Detectors de IA

AI Detectors: Is It Possible to Tell If a Text Was Written by AI?

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Meritxell Sánchez
| 9 July, 2026

In the age of digitization and Artificial Intelligence (AI), it is increasingly common to encounter machine-generated text. Whether in blogs, websites, at work, or in automated responses from chatbots, AI has permeated every aspect of our lives. But is it possible to tell whether a text was written by a human or by AI? Although it’s a challenge, the answer is a resounding yes.

Differences Between AI-Generated and Human-Written Texts

AI-generated writing and human writing have several key differences. Generally speaking, texts written by humans are more fluid, with stronger logical and emotional connections. Human texts are often imbued with emotion and contain the nuance of personal experience.

On the other hand, AI-generated texts tend to be more informative and accurate, but they may lack a sense of personality and authentic emotions.

What Are AI-Generated Texts Like?

Texts generated by AI, such as ChatGPT, tend to be cleaner and free of grammatical or spelling errors. They often demonstrate perfect language usage and an ability to generate coherent ideas based on the given context.However, they can sometimes come across as too formal or lack the subjective and emotional elements that humans typically infuse into their writing. One interesting option is to humanize the AI-generated text.

 

Patterns and Word Repetitions in AI-Generated Text

AI tends to repeat certain words and phrases more often than a human would. This is because AI uses patterns in the training data to generate text.

Therefore, if the training data contained repetitions, the AI is likely to replicate them as well. This pattern of repetition can be a useful indicator for detecting whether a text has been generated by AI.

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Tools for Detecting AI in Text

Detecting AI-generated text has become increasingly accessible thanks to various tools available on the market. These tools use algorithms and machine learning techniques to distinguish between text generated by humans and text generated by AI.

OpenAI

OpenAI’s AI detection tool is a deep learning model that can identify AI-generated text with a high degree of accuracy. It can be useful for detecting AI-generated text in various contexts, such as academia, journalism, or business.

Turnitin

Known primarily for its plagiarism detection software, Turnitin has also incorporated features to detect AI-generated text. By comparing suspicious text against its database of documents, Turnitin can identify whether a text has been generated by AI.

CheckGPT

CheckGPT is a tool that uses AI text generation techniques to analyze text and determine whether it was generated by AI. It is useful for detecting AI-generated text in real time, such as during online content moderation.

GPTZero

GPTZero is an AI detection tool that relies on a set of rules and patterns to identify AI-generated text. Its approach is particularly effective at detecting text generated by GPT-based models, such as ChatGPT.

Undetectable AI

Undetectable AI is an AI detection platform that combines various techniques, including text pattern analysis, to detect AI-generated text. It can be useful for detecting AI-generated text in a variety of contexts, including social media and websites.

Originality.ai

Originality.ai focuses on detecting the originality of a text, enabling it to identify whether a text was generated by AI or by a human. It uses advanced algorithms to analyze the text and detect patterns indicative of AI-generated text.

At the end of the day, detecting AI in text can be a challenge, but it is certainly possible thanks to the tools and techniques we’ve discussed. By using these tools correctly in our daily work, we can counter the silent invasion of AI into the realm of writing and preserve authenticity and humanity in our communication. To stay ahead of the curve in the digital age, it’s important to familiarize yourself with these tools and use them to ensure the originality and authenticity of texts in their various forms.

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Meritxell Sánchez

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