Chatbot or AI agent? What they are, how they differ and what your business needs
A website chatbot answers questions. An AI agent takes the next steps too, on your website, on the phone and inside your systems.
If you have ever typed into a company's chatbot and got back "Sorry, I didn't understand that", or a link that had nothing to do with your question, you already know the problem.
Customers rarely give a second chance. In a Gartner survey published in September 2026, only one in four customers said they would try a chatbot again after a bad experience.
Greece looks much the same. In a diaNEOsis survey in early 2026, two in three Greeks said they have already used AI. Yet when they need service from a bank, a health service or a utility, even for something small and not urgent, nearly nine in ten prefer to be served by a person.
In our view, the problem is often not the technology. It is that a chatbot gets put where something else was needed.
In one line: a chatbot answers. An AI agent takes the next steps too: it books the appointment, it updates your system.
What is a chatbot?
A chatbot is a program that talks with you in writing, usually in a small window in the corner of a website.
The older ones run on a script: buttons, ready-made options and a "Sorry, I didn't understand that" the moment you type something nobody planned for. The newer ones use a language model, the same technology behind ChatGPT, and pull their answers from a knowledge base with the business's information.
Either way, the job ends in the same place: you ask, it answers. For questions with a fixed answer, like opening hours, the address or what a service includes, that is enough.
What is an AI agent?
An AI agent is a system that understands what you are asking for and then takes the steps needed to make it happen.
To do that, it connects to the tools you already use: email, calendar and spreadsheets from Google or Microsoft, WhatsApp or Telegram, your booking system, your CRM. It checks your business's real data, decides what the next step is and carries it out.
Where human judgement is needed, it stops and hands the case to a person. That is not a weakness. It is how it is designed.
And it does not only work on a website. It can answer the phone, read your email or work inside your office systems without a customer ever seeing it. In our first article on AI in business we put it this way: an AI agent also does the work that comes next.
Chatbot or AI agent: how do they differ?
Take hotels, where the front desk is often short of hands. According to the annual ITEP survey, more than 36,000 jobs in Greek hotels went unfilled in 2025.
Say a guest writes on the hotel's website: "Can I move my booking one week later?"
The chatbot answers correctly: "For booking changes, please contact reception." That is, the same reception desk that is already stretched.
The AI agent checks the booking system for availability on the new dates. It applies the hotel's change policy, makes the change, sends a confirmation and lets reception know. If the booking does not allow changes, it does not decide on its own: it passes the case to a person, with all the details.
Three differences show up straight away:
- What is done at the end. The chatbot gives an answer. The agent finishes the job, or prepares the file for the person who will decide.
- What it connects to. The chatbot reads a knowledge base. The agent reads and updates your systems.
- How it gets things wrong. A scripted chatbot gets stuck on "Sorry, I didn't understand that", while one with a language model can make up an answer with complete confidence. An agent can take the wrong action, which is why its limits are set from the start: what it does on its own, what it never touches and when it calls a person.
A word of caution, though: not everything called an agent is one. In September 2026 Gartner warned again that many vendors are "agent washing": putting the AI agent label on products that already existed, without those products gaining the abilities of a real agent.
Where are AI agents already working?
On the phone at a major Greek bank. Since July 2026, calls to the National Bank of Greece contact centre are answered by "Sofia", an AI agent that understands what the customer wants in their own words. She handles simple tasks on her own, such as reporting a lost card or resetting a password. When a person is needed, she passes the call to an agent together with the whole conversation, so the customer does not have to repeat themselves.
On a smaller scale, the same can happen at a clinic or an office with an AI Voice Agent, a smart phone assistant powered by AI. It answers incoming calls on the number you already have, books appointments in your calendar and passes to your staff whatever needs a human answer.
In the state's mobile app. The digital assistant mAigov, the Greek state's first AI application, answers citizens' questions about public-administration matters. Since September 2025, inside the Gov.gr Wallet app, it also takes the next step: it issues a sworn declaration once the citizen dictates or types the text and the recipient. That is the difference between a chatbot and an AI agent, in practice.
In an online store's chat. At Zalando, the European online fashion store, a customer describes to Zalando Assistant what they are looking for, the way they would to a sales assistant, and gets suggestions. In the same conversation they pick a size, add the item to the basket and go to checkout. According to the company, more than 6 million customers used it in 2025.
In a logistics company's office. Kuehne+Nagel, one of the world's largest transport companies, told its investors in July 2026 that its AI agents have started checking on their own that shipments pass through their planned stages, with no one having to chase them up. AI also handles simple requests for a price quote, and sends the complex cases to a person for review. In a smaller business, that is what Custom AI Agentic Workflows do: they take over a repetitive internal process from start to finish, and your team steps in only where it is needed.
How do you choose: chatbot or AI agent?
Look at the messages you already get every week and answer three questions.
- Do most questions always have the same answer? If yes, a chatbot is enough, or even a good FAQ page.
- Does the answer depend on something that changes? Availability, an order, a booking. If yes, you need an agent connected to your data.
- Does something have to happen after the answer? An appointment, a change, a return. If yes, you need an agent, with clear limits on what it is allowed to do.
If you only said "yes" to the first one, do not pay for an agent.
AI and business: where does Greece stand?
According to the European Investment Bank's annual survey, about one in five Greek businesses used generative AI in 2025. In the European Union and the US, more than one in three did.
American businesses, though, use AI in more parts of their work than European ones.
And one of the areas where Europe lags behind is exactly customer service. That is why it is worth taking the three-question test above today. Even if the answer is a simple chatbot, it is a first step.
Frequently asked questions
Is ChatGPT a chatbot?
When you just ask it questions, yes. You type, it answers and that is where it stops. It becomes something more when it is given tools and permission to use them. The technology behind it can be the same. What changes is what it is allowed to do.
Is there a chatbot that speaks Greek?
Yes, if by "speaks" we mean it writes and understands Greek. Today's language models do. Scripted chatbots only "know" the Greek someone wrote into them.
The question worth asking, though, is a different one: does it understand your customers the way they actually write? Without accents, in Greeklish, with English words mixed in. Test it with a real question before you buy it.
And if you want it to speak literally, out loud? Then we are no longer talking about a chatbot. An AI Avatar Widget on your website has a human face and a natural voice, handles your visitors' questions and qualifies leads, live, in the visitor's language.
What happens when a customer wants to talk to a person?
They should be able to, and easily. In the same survey, Gartner writes that chatbots should work as a bridge to human service, not a trap. A well-built agent knows when to stop. It passes on what it has already learned, so the customer does not have to start again from the beginning.
How does a customer know they are talking to AI?
Since 2 August 2026, Article 50 of the EU AI Act applies. People must be told they are talking to AI, at the latest at the first interaction. That applies to chatbots and agents alike.
---
If you would like to look together at which of your customers' questions only need an answer and which need an action, let's talk.
Auttomix Team