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Lesson 2 of 6 · 14 min · Checked on 10 October 2026

AI in a team or company: rules, costs and literacy

By the end of this lesson you will be able to:

  • Write, on one page, the AI use rule of a small team
  • Tell personal accounts from company accounts: data, invoicing and who sees what
  • Estimate the cost of AI without numbers from memory, including the cost of "free"
  • Explain what Article 4 of the AI Act asks today about AI literacy

Three employees, three ways

At Mr Manuel's drugstore in town, three people work. Ana uses AI on her phone to write the ads for social media. Paulo pastes supplier emails into his free personal account, to summarise them. Rita does not use it, because she thinks "it is forbidden", although nobody ever said so.

Nobody is doing harm on purpose. But the shop does not know what data has left, how much is being spent, or who answers if an ad goes out with the wrong price. One simple thing is missing: a written rule.

The use rule on one page

A good rule fits on one page and answers four questions.

1. What you can do. With examples from the shop: "write drafts of ads and emails", "summarise documents with no personal data", "translate notices for foreign customers".

2. What you cannot do. "Send a customer a text from the AI without reading it." "Use AI to decide about people", such as who gets which shift or who gets a discount. "Use personal accounts for work."

3. Which data never goes in. The list you saw in Level 1 (customer data, ID numbers, health, passwords, contracts), written in your company's own words: "the customer sheet for the discount card never goes in".

4. Who answers. Whoever sends something answers for what they sent, even if the AI wrote it. Also write down who to ask when in doubt and who to warn when something goes wrong.

At the end, a date and the sentence "we review this rule every six months". The tools change fast.

Tip

Write with concrete examples, not textbook words. "Do not paste personal data" is vague. "Do not paste the customer sheet or photographs of medical prescriptions" is something everyone understands.

Personal accounts or a company account

When everyone uses their own personal account, three things are outside the company's control:

  • The data. The conversations belong to the person, not to the company. If Paulo leaves, he takes the history with him, supplier emails included. And the privacy settings (for example, whether the conversations are used for training) are the ones he chose, or the ones it came with.
  • The invoicing. A subscription paid with a personal card usually carries the person's billing details, not the shop's, and nobody knows for sure how much is being spent in total. Confirm that the billing details identify the company and centralise the record of expenses.
  • Who sees what. In a company account there is an administrator who gives and removes access, chooses the privacy settings for everyone and shares projects with the team. Depending on the service, they may also see usage logs. Tell people this, clearly.

In company accounts, these options are usually in an admin area, separate from the personal settings. Before you sign up, look in the terms for three answers: is the data used for training? Where is it stored? What happens when the account is deleted? This is how it looks on 6 October 2026; your screen may differ. Look for the button with the same name.

Costs: doing the sums without numbers

Prices change almost every month, so they are not here: see the Current state page. What does not change is the way of thinking. There are two ways to pay:

  • Per person per month. A fixed amount for each seat. It is predictable. It pays off for someone who uses it every day; for someone who uses it once a month, it is money sitting idle.
  • Per use. You pay according to the amount of text the AI reads and writes. It is the usual way when you connect AI to an automation, as in the previous lesson. It can come out cheap, or shoot up if a flow gets stuck going round in circles. So always set a spending cap.

To estimate, make a simple table: who uses it, for what, how many times a week. Try it for a month, with a cap, and compare the invoice with the estimate.

Watch out

"Free" also has a cost, paid in another way: conversations may be used to train models; there are limits that stop the work halfway through the day; there are terms of use, but a free plan may not offer the data-processing, support or availability conditions a company needs (read the terms); and the rules can change overnight. And there is the cost nobody counts: someone's time reviewing what the AI did. That one always exists, paid or free.

AI literacy: what the law asks

The AI Act (Regulation (EU) 2024/1689) has an article on AI literacy, Article 4. It was rewritten by Regulation (EU) 2026/1744, in force since 27 July 2026. In the current wording, companies and organisations that use AI at work must take measures to promote AI literacy among the people who use it on their behalf. It no longer speaks of guaranteeing a set level for each person.

In shop language: if you put your employees to work with AI, help them understand what they are using. The one-page rule is one such measure. This course, taken by the team, can be another part. Keep a simple note of who did what training and when.

Sources: Regulation (EU) 2024/1689 and Regulation (EU) 2026/1744, on EUR-Lex. This is not legal advice.

Tip

The cheapest form of literacy: ten minutes at the Monday meeting for someone to show a use that went well and a mistake the AI made. You learn more from the mistake.

Exercise: the drugstore's rule

Help me write the AI use rule of a drugstore with 3 employees, on a single page, in plain English.
We use AI for: [e.g. social media ads, summarising supplier emails, translating notices].
Data we have that must never go in: [e.g. customer sheet, purchase prices, photographs of prescriptions].
Who to ask when in doubt: [name or role].
Organise it in 4 parts: what you can do, what you cannot, data that never goes in, who answers. Use concrete examples, not general sentences. At the end, one line with the review date.

Exercise

How I know it worked a page that reads in three minutes, with examples from the house, and a person who, from that page alone, answers the question in step 4 correctly.

If it didn't work

  • Did you get a long text full of legal words? Ask: "Rewrite it as if it were to be pinned on the warehouse wall."
  • Could the person not answer in step 4? An example is missing in the data part. Add one, in their words.
  • Do you not know what data the shop has? Make that list first: what is on the computer, on the shop's phone and in the folders. The rule comes after.

Videos

Como criar uma política segura de uso de IA na empresa
On Smart AI · 3 min · PT-BR · subtitles · Watch on YouTube
Explains in three minutes why a company needs an internal AI-use policy and which data may or may not be entered into these tools.
What is Responsible AI? A Guide to AI Governance
IBM Technology · 6 min · EN · subtitles · Watch on YouTube
IBM on who is accountable for AI in an organisation, AI governance and AI literacy. It is from January 2025.

Test what you learned

1. In your shop, an employee uses a free personal account of an AI assistant to answer complaints, pasting customers' emails into it. What is the best reaction?
2. In a team of ten, two people use AI all day and eight only once a week. How do you decide between paying a fixed amount per person and paying per use?
3. The manager asks you what Article 4 of the AI Act asks today of the small company where you work. Which is the most correct answer?

Corrections to this lesson (1)
  • : Second external review: free plans have terms of use, but may not offer the data-processing, support or availability conditions a company needs; and a subscription on a personal card carries the person's billing details, so you confirm they identify the company and centralise the record of expenses.