# Which AI to choose for work

> Not “which one is best” but which one fits your company. Four questions that decide the choice, why it pays to start with what your company already has, and how AI helps you test several tools on your own work.

## The short answer

Start with what your company **already has** and already pays for, and use it with a
**work account**. Everything else is fine-tuning.

Why not “the best”? Because AI tools change every few months, and today's leader
may be in second place tomorrow. What doesn't change is your company's environment,
your data and your work. So that's what we base the choice on.

## Question one: where your company works

> **Schema.** Choosing an AI tool by your company's environment: if the company works in Microsoft 365, start with Copilot Chat on a work account; if in Google Workspace, with Gemini in your work account; if it has neither, or needs more, choose a ChatGPT or Claude business plan. In every case, use a work account, not a personal one.

For companies on Microsoft 365: signed in with a **work account**, Copilot Chat is
available at no extra cost on eligible plans and comes with enterprise data protection.
A paid Microsoft 365 Copilot licence brings it right into Word, Excel, Outlook
and Teams, working with your company's documents.

## Question two: where your data goes

The same model can run under different terms:

- **Work account and business plan** — vendors usually commit not to use your
  data to train models, and IT can see who uses the tool.
- **Personal free account** — the terms are different, and chats can often be
  used to improve the model unless you switch that off in the settings.

Before you buy, read the vendor's business terms, not the advert. Why this
matters — in the lesson [How to start using AI at work (safely)](/en/lessons/using-ai-at-work-safely).

## Question three: what the AI has to do

- **Write and analyse** — emails, summaries, spreadsheets, texts. All the main
  tools can do this, and they do it well in Lithuanian too.
- **Act** — create files, use a browser, work with your apps. For that you need
  AI with tools (often called agents). Choose them deliberately: they get more
  done, but they can also make a mistake in your systems.

The lesson [Build a new website in 1 hour](/en/lessons/build-a-new-website) shows
what working with an AI that acts looks like.

## Question four: what it costs

- **Free plans** are fine for trying things out, but they have limits — on the number of messages and on features.
- **Paid plans** for one person usually cost about €20–30 a month.
  Prices and plan names change — check on the vendor's website.
- Before buying for the whole company — **a month's trial with a few people**.

## The best test is your own work

Rankings measure general things. What matters to you is how the tool writes your
emails in your language and how well it understands your spreadsheets. Let AI plan the test:

```text
Help me compare two or three AI tools on MY work, not on rankings.

ABOUT ME
- Job and most common tasks: [e.g. replies to clients, proposals,
  Excel reports]
- Which tools I can try: [e.g. Copilot with my work account, ChatGPT]

PROCESS
1. ASK. Ask me the missing questions, one at a time.
2. TEST. Suggest 3 real tasks from my work and one identical prompt
   for each. The tasks must contain no personal or confidential data —
   if needed, make up an anonymised example.
3. SCORING. Prepare a table: task → tool → accuracy, language,
   usefulness (1–5) → notes.

GOAL
The job is finished when I have a filled-in table based on my own tests and
a clear recommendation — which tool for which tasks.

RULES
- Don't make up prices or features. If you don't have today's information,
  write down what I need to check myself.
- Answer in English.

AT THE END
Separately — WHAT YOU DID NOT CHECK.
```

<div class="routes">
  <div class="route ai">
    <p class="route-label">🤖 AI route <span class="pill">recommended</span></p>
    <h4>The AI plans the test</h4>
    <p>The AI picks the tasks and writes identical prompts; you paste them into each
      tool and bring the answers back. The AI puts together the table and the conclusion itself.</p>
    <p><strong>Your job:</strong> judge the answers as someone who knows the work.
      Your judgement is the most important part of the table.</p>
  </div>
  <div class="route manual">
    <p class="route-label">✋ Manual route</p>
    <h4>Three tasks, two windows</h4>
    <ol>
      <li>Pick three real tasks from your work — without confidential data.</li>
      <li>Open two tools side by side and give them the same text.</li>
      <li>Score each answer from 1 to 5: is it accurate, is the language good, is it useful.</li>
    </ol>
  </div>
</div>

<aside class="remedy">
  <p class="remedy-label">💊 The fix</p>
  <h3>Start with what you already have — on a work account.</h3>
  <p class="rule-line">The best AI tool is the one you use safely every day,
    not the one that won last month's ranking.</p>
  <ul>
    <li><strong>A work account</strong>, not a personal one — even if the tool is the same.</li>
    <li><strong>One main tool</strong> for the company, so the rules are clear.</li>
    <li><strong>A test on your own work</strong> before buying for everyone.</li>
    <li><strong>A review every six months</strong> — the market changes fast.</li>
  </ul>
  <p class="caveat">This lesson deliberately doesn't rank vendors: specific features and prices
    change faster than lessons get updated. The criteria don't.</p>
</aside>

## What to do this week

1. Check whether your company already has AI with a work account (e.g. Copilot Chat).
2. Use the prompt above to test two tools on three of your own tasks.
3. Show the result to your manager or IT — it could become the basis for a company-wide decision.

## Check yourself

Five questions on what you've just read. At the end you'll get a certificate
with your score.