fascinating. And what they still can't see matters as much as what they can.

Article10 min

Learn to use AI

Your AI needs more than a chat: the connections that turn it into a working tool

Memory, access to a computer, email, a calendar, files and a convenient way to talk to it. Productivity comes when AI can work with what you need, without you having to copy everything from one window to another.