What is ChatGPT? Explanation, capabilities and limits for SMBs

Almost everyone has tried ChatGPT at least once by now, but few business owners can explain in a single sentence what it actually is. That is no disgrace, because the hype around it is far larger than any clear explanation. In this article I lay it out plainly: what ChatGPT is, how it works, what you can do with it in practice, and just as importantly, where it lets you down. No science fiction, just an honest picture you can base a decision on.

What is ChatGPT in one paragraph

ChatGPT is a chatbot made by the American company OpenAI, launched at the end of 2022. You type a question or an instruction, and the program responds in plain language. Under the hood sits a large language model, an LLM, trained on enormous amounts of text and therefore surprisingly capable at writing, summarising, translating, explaining, and generating code. ChatGPT did not invent AI and is not the only tool of its kind, but it was the first to make the technology accessible to everyone. That is the whole point: not the technology itself is new, but the fact that you can simply talk to it.

Not the technology was new, but the fact that you can simply talk to it.

How it works, briefly

ChatGPT predicts the most probable next piece of text at each step, based on everything it encountered during training. It does not think, and it does not know anything in the human sense of the word. It is pattern recognition at enormous scale. That sounds simple, yet out of that one unremarkable task comes a system that can draft an email, summarise a contract, or write a piece of code. If you want to understand exactly what is happening under the hood, read what is an LLM. The most important thing to remember: ChatGPT gives you the statistically most likely answer, not necessarily the correct one.

What you can use it for in business

In practice, ChatGPT performs best on work that takes a lot of time and requires little judgement. Writing a first draft of a text: a quote, a job posting, a newsletter. Summarising a long document or report to its core. Translating between languages. Helping rephrase or answer customer questions. Brainstorming ideas when you are stuck. And for anyone who codes: generating, explaining, or reviewing code.

It always comes down to the same thing: you get a usable first version back, which you then check and refine yourself. That is almost always faster than starting from scratch. Not because it is error-free, but because it saves you the blank page.

Where it lets you down

This is where clear-headedness is called for. ChatGPT can say something wrong with great conviction. It can invent a source, copy a price incorrectly, or present a number that has no basis whatsoever. That is called hallucinating, and it happens precisely at the moments when you cannot verify the answer yourself. For anything that matters, a person checking the output remains indispensable.

Beyond that: what you type leaves your organisation. For sensitive or personal data, that is a real concern. Do not enter customer data or confidential documents into a free chatbot without knowing where that data ends up. With a business-tier variant and proper agreements in place (think GDPR and a data processing agreement) it can work, but you have to arrange that deliberately.

Free or paid

ChatGPT has a free version that is more than sufficient for getting started and handling light tasks. Above that there is a paid subscription that gives access to more powerful models, higher limits, and extra features such as web access and working with files. For most business owners the order is straightforward: start free, and switch only when you notice you are running into the limits on work that genuinely saves you time.

ChatGPT is not the only option

ChatGPT got the most attention, but it has long since stopped being the only player. Claude from Anthropic, Gemini from Google, and Copilot from Microsoft do comparable work, each with their own strengths. Which fits best depends on what you want to do with it and which software you already use. An overview is available in the best ChatGPT alternatives. If you mostly work in Dutch, then ChatGPT in Dutch is a good starting point.

What this means for SMBs

The value is not in "go use ChatGPT", but in finding the one process where it genuinely saves you time. An inbox that needs sorting, quotes that get retyped over and over, recurring research that costs hours. Start there, small and concrete, and build in a check at the points that matter. Anyone who approaches it that way gets real value out of it. Anyone who expects it to take over entire processes without errors will be disappointed.

Starting with a clear head

ChatGPT is an excellent reason to learn what AI can and cannot do today, not to immediately build your business on it. The order remains the same as with all AI: start with a process that takes too much time, see whether a tool can reliably take over that part, build in a check, and only scale up once it works.

If you want to know where in your business the most manual work can be eliminated, the free AI Scan gives an initial analysis based on your own situation. And if you want to go further than one-off questions to a chatbot, take a look at AI agents and automation, where AI does not just answer but actually takes over work.