A professional digital twin is an AI replica of a real person, with their judgement, their face and their voice, that talks to clients on their behalf and says it is an AI the first time it speaks. At Legathum it is created from a recording of about seven minutes, that person's consent and a manual review.
This article is part of Digital Twin by Legathum.
In short
- It replicates one specific person who has given consent, never an invented character.
- Each twin has its own Master Brain, with a Book of Criteria: that person's rules, reviewed and approved.
- The voice comes from the same recording as the face.
- It says it is an AI the first time it speaks, and its name always ends in «Clon IA».
- The person can revoke it with one click, and it stops speaking straight away.
What a professional digital twin is
A professional digital twin is an AI replica of the way one particular person works: what they know, the rules they decide by, how they speak and how they come across. Digital Twin by Legathum sums it up in one line: a professional cloned with AI who serves and sells at any hour.
The term comes from industry, where a digital twin is a virtual copy of a machine or a factory that lets you test changes without touching the real thing. Applied to a professional, what is copied is not a machine but a way of judging, and that needs something industry never has to ask for: the person's consent.
In October 2023, in São Paulo, we presented the world's first public case of a cognitive digital twin: a partial, auditable replica of how one person makes decisions. The full story is here.
What is inside a digital twin
A digital twin has six parts. Each one answers a question a client is entitled to ask: what it knows, what it decides by, whom it resembles and who authorised it.
| Part | What it is | Where it comes from |
|---|---|---|
| Master Brain | The twin's own knowledge base | The materials the professional provides |
| Book of Criteria | Rules in plain language, reviewed and approved, with their source | Approved by the professional, rule by rule |
| Face and voice | The professional's image and voice | A single recording of about seven minutes in the studio |
| Consent | The real person's authorisation | An emailed link and a video of them reading a sentence |
| Review | Manual approval to prevent impersonation | The Legathum team, before it is switched on |
| Name | Always ends in «Clon IA» | So that nobody mistakes it for the person |
The Book of Criteria is what separates a twin from an avatar reading a script. It is the same tool Legathum uses for company hybridisation with AI: written rules, with versions, which a person reviews before they apply.
How it works, step by step
From the moment the person says yes until their twin speaks, the order is this:
- The real person gives consent by email, with a video in which they read a sentence aloud.
- They record about seven minutes in the studio. Their face and their voice both come from that recording.
- The Legathum team checks the recording and the consent by hand before anything is switched on.
- Their Book of Criteria is written: the rules they work by, reviewed and approved by them.
- The twin joins the conversation and says it is an AI the first time it speaks.
- If the person revokes it, with one click, the twin stops speaking straight away.
Today, the house twin, that of Deibson Silva, joins Google Meet under the name «Deibson Clon IA». Legathum's 15-minute meetings, however, are taken by Deibson Silva in person.
What it does today and what is in development
It is worth separating what exists from what is coming, because a twin that promises more than it does loses the trust that justifies it.
What exists today: each twin's Master Brain and Book of Criteria; face and voice from a single recording; consent with a video, manual review and one-click revocation; the twin saying it is an AI the first time it speaks; the house twin on Google Meet; and the booking page connected to the calendar.
In development: each client's own twin selling, scheduling, taking payment for and delivering their service from start to finish without them stepping in, applying each rule in the Book of Criteria and saying where it came from, meeting rooms other than Google Meet, and use in professions outside consultancy. That cycle (selling, scheduling, taking payment, delivering) is what the twin is designed to do; today, at Legathum, the 15-minute meetings are taken by Deibson Silva in person.
Digital twin, chatbot and avatar: the differences
All three hold conversations, but they do not represent the same thing or work from the same judgement. The comparison helps you see what you are buying:
| Chatbot | Video avatar | Professional digital twin | |
|---|---|---|---|
| Whom it represents | A brand | A character or a presenter | One real person, with their consent |
| What it works from | Scripted answers or a general model | A script | Its own Master Brain and that person's Book of Criteria |
| Face and voice | None | Those of the video, often synthetic | The person's own, from a single recording |
| Transparency | Up to whoever installs it | Up to whoever publishes it | Says it is an AI the first time it speaks |
| Control | Whoever configures it | Whoever produces the video | The person revokes it with one click |
What the law says
A digital twin touches two kinds of rule: AI rules, which require transparency, and rules on image and personal data, which require consent.
- EU AI Act, Article 50(1): people interacting with an AI system must be informed of it. Article 50(5) adds that the information must be clear and distinguishable and given at the latest at the first interaction. It applies from 2 August 2026.
- EU AI Act, Article 50(4): anyone using an AI system that generates image, audio or video resembling real people, which could pass as authentic (what the Act calls a deep fake), must disclose that it has been artificially generated or manipulated.
- In Spain, Organic Law 1/1982, Article 7.6: using a person's name, voice or image for commercial purposes is an unlawful intrusion unless the person has given express consent (Article 2.2).
- GDPR, Article 7(3): anyone who gives consent can withdraw it at any time, and withdrawing must be as easy as giving it. In the UK, the ICO's guidance on consent explains the same rule under the UK GDPR.
That is why, at Legathum, consent with a video, manual review, the twin saying it is an AI and one-click revocation are not extras. They are the condition for the twin to exist at all.
Who it makes sense for today
Today, the digital twin is designed for consultancy professionals who sell and deliver a method of their own. If your work follows rules you can write down and clients ask for more of your time than you have, it fits. If every case needs you to decide, the twin can explain your method, but the decision stays with you.
For a consultant who wants to take a method to more companies, the twin pairs with Legathum Legacy, where a virtual consultant works from the method's Book of Criteria. And if what interests you is how it talks to your clients, we cover that in AI virtual clone: what it is, what it does and what it does not.
Frequently asked questions
Is a professional digital twin the same as an AI clone?
It is the same replica seen from two sides. The digital twin is the whole product, with its knowledge and its rules; the clone is what appears in the conversation, and its name always ends in «Clon IA».
Can I create a digital twin of someone else?
No. Twins are only created for real people who give their own consent by email, with a video of them reading a sentence, and the Legathum team checks every case by hand before switching it on.
Do clients know they are talking to an AI?
Yes. The twin says it is an AI the first time it speaks, and its name ends in «Clon IA», as Article 50 of the EU AI Act requires.
What happens if I want to switch my twin off?
You revoke it with one click and it stops speaking straight away, even in the middle of a conversation.
How much does a digital twin cost?
The plans and their annual prices are on the Digital Twin by Legathum plans page.
Sources
- Regulation (EU) 2024/1689 (AI Act), Article 50 (transparency obligations, paragraphs 1, 4 and 5). Consolidated text, European Commission AI Act Service Desk.
- AI Act, Article 113 (application dates). AI Act Service Desk.
- Spain's Organic Law 1/1982 on the right to honour, privacy and one's own image, Articles 2 and 7. BOE, consolidated text, in Spanish.
- Regulation (EU) 2016/679 (GDPR), Article 7 (conditions for consent). Official Journal text in the BOE database, in Spanish.
- Information Commissioner's Office (UK), Consent, UK GDPR guidance.